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Form S-3

As filed with the Securities and Exchange Commission on July 25, 2007

Registration Statement No. 333-

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-3

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

BOSTON PROPERTIES, INC.

and

BOSTON PROPERTIES LIMITED PARTNERSHIP

(Exact name of registrants as specified in charter)

Delaware

04-2473675

04-3372948

(State or Other Jurisdiction

of Incorporation)

(IRS Employer

Identification No.)

The Prudential Center

800 Boylston Street, Suite 1900

Boston, Massachusetts 02199-8103

(617) 236-3300

(Address, Including Zip Code, and Telephone Number, Including Area Code, of Registrant’s Principal Executive Offices)

Mortimer B. Zuckerman, Chairman

Edward H. Linde, Chief Executive Officer

Boston Properties, Inc.

The Prudential Center

800 Boylston Street, Suite 1900

Boston, Massachusetts 02199-8103

(617) 236-3300

(Name, Address, Including Zip Code, and Telephone Number, Including Area Code, of Agent for Service)

With copies to:

Gilbert G. Menna, P.C.

Ettore A. Santucci, P.C.

Goodwin Procter LLP

Exchange Place

Boston, Massachusetts 02109

(617) 570-1000

Eric G. Kevorkian, Esq.

Vice President, Corporate Counsel

Boston Properties, Inc.

The Prudential Center

800 Boylston Street, Suite 1900

Boston, Massachusetts 02199-8103

(617) 236-3300

Approximate date of commencement of proposed sale to the public: From time to time after this registration statement becomes effective.

If the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box. ¨

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, other than securities offered only in connection with dividend or interest reinvestment plans, check the following box. x

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ¨

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ¨

If this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box. ¨

If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box. ¨

CALCULATION OF REGISTRATION FEE


Title of Each Class of Securities to be Registered	Amount to be Registered /Proposed Maximum Offering Price Per Unit / Proposed Maximum Aggregate Offering Price	Amount of Registration Fee
Boston Properties, Inc.:
Debt securities (1)(2)	(3)(4)	$0(3)(4)
Common stock, par value $0.01 per share (5)	(3)(4)	$0(3)(4)
Preferred stock, par value $0.01 per share (6)	(3)(4)	$0(3)(4)
Depositary shares (7)	(3)(4)	$0(3)(4)
Warrants (8)	(3)(4)	$0(3)(4)
Preferred Stock Purchase Rights (9)	(3)(4)	$0(3)(4)
Boston Properties Limited Partnership:	(3)(4)	$0(3)(4)
Debt securities (2)	(3)(4)	$0(3)(4)
Guarantees of debt securities of Boston Properties, Inc. (10)	(3)(4)	$0(3)(4)
TOTAL	$752,737,500	$23,109

(1)	Debt securities issued by Boston Properties, Inc. may be accompanied by guarantees to be issued by Boston Properties Limited Partnership.

(2)	Debt securities are issuable in series as senior debt securities or subordinated debt securities which may be convertible into or exchangeable for common stock or preferred stock of Boston Properties, Inc.

(3)	This registration statement covers up to $2,000,000,000 of an indeterminate amount of the securities of each identified class of securities.

(4)

Estimated solely for the purpose of calculating the registration fee. Calculated pursuant to Rule 457(o) of the rules and regulations of the Securities Act of 1933, as amended. Separate consideration may or may not be received for securities that are issuable on exercise, conversion or exchange of other securities or that are represented by depositary shares. In accordance with Rule 457(p), Boston Properties, Inc. and Boston Properties Limited Partnership are carrying over the following registration fees (a) $16,885 of unutilized fees relating to $550,000,000 aggregate initial offering price of unsold securities of Boston Properties Limited Partnership that were registered under Registration Statement No. 333-107792, filed on August 8, 2003 (out of an aggregate fee of $80,900 that was previously paid for $1,000,000,000 aggregate initial offering price of securities) and (b) $21,406 of unutilized fees relating to $697,262,500 aggregate initial offering price of unsold securities of Boston Properties, Inc. that were registered under Registration Statement No. 333-116556, filed on June 17, 2004 (out of an aggregate fee of $77,330 that was previously paid for $1,000,000,000 aggregate initial offering price of securities). Pursuant to Rule 457(p) under the Securities Act, such unutilized filing fees may be applied to the filing fees payable pursuant to this Registration Statement. Accordingly, a total of $23,109 is being paid concurrently with the filing of this registration statement. The aggregate maximum offering price of all securities of all classes offered pursuant to this Registration Statement will not exceed $2,000,000,000 (including $1,247,262,500 of securities of Boston Properties, Inc. and Boston Properties Limited Partnership previously registered pursuant to the above referenced registration statements).

(5)	Such indeterminate number of shares of common stock as may be issued from time to time at indeterminate prices, or as may be issuable upon conversion of preferred stock or upon conversion or exchange of debt securities or upon exercise of warrants registered hereby, as the case may be.

(6)	Such indeterminate number of shares of preferred stock as may be issued from time to time at indeterminate prices, or as may be issuable upon conversion or exchange of debt securities or upon exercise of warrants registered hereby, as the case may be.

(7)	To be represented by depositary receipts representing an interest in all or a specified portion of a share of preferred stock. Each depositary share will be issued under a deposit agreement.

(8)	Such indeterminate number of warrants or other rights, including without limitation share purchase or subscription rights, as may be issued from time to time at indeterminate prices.

(9)

This Registration Statement also relates to the rights to purchase shares of Series E Junior Participating Cumulative Preferred Stock of the Registrant, which are attached to all shares of Common Stock issued, pursuant to the terms of the Registrant’s Shareholder Rights Agreement dated June 18, 2007. Until the occurrence of prescribed events, the rights are not exercisable, are evidenced by the certificates for the Common Stock and will be transferred with and only with such Common Stock. Because no separate consideration is paid for the rights, the registration fee therefor is included in the fee for the Common Stock.

(10)	Pursuant to Rule 457(n) under the Securities Act, no separate registration fee will be paid in respect of any such guarantees.

LOGO

Prospectus

$2,000,000,000

BOSTON PROPERTIES, INC.

Debt Securities

Common Stock

Preferred Stock

Depositary Shares

Warrants

BOSTON PROPERTIES LIMITED PARTNERSHIP

Debt Securities

Guarantees

Boston Properties, Inc. may offer to sell from time to time debt securities, common stock, preferred stock, and warrants. The debt securities of Boston Properties, Inc. may be convertible into common stock or preferred stock of Boston Properties, Inc. and may be guaranteed by Boston Properties Limited Partnership. The preferred stock of Boston Properties, Inc. may either be sold separately or represented by depositary shares and may be convertible into common stock or preferred stock of another series. Boston Properties Limited Partnership may offer to sell from time to time debt securities which may be exchangeable for common stock or for preferred stock of Boston Properties, Inc.

Boston Properties, Inc. and Boston Properties Limited Partnership may offer securities at an aggregate offering price of up to $2,000,000,000. The debt securities, common stock, preferred stock and warrants of Boston Properties, Inc. and the debt securities of Boston Properties Limited Partnership may be offered separately or together, in multiple series, in amounts, at prices and on terms that will be set forth in one or more prospectus supplements to this prospectus. Boston Properties Limited Partnership may guarantee the payment of principal of, premium, if any, and interest on debt securities issued by Boston Properties, Inc. to the extent and on the terms described herein and in the applicable prospectus supplement to this prospectus. Because the maximum aggregate offering price of all securities is $2,000,000,000, Boston Properties, Inc.’s issuance of any securities will reduce the amount of other securities that Boston Properties, Inc. can issue and will, correspondingly, reduce the amount of debt securities that Boston Properties Limited Partnership can issue. Similarly, to the extent that Boston Properties Limited Partnership issues debt securities, the amount of securities that Boston Properties, Inc. can issue will be reduced.

This prospectus describes some of the general terms that may apply to these securities and the general manner in which they may be offered. Each time Boston Properties, Inc. or Boston Properties Limited Partnership sells securities, a prospectus supplement will be provided that will contain specific information about the terms of any securities offered and the specific manner in which the securities will be offered. The prospectus supplement will also contain information, where appropriate, about material United States federal income tax consequences relating to, and any listing on a securities exchange of, the securities covered by the prospectus supplement. The prospectus supplement may add to, update or change the information in this prospectus. You should read this prospectus and any prospectus supplement carefully before you invest in our securities. This prospectus may not be used to sell securities unless accompanied by a prospectus supplement.

Boston Properties, Inc. or Boston Properties Limited Partnership may offer the securities directly to investors, through agents designated from time to time by Boston Properties, Inc. or Boston Properties Limited Partnership, or to or through underwriters or dealers. If any agents, underwriters, or dealers are involved in the sale of any of the securities, their names, and any applicable purchase price, fee, commission or discount arrangement with, between or among them will be set forth, or will be calculable from the information set forth, in an accompanying prospectus supplement. For more detailed information, see “Plan of Distribution” on page 76.

The common stock of Boston Properties, Inc. is listed on the New York Stock Exchange under the symbol “BXP.”

Neither the Securities and Exchange Commission nor any other regulatory body has approved or disapproved of these securities or passed upon the accuracy or adequacy of this prospectus. Any representation to the contrary is a criminal offense.

Prospectus dated , 2007.

TABLE OF CONTENTS


ABOUT THIS PROSPECTUS		1

WHERE YOU CAN FIND MORE INFORMATION		2

INFORMATION INCORPORATED BY REFERENCE		3

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS		4

BOSTON PROPERTIES, INC. AND BOSTON PROPERTIES LIMITED PARTNERSHIP		6

USE OF PROCEEDS		7

RATIOS OF EARNINGS TO FIXED CHARGES		8

RATIOS OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED DISTRIBUTIONS		9

DESCRIPTION OF DEBT SECURITIES		10

DESCRIPTION OF BOSTON PROPERTIES LIMITED PARTNERSHIP GUARANTEES		29

DESCRIPTION OF COMMON STOCK OF BOSTON PROPERTIES, INC.		30

DESCRIPTION OF PREFERRED STOCK OF BOSTON PROPERTIES, INC.		34

DESCRIPTION OF DEPOSITORY SHARES OF BOSTON PROPERTIES, INC.		40

DESCRIPTION OF WARRANTS OF BOSTON PROPERTIES, INC.		44

LIMITS ON OWNERSHIP OF BOSTON PROPERTIES, INC. COMMON STOCK		45

IMPORTANT PROVISIONS OF DELAWARE LAW, BOSTON PROPERTIES, INC.’S CERTIFICATE OF INCORPORATION AND BYLAWS AND OTHER GOVERNANCE DOCUMENTS		48

LEGAL OWNERSHIP AND BOOK-ENTRY ISSUANCE		52

UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS		57

PLAN OF DISTRIBUTION		76

LEGAL MATTERS		79

EXPERTS		79

ABOUT THIS PROSPECTUS

This prospectus is part of a “shelf” registration statement that we have filed under the Securities Act of 1933, as amended (the “Securities Act”), with the Securities and Exchange Commission (the “SEC”). By using a shelf registration statement, Boston Properties, Inc. is registering an unspecified amount of debt securities, common stock, preferred stock and warrants, and may sell such securities, at any time and from time to time, in one or more offerings. By using a shelf registration statement, Boston Properties Limited Partnership is registering an unspecified amount of debt securities and may sell such debt securities, at any time and from time to time, in one or more offerings. The registration statement also registers the possible guarantee by Boston Properties Limited Partnership of debt securities to be issued by Boston Properties, Inc. The registration statement limits the maximum aggregate amount of all securities that Boston Properties, Inc. and Boston Properties Limited Partnership may sell to $2,000,000,000.

As used in this prospectus and the registration statement on Form S-3 of which this prospectus is a part, unless the context otherwise requires, the terms “we,” “us,” and “our” refer to Boston Properties, Inc., a Delaware corporation organized in 1997, individually or together with its subsidiaries, including Boston Properties Limited Partnership, a Delaware limited partnership and the entity through which Boston Properties, Inc. conducts substantially all of its business and owns substantially all of its assets, and our predecessors, except where we make clear that we mean only the parent company, Boston Properties, Inc. In addition, we sometimes refer to Boston Properties Limited Partnership as the “Operating Partnership” or “BPLP,” and Boston Properties, Inc. as the “Company” or “BXP.”

You should rely only on the information contained in this prospectus and the accompanying prospectus supplement or incorporated by reference in these documents. No dealer, salesperson or other person is authorized to give any information or to represent anything not contained or incorporated by reference in this prospectus or the accompanying prospectus supplement. If anyone provides you with different, inconsistent or unauthorized information or representations, you must not rely on them. This prospectus and the accompanying prospectus supplement are an offer to sell only the securities offered by these documents, but only under circumstances and in jurisdictions where it is lawful to do so. The information contained in this prospectus or any prospectus supplement is current only as of the date on the front of those documents.

WHERE YOU CAN FIND MORE INFORMATION

Boston Properties, Inc. and Boston Properties Limited Partnership are subject to the information requirements of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and in accordance with the Exchange Act, we file annual, quarterly and current reports, proxy statements and other information with the SEC. You may read and copy any document we file at the SEC’s Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549. You may call the SEC at 1-800-SEC-0330 for further information on the operation of the Public Reference Room. Our SEC filings are also available to the public from the SEC’s website at http://www.sec.gov. In addition, you may read our SEC filings at the offices of the New York Stock Exchange (the “NYSE”), which is located at 20 Broad Street, New York, New York 10005.

Boston Properties, Inc. has a website located at http://www.bostonproperties.com. The information on this website is not a part of this prospectus.

INFORMATION INCORPORATED BY REFERENCE

The SEC allows us to incorporate by reference the information we file with the SEC, which means that we can disclose important information to you by referring you to these documents. The information incorporated by reference is an important part of this prospectus, and information that we file later with the SEC will automatically update and supersede the information already incorporated by reference. The SEC file number of Boston Properties, Inc. is 1-13087 and the SEC file number of Boston Properties Limited Partnership is 0-50209. We are incorporating by reference the documents listed below, which we have already filed with the SEC:

•

Boston Properties, Inc.’s Annual Report on Form 10-K for the year ended December 31, 2006 filed on March 1, 2007;

•

Boston Properties Limited Partnership’s Annual Report on Form 10-K for the year ended December 31, 2006 filed on March 1, 2007;

•

Boston Properties, Inc.’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2007 filed on May 10, 2007;

•

Boston Properties Limited Partnership’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2007 filed on May 10, 2007;

•

the description of Boston Properties, Inc. common stock in Boston Properties, Inc.’s Registration Statement on Form 8-A filed on June 12, 1997, including any amendments and reports filed for the purpose of updating such description;

•

the description of the rights to purchase shares of Series E Junior Participating Cumulative Preferred Stock contained in Boston Properties, Inc.’s Registration Statement on Form 8-A filed on June 18, 2007, including any amendments and reports filed for the purpose of updating such description;

•

Boston Properties, Inc.’s Current Reports on Form 8-K filed on January 31, 2007, February 6, 2007, February 14, 2007, February 16, 2007, March 21, 2007, May 16, 2007, June 18, 2007 and July 25, 2007;

•

Boston Properties Limited Partnership’s Current Reports on Form 8-K filed on January 31, 2007, February 6, 2007, February 14, 2007, February 16, 2007, March 21, 2007, May 16, 2007, June 18, 2007 and July 25, 2007; and

•

all documents filed by Boston Properties Limited Partnership and Boston Properties, Inc. with the SEC pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act after the date of this prospectus and prior to the termination of this offering.

Upon request, we will provide, without charge, to each person, including any beneficial owner, to whom a copy of this prospectus is delivered a copy of the documents incorporated by reference in this prospectus. You may request a copy of these filings, and any exhibits we have specifically incorporated by reference as an exhibit in this prospectus, by writing or telephoning us at the following:

Boston Properties, Inc.

The Prudential Center

800 Boylston Street, Suite 1900

Boston, Massachusetts 02199-8103

Attention: Investor Relations

(617) 236-3300

This prospectus is part of a registration statement we filed with the SEC. We have incorporated exhibits into the registration statement. You should read the exhibits carefully for provisions that may be important to you.

You should rely only on the information incorporated by reference or provided in this prospectus or any prospectus supplement. We have not authorized anyone to provide you with different or additional information. We are not making an offer of these securities in any state where the offer is not permitted. You should not assume that the information in this prospectus or in the documents incorporated by reference is accurate as of any date other than the date on the front of this prospectus or the date of the applicable documents.

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

This prospectus, including the information incorporated by reference into this prospectus, contains forward-looking statements within the meaning of the federal securities laws. We caution investors that any forward-looking statements contained in this prospectus or any of the documents incorporated by reference, or which management may make orally or in writing from time to time, are based on management’s beliefs and on assumptions made by, and information currently available to, management. When used, the words “anticipate,” “believe,” “expect,” “intend,” “may,” “might,” “plan,” “estimate,” “project,” “should,” “will,” “result,” and similar expressions which do not relate solely to historical matters are intended to identify forward-looking statements. Such statements are subject to risks, uncertainties, and assumptions and are not guarantees of future performance, which may be affected by known and unknown risks, trends, uncertainties, and factors that are beyond our control. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those anticipated, estimated, or projected. We caution you that, while forward-looking statements reflect our good faith beliefs when we make them, they are not guarantees of future performance and are impacted by actual events when they occur after we make such statements. We expressly disclaim any responsibility to update our forward-looking statements, whether as a result of new information, future events, or otherwise. Accordingly, investors should use caution in relying on past forward-looking statements, which are based on results and trends at the time they are made, to anticipate future results or trends.

Some of the risks and uncertainties that may cause our actual results, performance, or achievements to differ materially from those expressed or implied by forward-looking statements include, among others, the following:

•

general risks affecting the real estate industry (including, without limitation, the inability to enter into or renew leases, dependence on tenants’ financial condition, and competition from other developers, owners, and operators of real estate);

•

risks associated with the availability and terms of financing and the use of debt to fund acquisitions and developments including the risk associated with interest rates impacting the cost and/or availability of financing;

•

risks associated with forward interest rate contracts and the effectiveness of such arrangements;

•

failure to manage effectively our growth and expansion into new markets or to integrate acquisitions successfully;

•

risks and uncertainties affecting property development and construction (including, without limitation, construction delays, cost overruns, inability to obtain necessary permits, and public opposition to such activities);

•

risks associated with actual or threatened terrorist attacks or armed conflicts involving the United States;

•

risks associated with the impact on our insurance program if the Federal Terrorism Risk Insurance Act, or TRIA, which expires December 31, 2007, is not extended or is extended on different terms;

•

risks associated with downturns in the national and local economies, increases in interest rates, and volatility in the securities markets;

•

costs of compliance with the Americans with Disabilities Act and other similar laws;

•

potential liability for uninsured losses and environmental contamination;

•

risks associated with Boston Properties, Inc.’s potential failure to qualify as a real estate investment trust under the Internal Revenue Code of 1986, as amended, and possible adverse changes in tax and environmental laws;

•

risks associated with possible state and local tax audits;

•

risks associated with our dependence on key personnel whose continued service is not guaranteed; and

•

the other risk factors identified in Boston Properties, Inc.’s or Boston Properties Limited Partnership’s annual reports on Form 10-K for the year ended December 31, 2006, as well as in other reports of Boston Properties, Inc. or Boston Properties Limited Partnership filed from time to time with the SEC.

The risks included here are not exhaustive and you should be aware that there may be other factors which could adversely affect our business and financial performance. Moreover, we operate in a very competitive and rapidly changing environment. New risk factors emerge from time to time and it is not possible for management to predict all such risk factors, nor can we assess the impact of all such risk factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements. Given these risks and uncertainties, investors should not place undue reliance on forward-looking statements as a prediction of actual results. Investors should also refer to Boston Properties, Inc.’s and Boston Properties Limited Partnership’s annual reports on Form 10-K, quarterly reports on Form 10-Q for future periods and current reports on Form 8-K as they file them with the SEC, and to other materials Boston Properties Limited Partnership or Boston Properties, Inc. may furnish to the public from time to time through Forms 8-K or otherwise.

All subsequent written and oral forward-looking statements attributable to us or any person acting on our behalf are expressly qualified in their entirety by the cautionary statements contained or referred to in this section. We do not undertake any obligation to release publicly any revisions to our forward-looking statements to reflect events or circumstances after the date of this prospectus or to reflect the occurrence of unanticipated events. For more information on the uncertainty of forward-looking statements, see “Risk Factors” in the Annual Reports on Form 10-K and, to the extent applicable, the Quarterly Reports on Form 10-Q, of each of Boston Properties, Inc. and Boston Properties Limited Partnership and any applicable prospectus supplement.

BOSTON PROPERTIES, INC. AND BOSTON PROPERTIES LIMITED PARTNERSHIP

Boston Properties, Inc., a Delaware corporation, is a self-administered and self-managed real estate investment trust (“REIT”). Boston Properties, Inc. is the sole general partner of Boston Properties Limited Partnership and at June 30, 2007 owned an approximate 84.0% (81.4% at June 30, 2006) general and limited partnership interest in the Operating Partnership. Partnership interests in the Operating Partnership are denominated as “common units of partnership interest” (also referred to as “OP Units”), “long term incentive units of partnership interest” (also referred to as “LTIP Units”) or “preferred units of partnership interest” (also referred to as “Preferred Units”).

Unless specifically noted otherwise, all references to OP Units exclude units held by Boston Properties, Inc. A holder of an OP Unit may present such OP Unit to the Operating Partnership for redemption at any time (subject to restrictions agreed upon at the time of issuance of OP Units to particular holders that may restrict such redemption right for a period of time, generally one year from issuance). Upon presentation of an OP Unit for redemption, the Operating Partnership must redeem such OP Unit for cash equal to the then value of a share of common stock of Boston Properties, Inc. (“Common Stock”). In lieu of a cash redemption, Boston Properties, Inc. may elect to acquire such OP Unit for one share of Common Stock. Because the number of shares of Common Stock outstanding at all times equals the number of OP Units that Boston Properties, Inc. owns, one share of Common Stock is generally the economic equivalent of one OP Unit, and the quarterly distribution that may be paid to the holder of an OP Unit equals the quarterly dividend that may be paid to the holder of a share of Common Stock. An LTIP Unit is generally the economic equivalent of a share of restricted common stock of the Company. LTIP Units, whether vested or not, will receive the same quarterly per unit distributions as OP Units, which equal per share dividends on Common Stock.

At June 30, 2007, there was one series of Preferred Units outstanding (i.e., Series Two Preferred Units). The Series Two Preferred Units bear a distribution that is set in accordance with an amendment to the partnership agreement of the Operating Partnership. Preferred Units may also be converted into OP Units at the election of the holder thereof or the Operating Partnership in accordance with the amendment to the partnership agreement.

USE OF PROCEEDS

Boston Properties, Inc. is required by the terms of the partnership agreement of Boston Properties Limited Partnership to contribute the net proceeds of any sale of common stock, preferred stock or depositary shares to Boston Properties Limited Partnership in exchange for additional common units or preferred units, as the case may be. If Boston Properties, Inc. issues any debt securities, it may lend those proceeds to Boston Properties Limited Partnership. As will be more fully described in the applicable prospectus supplement, Boston Properties, Inc. and Boston Properties Limited Partnership intend to use the net proceeds from the sale of securities for general corporate or partnership purposes or other uses. These other uses may include, among others, the funding of development opportunities, asset acquisitions or the repayment of indebtedness.

RATIOS OF EARNINGS TO FIXED CHARGES

The following table sets forth Boston Properties, Inc.’s historical ratio of earnings to fixed charges for the periods indicated:

Three

Months Ended
March 31,
2007

Year Ended
December 31,
2006

Year Ended
December 31,
2005

Year Ended
December 31,
2004

Year Ended
December 31,
2003

Year Ended
December 31,
2002

Ratio of Earnings to Fixed Charges

11.39

4.37

2.53

1.96

2.08

2.66

The ratio of earnings to fixed charges was computed by dividing earnings by fixed charges. Earnings consist of income before minority interests in property partnerships, income from unconsolidated joint ventures, minority interest in Boston Properties Limited Partnership, gains on sales of real estate and other assets, discontinued operations, cumulative effect of a change in accounting principle and preferred dividend, plus gains on sales of real estate and other assets, amortization of interest capitalized, distributions from unconsolidated joint ventures, and fixed charges, minus interest capitalized and preferred distributions. Fixed charges consist of interest expensed, which includes credit enhancement fees and amortization of loan costs, and interest capitalized.

The following table sets forth Boston Properties Limited Partnership’s historical ratio of earnings to fixed charges for the periods indicated:


	Three Months Ended March 31, 2007	Year Ended December 31, 2006	Year Ended December 31, 2005	Year Ended December 31, 2004	Year Ended December 31, 2003	Year Ended December 31, 2002
Ratio of Earnings to Fixed Charges	11.70	4.41	2.56	1.96	2.08	2.67

The ratio of earnings to fixed charges was computed by dividing earnings by fixed charges. Earnings consist of income before minority interests in property partnerships, income from unconsolidated joint ventures, gains on sales of real estate and other assets, discontinued operations, cumulative effect of a change in accounting principle and preferred distributions and allocation of undistributed earnings, plus gains on sales of real estate and other assets, amortization of interest capitalized, distributions from unconsolidated joint ventures, and fixed charges, minus interest capitalized and preferred distributions. Fixed charges consist of interest expensed, which includes credit enhancement fees and amortization of loan costs, and interest capitalized.

RATIOS OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED DISTRIBUTIONS

The following table sets forth Boston Properties, Inc.’s historical ratios of earnings to combined fixed charges and preferred distributions for the periods indicated:


	Three Months Ended March 31, 2007	Year Ended December 31, 2006	Year Ended December 31, 2005	Year Ended December 31, 2004	Year Ended December 31, 2003	Year Ended December 31, 2002
Ratio of Earnings to Combined Fixed Charges and Preferred Distributions	11.65	4.07	2.34	1.86	1.93	2.40

The ratio of earnings to combined fixed charges and preferred distributions was computed by dividing earnings by combined fixed charges and preferred distributions. Earnings consist of income before minority interests in property partnerships, income from unconsolidated joint ventures, minority interest in Boston Properties Limited Partnership, gains on sales of real estate and other assets, discontinued operations, cumulative effect of a change in accounting principle and preferred dividend, plus gains on sales of real estate and other assets, amortization of interest capitalized, distributions from unconsolidated joint ventures, and combined fixed charges and preferred distributions, minus interest capitalized and preferred distributions. Combined fixed charges and preferred distributions consist of interest expensed, which includes credit enhancement fees and amortization of loan costs, interest capitalized, and preferred distributions.

The following table sets forth Boston Properties Limited Partnership historical ratios of earnings to combined fixed charges and preferred distributions for the periods indicated:


	Three Months Ended March 31, 2007	Year Ended December 31, 2006	Year Ended December 31, 2005	Year Ended December 31, 2004	Year Ended December 31, 2003	Year Ended December 31, 2002
Ratio of Earnings to Combined Fixed Charges and Preferred Distributions	11.97	4.10	2.36	1.86	1.94	2.40

The ratio of earnings to combined fixed charges and preferred distributions was computed by dividing earnings by combined fixed charges and preferred distributions. Earnings consist of income before minority interests in property partnerships, income from unconsolidated joint ventures, gains on sales of real estate and other assets, discontinued operations, cumulative effect of a change in accounting principle and preferred distributions and allocation of undistributed earnings, plus gains on sales of real estate and other assets, amortization of interest capitalized, distributions from unconsolidated joint ventures, and combined fixed charges and preferred distributions, minus interest capitalized and preferred distributions. Combined fixed charges and preferred distributions consist of interest expensed, which includes credit enhancement fees and amortization of loan costs, interest capitalized, and preferred distributions.

DESCRIPTION OF DEBT SECURITIES

Debt Securities May Be Senior or Subordinated

Boston Properties, Inc. and Boston Properties Limited Partnership may issue senior or subordinated debt securities at one or more times in one or more series. Each series of debt securities may have different terms. Neither the senior debt securities nor the subordinated debt securities will be secured by any property or assets of Boston Properties, Inc., Boston Properties Limited Partnership or any of their respective subsidiaries. Thus, by owning a debt security, you are an unsecured creditor of Boston Properties, Inc. or Boston Properties Limited Partnership, as the case may be.

Neither any limited or general partner of Boston Properties Limited Partnership, including Boston Properties Inc., nor any principal, shareholder, member, officer, director, trustee or employee of any limited or general partner of Boston Properties, Inc. or Boston Properties Limited Partnership or of any successor of any limited or general partner of Boston Properties Limited Partnership has any obligation for payment of debt securities or for any of Boston Properties Inc.’s or Boston Properties Limited Partnership’s obligations, covenants or agreements contained in the debt securities or the applicable indenture. By accepting the debt securities, you waive and release all liability of this kind. The waiver and release are part of the consideration for the issuance of debt securities. This waiver and release will not apply to the liability of Boston Properties Limited Partnership solely in its capacity of guarantor of any series of debt securities of Boston Properties Inc. and solely to the extent of any such guarantee.

The senior debt securities of Boston Properties, Inc. and the senior debt securities of Boston Properties Limited Partnership will be issued under the applicable senior debt indenture, as described below, and will rank equally with all of Boston Properties, Inc.’s or Boston Properties Limited Partnership’s, as the case may be, other senior unsecured and unsubordinated debt.

The subordinated debt securities of Boston Properties, Inc. and the subordinated debt securities of Boston Properties Limited Partnership will be issued under the applicable subordinated debt indenture, as described below, and will be subordinate in right of payment to all of Boston Properties, Inc.’s or Boston Properties Limited Partnership’s, as the case may be, “senior debt,” as defined in the applicable subordinated debt indenture, as described under “Description of Debt Securities—Subordination Provisions” beginning on page 24 and in the applicable prospectus supplement. The prospectus supplement for any series of subordinated debt securities or the information incorporated in this prospectus by reference will indicate the approximate amount of senior debt outstanding as of the end of Boston Properties Inc.’s or Boston Properties Limited Partnership’s, as the case may be, most recent fiscal quarter. None of the indentures limit Boston Properties Inc.’s or Boston Properties Limited Partnership’s ability to incur additional senior debt, unless otherwise described in the prospectus supplement relating to any series of debt securities.

Boston Properties, Inc. senior debt will be structurally subordinate to the indebtedness of Boston Properties Limited Partnership, (unless Boston Properties Limited Partnership guarantees such indebtedness and then solely to the extent of any such guarantee), and will be structurally subordinate to the indebtedness of the subsidiaries of Boston Properties Limited Partnership. Boston Properties Limited Partnership’s senior debt is, and any additional senior debt of Boston Properties Limited Partnership will be, structurally subordinate to the indebtedness of Boston Properties Limited Partnership’s subsidiaries and will be structurally senior to any indebtedness of Boston Properties, Inc., unless Boston Properties Limited Partnership guarantees such indebtedness of Boston Properties, Inc. See “—Boston Properties Inc.’s and Boston Properties Limited Partnership’s Debt Securities Are Structurally Subordinated to Indebtedness of Boston Properties Limited Partnership and Boston Properties Limited Partnership’s Subsidiaries, Respectively” below.

When we refer to “senior debt securities” in this prospectus, we mean both the senior debt securities of Boston Properties, Inc. and the senior debt securities of Boston Properties Limited Partnership, unless the context

requires otherwise. When we refer to “subordinated debt securities” in this prospectus, we mean both the subordinated debt securities of Boston Properties, Inc. and the subordinated debt securities of Boston Properties Limited Partnership, unless the context requires otherwise. When we refer to “debt securities” in this prospectus, we mean both the senior debt securities and the subordinated debt securities, unless the context requires otherwise.

If we issue debt securities at a discount from their principal amount, then, for purposes of calculating the aggregate initial offering price of the offered securities issued under this prospectus, we will include only the initial offering price of the debt securities and not the principal amount of the debt securities.

We have summarized below the material provisions of the indentures and the debt securities, or indicated which material provisions will be described in the related prospectus supplement. The prospectus supplement relating to any particular securities offered will describe the specific terms of the securities, which may be in addition to or different from the general terms summarized in this prospectus. Because the summary in this prospectus and in any prospectus supplement does not contain all of the information that you may find useful, you should read the documents relating to the securities that are described in this prospectus or in any applicable prospectus supplement. Please read “Where You Can Find More Information” beginning on page 2 to find out how you can obtain a copy of those documents.

The Senior Debt Indenture and the Subordinated Debt Indenture of Boston Properties, Inc.

The senior debt securities of Boston Properties, Inc. will be issued under an indenture, dated as of a date prior to such issuance, between Boston Properties, Inc. as the issuer of the debt securities, Boston Properties Limited Partnership as the guarantor of the debt securities, if applicable, and The Bank of New York Trust Company, N.A., as trustee, as amended or supplemented from time to time. The subordinated debt securities of Boston Properties, Inc. will be issued under a separate indenture, dated as of a date prior to such issuance, between Boston Properties, Inc. as the issuer of the debt securities, Boston Properties Limited Partnership as the guarantor of the debt securities, if applicable, and The Bank of New York Trust Company, N.A., as trustee, as amended or supplemented from time to time. The indentures will be subject to and governed by the Trust Indenture Act of 1939. We included copies of the indentures as exhibits to our registration statement and they are incorporated into this prospectus by reference. Except as otherwise indicated, the terms of the indentures are identical.

Boston Properties Limited Partnership may, under each indenture, guarantee (either fully and unconditionally or in a limited manner) the due and punctual payment of principal of, and premium, if any, and interest on, one or more series or debt securities of Boston Properties, Inc. See “Description of Boston Properties Limited Partnership Guarantee” below for more information. If such debt securities are so guaranteed, the existence and terms of such guarantee will be set forth in the applicable prospectus supplement.

The Senior Debt Indenture and the Subordinated Debt Indenture of Boston Properties Limited Partnership

The senior debt securities of Boston Properties Limited Partnership will be issued under an indenture, dated as of December 13, 2002, between us and The Bank of New York Trust Company, N.A., as trustee, as amended or supplemented from time to time. The subordinated debt securities of Boston Properties Limited Partnership will be issued under a separate indenture, dated as of a date prior to such issuance, between us and The Bank of New York Trust Company, N.A., as trustee, as amended or supplemented from time to time. The indentures will be subject to and governed by the Trust Indenture Act of 1939. We included copies of the indentures as exhibits to our registration statement and they are incorporated into this prospectus by reference. Except as otherwise indicated, the terms of the indentures are identical.

General

The indentures:

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do not limit the amount of debt securities that we may issue;

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allow us to issue debt securities with terms different from those of the debt securities previously issued under the indenture;

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allow us to issue debt securities in one or more series;

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do not require us to issue all of the debt securities of a series at the same time;

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allow us to reopen a series to issue additional debt securities without the consent of the holders of the debt securities of such series; and

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provide that the debt securities will be unsecured.

Except as described under “Description of Debt Securities—Merger, Consolidation or Sale of Assets” beginning on page 19 or as may be set forth in the applicable prospectus supplement, the debt securities will not contain any provisions that (1) would limit our ability to incur indebtedness or (2) would afford holders of debt securities protection in the event of (a) a highly leveraged or similar transaction involving Boston Properties, Inc., Boston Properties Limited Partnership or any of their respective affiliates or (b) a change of control or reorganization, restructuring, merger or similar transaction involving us that may adversely affect the holders of the debt securities. In the future, we may enter into transactions, such as the sale of all or substantially all of our assets or a merger or consolidation, that may have an adverse effect on our ability to service our indebtedness, including the debt securities, by, among other things, substantially reducing or eliminating our assets. Neither governing law, nor our governing instruments, define the term “substantially all” as it relates to the sale of assets. Consequently, to determine whether a sale of “substantially all” of our assets has occurred, a holder of debt securities must review the financial and other information that we have disclosed to the public.

Each indenture provides that we may, but need not, designate more than one trustee under an indenture. Any trustee under an indenture may resign or be removed and a successor trustee may be appointed to act with respect to the series of debt securities administered by the resigning or removed trustee. If two or more persons are acting as trustee with respect to different series of debt securities, each trustee shall be a trustee of a trust under the applicable indenture separate and apart from the trust administered by any other trustee. Except as otherwise indicated in this prospectus, any action described in this prospectus to be taken by each trustee may be taken by each trustee with respect to, and only with respect to, the one or more series of debt securities for which it is trustee under the applicable indenture.

As used in this prospectus, the term “debt securities” includes the debt securities being offered by this prospectus and all other debt securities issued by Boston Properties, Inc. or Boston Properties Limited Partnership under the indentures. When we refer to the indenture or the trustee with respect to any debt securities of Boston Properties, Inc. or Boston Properties Limited Partnership, we mean the indenture under which those debt securities are issued and the trustee under that indenture.

Information in the Prospectus Supplement

When we refer to a series of debt securities, we mean a series issued under the applicable indenture. When we refer to a prospectus supplement, we mean the prospectus supplement describing the specific terms of the debt securities of a particular series being offered. The terms used in any prospectus supplement have the meanings described in this prospectus, unless otherwise specified.

We will describe most of the financial and other specific terms of a particular series of debt securities being offered, including the terms of any guarantee, if applicable, whether it be a series of the senior debt securities or subordinated debt securities, in a prospectus supplement accompanying this prospectus. Those terms may vary from the terms described here.

The applicable prospectus supplement will also contain the terms of a given offering, the initial offering price and our net proceeds. Where applicable, a prospectus supplement will also describe any material U.S. federal income tax considerations relating to the debt securities offered and indicate whether the securities offered are or will be listed on any securities exchange.

Disclosure of the specific terms of a particular series of debt securities in the applicable prospectus supplement, may include some or all of the following:

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whether the issuer of the debt securities is Boston Properties Inc. or Boston Properties Limited Partnership;

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the title of the debt securities;

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whether they are senior debt securities or subordinated debt securities and, if they are subordinated debt securities, any changes in the subordination provisions described in this prospectus applicable to those subordinated debt securities;

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the aggregate principal amount of the debt securities being offered, the aggregate principal amount of the debt securities outstanding as of the most recent practicable date and any limit on their aggregate principal amount, including the aggregate principal amount of debt securities authorized;

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the stated maturity;

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the price at which the debt securities will be issued, expressed as a percentage of the principal amount, and the original issue date;

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the portion of the principal payable upon declaration of acceleration of the maturity, if other than the principal amount;

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the date or dates, or the method for determining the date or dates, on which the principal of the debt securities will be payable;

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the fixed or variable interest rate or rates of the debt securities, or the method by which the interest rate or rates is determined;

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the date or dates, or the method for determining the date or dates, from which interest will accrue;

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the dates on which interest will be payable;

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the record dates for interest payment dates, or the method by which we will determine those dates;

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the persons to whom interest will be payable;

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the basis upon which interest will be calculated if other than that of a 360-day year of twelve 30-day months;

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any make-whole amount, which is the amount in addition to principal and interest that is required to be paid to the holder of a debt security as a result of any optional redemption or accelerated payment of such debt security, or the method for determining the make-whole amount;

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whether the debt securities may be converted into, in the case of debt securities of Boston Properties, Inc., or exchanged for, in the case of debt securities of Boston Properties Limited Partnership, common stock or preferred stock of Boston Properties, Inc. or other securities, the terms on which such conversion or exchange may occur, including whether such conversion or exchange is mandatory, at the option of the holder or at our option, the period during which such conversion or exchange may occur, the initial conversion or exchange price or rate, and the circumstances or manner in which the shares of common stock or preferred stock issuable upon conversion or exchange may be adjusted or calculated according to the market price of Boston Properties, Inc. common stock or preferred stock or such other securities or other applicable parameters;

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if the debt securities are issued by Boston Properties, Inc., whether Boston Properties Limited Partnership will guarantee the due and punctual payment of principal of, premium, if any, and interest on the debt securities and the extent of any such guarantee, and if so, whether such guarantee will be unsecured and unsubordinated or subordinated to other indebtedness of Boston Properties Limited Partnership;

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the place or places where the principal of, and any premium (or make-whole amount) and interest on, the debt securities will be payable;

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where the debt securities may be surrendered for registration of transfer or exchange;

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where notices or demands to or upon us in respect of the debt securities and the applicable indenture may be served;

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the times, prices and other terms and conditions upon which we may redeem the debt securities;

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any obligation we have to redeem, repay or purchase the debt securities pursuant to any sinking fund or analogous provision or at the option of holders of the debt securities, and the times and prices at which we must redeem, repay or purchase the debt securities as a result of such an obligation;

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any deletions from, modifications of, or additions to our events of default or covenants, and any change in the right of any trustee or any of the holders to declare the principal amount of any of such debt securities due and payable;

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the denominations in which the debt securities will be issuable, if other than denominations of $1,000 and any integral multiple of $1,000;

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the currency or currencies in which the debt securities are denominated and in which principal and/or interest is payable if other than United States dollars, which may be a foreign currency or units of two or more foreign currencies or a composite currency or currencies, and the terms and conditions relating thereto, and the manner of determining the equivalent of such foreign currency in United States dollars;

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whether the principal of, and any premium (or make-whole amount) or interest on, the debt securities of the series are to be payable, at our election or at the election of a holder, in a currency or currencies other than that in which the debt securities are denominated or stated to be payable, and other related terms and conditions;

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whether the amount of payments of principal of, and any premium (or make-whole amount) or interest on, the debt securities may be determined according to an index, formula or other method and how such amounts will be determined;

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whether the debt securities will be in registered form, bearer form or both and (1) if in registered form, the person to whom any interest shall be payable, if other than the person in whose name the security is registered at the close of business on the regular record date for such interest, or (2) if in bearer form, the manner in which, or the person to whom, any interest on the security shall be payable if otherwise than upon presentation and surrender upon maturity;

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the identity of the depository for securities in registered form, if such series are to be issuable as a global security;

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any restrictions applicable to the offer, sale or delivery of securities in bearer form and the terms upon which securities in bearer form of the series may be exchanged for securities in registered form of the series and vice versa if permitted by applicable laws and regulations;

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whether any debt securities of the series are to be issuable initially in temporary global form and whether any debt securities of the series are to be issuable in permanent global form with or without coupons and, if so, whether beneficial owners of interests in any such permanent global security may or shall be required to exchange their interests for other debt securities of the series, and the manner in which interest shall be paid;

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the date as of which any debt securities in bearer form or in temporary global form shall be dated if other than the original issuance date of the first security of the series to be issued;

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the applicability, if any, of the defeasance and covenant defeasance provisions described in this prospectus or in the applicable indenture;

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whether and under what circumstances we will pay any additional amounts on the debt securities in respect of any tax, assessment or governmental charge and, if so, whether we will have the option to redeem the debt securities in lieu of making such a payment;

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the circumstances, if any, under which beneficial owners of interests in the global security may obtain definitive debt securities and the manner in which payments on a permanent global debt security will be made if any debt securities are issuable in temporary or permanent global form;

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any provisions granting special rights to holders of securities upon the occurrence of such events as specified in the applicable prospectus supplement;

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the name of the applicable trustee and the nature of any material relationship with us or with any of our affiliates, and the percentage of debt securities of the class necessary to require the trustee to take action; and

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any other terms of such debt securities not inconsistent with the provisions of the applicable indenture.

Original Issue Discount Securities

We may issue debt securities at a discount below their principal amount and provide for less than the entire principal amount thereof to be payable upon declaration of acceleration of the maturity thereof. We will refer to any such debt securities throughout this prospectus as “original issue discount securities.” A fixed rate debt security, a floating rate debt security or an indexed debt security may be an original issue discount security. The applicable prospectus supplement will describe the material federal income tax consequences and other relevant considerations applicable to original issue discount securities.

Fixed Rate Debt Securities

We may issue fixed rate debt securities. A debt security of this type will bear interest at a fixed rate described in the applicable prospectus supplement. This type includes zero coupon debt securities, which bear no interest and are instead issued at a price usually significantly lower than the principal amount. Each fixed rate debt security, except any zero coupon debt security, will bear interest from its original issue date or from the most recent date to which interest on the debt security has been paid or made available for payment. Interest will accrue on the principal of a fixed rate debt security at the fixed yearly rate stated in the applicable prospectus supplement, until the principal is paid or made available for payment or the debt security is exchanged. Each payment of interest due on an interest payment date or the date of maturity will include interest accrued from and including the last date to which interest has been paid, or made available for payment, or from the issue date if none has been paid or made available for payment, to but excluding the interest payment date or the date of maturity. Unless otherwise disclosed in the applicable prospectus supplement, we will compute interest on fixed rate debt securities on the basis of a 360-day year of twelve 30-day months.

Floating Rate Debt Securities

We may issue floating rate debt securities. A debt security of this type will bear interest at rates that are determined by reference to an interest rate formula. In some cases, the rates may also be adjusted by adding or subtracting a spread or multiplying by a spread multiplier and may be subject to a minimum rate or a maximum rate. If a debt security is a floating rate debt security, the formula and any adjustments that apply to the interest rate will be specified in the applicable prospectus supplement.

Each floating rate debt security will bear interest from its original issue date or from the most recent date to which interest on the debt security has been paid or made available for payment. Interest will accrue on the principal of a floating rate debt security at the yearly rate determined according to the interest rate formula stated in the applicable prospectus supplement, until the principal is paid or made available for payment or the security is exchanged.

Calculations relating to floating rate debt securities will be made by the calculation agent, an institution that we appoint as our agent for this purpose. The prospectus supplement for a particular floating rate debt security will name the institution that we have appointed to act as the calculation agent for that debt security as of its original issue date. We may appoint a different institution to serve as calculation agent from time to time after the original issue date of the debt security without your consent and without notifying you of the change.

For each floating rate debt security, the calculation agent will determine, on the corresponding interest calculation or determination date, as described in the applicable prospectus supplement, the interest rate that takes effect on each interest reset date. In addition, the calculation agent will calculate the amount of interest that has accrued during each interest period—i.e., the period from and including the original issue date, or the last date to which interest has been paid or made available for payment, to but excluding the payment date. For each interest period, the calculation agent will calculate the amount of accrued interest by multiplying the face or other specified amount of the floating rate debt security by an accrued interest factor for the interest period. This factor will equal the sum of the interest factors calculated for each day during the interest period. The interest factor for each day will be expressed as a decimal and will be calculated by dividing the interest rate, also expressed as a decimal, applicable to that day by 360 or by the actual number of days in the year, as specified in the applicable prospectus supplement.

Upon the request of the holder of any floating rate debt security, the calculation agent will provide for that debt security the interest rate then in effect—and, if determined, the interest rate that will become effective on the next interest reset date. The calculation agent’s determination of any interest rate, and its calculation of the amount of interest for any interest period, will be final and binding in the absence of manifest error.

All percentages resulting from any calculation relating to a debt security will be rounded upward or downward, as appropriate, to the next higher or lower one hundred-thousandth of a percentage point, e.g., 9.876541% (or .09876541) being rounded down to 9.87654% (or .0987654) and 9.876545% (or .09876545) being rounded up to 9.87655% (or .0987655). All amounts used in or resulting from any calculation relating to a floating rate debt security will be rounded upward or downward, as appropriate, to the nearest cent, in the case of U.S. dollars, or to the nearest corresponding hundredth of a unit, in the case of a currency other than U.S. dollars, with one-half cent or one-half of a corresponding hundredth of a unit or more being rounded upward.

In determining the base rate that applies to a floating rate debt security during a particular interest period, the calculation agent may obtain rate quotes from various banks or dealers active in the relevant market, as described in the applicable prospectus supplement. Those reference banks and dealers may include the calculation agent itself and its affiliates, as well as any underwriter, dealer or agent participating in the distribution of the relevant floating rate debt securities and its affiliates.

Indexed Debt Securities

We may issue indexed debt securities. Payments of principal of, and premium and interest on, indexed debt securities are determined with reference to the rate of exchange between the currency or currency unit in which the debt security is denominated and any other currency or currency unit specified by us, to the relationship between two or more currencies or currency units or by other similar methods or formulas specified in the prospectus supplement. A debt security of this type provides that the principal amount payable at its maturity, and the amount of interest payable on an interest payment date, will be determined by reference to:

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securities of one or more issuers;

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one or more currencies;

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one or more commodities;

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any other financial, economic or other measure or instrument, including the occurrence or non-occurrence of any event or circumstance; or

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one or more indices or baskets of the items described above.

If you are a holder of an indexed debt security, you may receive an amount at maturity that is greater than or less than the face amount of your debt security depending upon the value of the applicable index at maturity. The value of the applicable index will fluctuate over time.

We will provide you with more information in the applicable prospectus supplement regarding any deletions, modifications, or additions to the events of default or covenants that are described below, including any addition of a covenant or other provision providing event risk or similar protection.

Amounts That We May Issue

None of the indentures limit the aggregate amount of debt securities that we may issue or the number of series or the aggregate amount of any particular series. In addition, the indentures and the debt securities do not limit either Boston Properties, Inc.’s or Boston Properties Limited Partnership’s ability to incur other indebtedness or to issue other securities, unless otherwise described in the prospectus supplement relating to any series of debt securities. Also, neither Boston Properties, Inc. nor Boston Properties Limited Partnership are subject to financial or similar restrictions by the terms of the debt securities, unless otherwise described in the prospectus supplement relating to any series of debt securities.

Payment

Unless we give you different information in the applicable prospectus supplement, the principal of, and any premium (or make-whole amount) and interest on, any series of the debt securities will be payable at the corporate trust office of the applicable trustee. We will provide you with the address of the trustee in the applicable prospectus supplement. We may also pay interest by mailing a check to the address of the person entitled to it as it appears in the applicable register for the debt securities or by wire transfer of funds to that person at an account maintained within the United States.

All monies that we pay to a paying agent or a trustee for the payment of the principal of, and any premium (or make-whole amount) or interest on, any debt security will be repaid to us if unclaimed at the end of two years after the obligation underlying payment becomes due and payable. After funds have been returned to us, the holder of the debt security may look only to us for payment, without payment of interest for the period which we hold the funds.

Boston Properties, Inc.’s and Boston Properties Limited Partnership’s Debt Securities Are Structurally Subordinated to Indebtedness of Boston Properties Limited Partnership and Boston Properties Limited Partnership’s Subsidiaries, Respectively

Boston Properties, Inc.’s indebtedness is structurally subordinate to debt of Boston Properties Limited Partnership, except to the extent of any guarantee of such indebtedness by Boston Properties Limited Partnership. In addition, because Boston Properties, Inc.’s assets consist principally of interests in Boston Properties Limited Partnership and because Boston Properties Limited Partnership’s assets consist principally of interests in the subsidiaries through which we own our properties and conduct our business, our right to participate as an equity holder in any distribution of assets of any of our subsidiaries upon the subsidiary’s liquidation or otherwise, and thus the ability of our security holders to benefit from the distribution, is junior to creditors of the applicable

subsidiary, except to the extent that any claims we may have as a creditor of such subsidiary are recognized. Furthermore, because some of our subsidiaries are partnerships in which we are a general partner, we may be liable for their obligations. We may also guarantee some obligations of our subsidiaries. Any liability we may have for our subsidiaries’ obligations could reduce our assets that are available to satisfy our direct creditors, including investors in our debt securities.

Form of Debt Securities

We will issue each debt security in global—i.e., book-entry—form only, unless we specify otherwise in the applicable prospectus supplement. Debt securities in book-entry form will be represented by a global security registered in the name of a depositary, which will be the holder of all the debt securities represented by that global security. Those who own beneficial interests in a global debt security will do so through participants in the depositary’s securities clearance system, and the rights of these indirect owners will be governed solely by the applicable procedures of the depositary and its participants. See “Legal Ownership and Book-Entry Issuance” below.

In addition, we will issue each debt security in fully registered form, without coupons.

Denomination, Interest, Registration and Transfer

Unless otherwise described in the applicable prospectus supplement, the debt securities of any series will be issuable in denominations of $1,000 and integral multiples of $1,000.

Subject to the limitations imposed upon debt securities that are issued in book-entry form and represented by a global security registered in the name of a depositary, a holder of debt securities of any series may:

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exchange them for any authorized denomination of other debt securities of the same series and of a like aggregate principal amount and kind upon surrender of such debt securities at the corporate trust office of the applicable trustee or at the office of any transfer agent that we designate for such purpose; and

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surrender them for registration of transfer or exchange at the corporate trust office of the applicable trustee or at the office of any transfer agent that we designate for such purpose.

Every debt security surrendered for registration of transfer or exchange must be duly endorsed or accompanied by a written instrument of transfer, and the person requesting such action must provide evidence of title and identity satisfactory to the applicable trustee or transfer agent. Payment of a service charge will not be required for any registration of transfer or exchange of any debt securities, but we or the trustee may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. If in addition to the applicable trustee, the applicable prospectus supplement refers to any transfer agent initially designated by us for any series of debt securities, we may at any time rescind the designation of any such transfer agent or approve a change in the location through which any such transfer agent acts, except that we will be required to maintain a transfer agent in each place of payment for such series. We may at any time designate additional transfer agents for any series of debt securities.

Neither we nor any trustee shall be required to:

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issue, register the transfer of or exchange debt securities of any series during a period beginning at the opening of business 15 days before the day that the notice of redemption of any debt securities selected for redemption is mailed and ending at the close of business on the day of such mailing;

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register the transfer of or exchange any debt security, or portion thereof, so selected for redemption, in whole or in part, except the unredeemed portion of any debt security being redeemed in part; and

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issue, register the transfer of or exchange any debt security that has been surrendered for repayment at the option of the holder, except the portion, if any, of such debt security not to be so repaid.

Merger, Consolidation or Sale of Assets

The indentures provide that each of Boston Properties, Inc. and Boston Properties Limited Partnership may, without the consent of the holders of any outstanding debt securities, (1) consolidate with, (2) sell, lease or convey all or substantially all of its assets to, or (3) merge with or into, any other entity provided that:

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either it is the continuing entity, or the successor entity, if other than Boston Properties, Inc. or Boston Properties Limited Partnership, as the case may be, is an entity organized and existing under the laws of the United States and assumes its obligations (A) to pay the principal of, and any premium and interest on, all of its debt securities and (B) to duly perform and observe all of its covenants and conditions contained in the applicable indenture;

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immediately after giving effect to the transaction and treating any indebtedness that becomes the obligation of Boston Properties, Inc. or Boston Properties Limited Partnership, as the case may be, or the obligation of any of our subsidiaries as having been incurred by us or by such subsidiary at the time of the transaction, no event of default under the applicable indenture, and no event which, after notice or the lapse of time, or both, would become such an event of default, occurs and continues; and

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an officers’ certificate and legal opinion covering such conditions are delivered to each trustee.

Any limitation applicable to the ability of Boston Properties Limited Partnership, in its capacity as guarantor of debt securities of any series of Boston Properties, Inc., to participate in any of the transactions described above will be set forth in the applicable prospectus supplement.

Covenants

Existence. Except as permitted under “Description of Debt Securities—Merger, Consolidation or Sale of Assets” above, the indentures require us to do or cause to be done all things necessary to preserve and keep in full force and effect our existence, rights and franchises. However, the indentures do not require us to preserve any right or franchise if the board of directors of Boston Properties, Inc. determines that any right or franchise is no longer desirable in the conduct of our business.

Maintenance of properties. If we determine that it is necessary in order to properly and advantageously carry on our business, the indentures require us to:

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cause all of our material properties used or useful in the conduct of our business or the business of any of our subsidiaries to be maintained and kept in good condition, repair and working order, normal wear and tear, casualty and condemnation excepted, and supplied with all necessary equipment; and

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cause to be made all necessary repairs, renewals, replacements, betterments and improvements thereof.

However, the indentures do not prohibit us or our subsidiaries from (1) permanently removing any property that has been condemned or suffered a casualty loss, if it is in our best interests, or (2) selling or otherwise disposing of our respective properties for value in the ordinary course of business.

Insurance. The indentures require our insurable properties to be insured against loss or damage in an amount deemed reasonable by the board of directors of Boston Properties, Inc. with insurers of recognized responsibility.

Payment of taxes and other claims. The indentures require us to pay, discharge or cause to be paid or discharged, before they become delinquent:

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all taxes, assessments and governmental charges levied or imposed on us, our subsidiaries or our subsidiaries’ income, profits or property; and

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all lawful claims for labor, materials and supplies which, if unpaid, might by law become a lien upon our or our subsidiaries’ property.

However, we will not be required to pay, discharge or cause to be paid or discharged any such tax, assessment, charge or claim whose amount, applicability or validity is being contested in good faith by appropriate proceedings.

Provision of Financial Information. The indentures require us to (1) within 15 days of each of the respective dates by which we are required to file annual reports, quarterly reports and other documents with the SEC, file copies of such reports and documents with the trustee and (2) within 30 days after the filing of such reports and documents with the Trustee, mail to all holders of debt securities, as their names and addresses appear in the applicable register for such debt securities summary of the annual reports, quarterly reports and other documents that we file with the SEC under Section 13 or Section 15(d) of the Exchange Act.

Additional covenants. The applicable prospectus supplement will set forth any additional covenants of Boston Properties, Inc. or Boston Properties Limited Partnership relating to any series of debt securities.

Events of Default, Notice and Waiver

Unless the applicable prospectus supplement states otherwise, when we refer to “events of default” as defined in the indentures with respect to any series of debt securities, we mean:

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default in the payment of any installment of interest on any debt security of such series continuing for 30 days;

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default in the payment of principal of, or any premium (or make-whole amount) on, any debt security of such series at its maturity;

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default in making any sinking fund payment as required for any debt security of such series;

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default in the performance or breach of any other covenant or warranty of Boston Properties, Inc. or Boston Properties Limited Partnership, as the case may be, contained in the indenture continuing for 60 days after written notice to Boston Properties, Inc. or Boston Properties Limited Partnership, as the case may be, as provided in the applicable indenture;

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default by Boston Properties, Inc. or Boston Properties Limited Partnership, as the case may be, under any bond, debenture, note, mortgage, indenture or other instrument under which there may be outstanding, or by which there may be secured or evidenced any recourse indebtedness for money borrowed by Boston Properties, Inc. or Boston Properties Limited Partnership, as the case may be, having an aggregate in principal amount outstanding of at least $50 million, whether such recourse indebtedness now exists or shall hereafter be created, which default either (A) constitutes a failure to pay any portion of the principal of such recourse indebtedness when due and payable at its stated maturity after the expiration of any applicable grace period with respect thereto (and without such recourse indebtedness having been discharged) or (B) resulted in such recourse indebtedness becoming or being declared due and payable prior to its stated maturity (and without such recourse indebtedness having been discharged or such acceleration having been rescinded or annulled), and in each case such default shall not have been rescinded or annulled within 10 days after written notice of such default has been received by Boston Properties, Inc. or Boston Properties Limited Partnership, as the case may be, as provided in the applicable indenture;

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certain events of bankruptcy, insolvency or reorganization of Boston Properties, Inc., Boston Properties Limited Partnership or any subsidiary of Boston Properties Limited Partnership that is an obligor or guarantor of any indebtedness that is also recourse indebtedness of Boston Properties, Inc. or Boston Properties Limited Partnership having an aggregate principal amount outstanding of at least $50 million; and

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any other event of default provided with respect to a particular series of debt securities.

If an event of default occurs and is continuing with respect to debt securities of any series outstanding, then the applicable trustee or the holders of 25% or more in principal amount of the debt securities of that series will have the right to declare the principal amount of all the debt securities of that series to be due and payable. If the debt securities of that series are original issue discount securities or indexed securities, then the applicable trustee or the holders of 25% or more in principal amount of the debt securities of that series will have the right to declare the portion of the principal amount as may be specified in the terms thereof to be due and payable. However, at any time after such a declaration of acceleration has been made, but before a judgment or decree for payment of the money due has been obtained by the applicable trustee, the holders of at least a majority in principal amount of outstanding debt securities of such series or of all debt securities then outstanding under the applicable indenture may rescind and annul such declaration and its consequences if:

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we have deposited with the applicable trustee all required payments of the principal, any premium (or make-whole amount), and interest, plus applicable fees, expenses, disbursements and advances of the applicable trustee; and

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all events of default, other than the non-payment of accelerated principal, or a specified portion thereof, and any premium (or make-whole amount), have been cured or waived.

The indentures also provide that the holders of at least a majority in principal amount of the outstanding debt securities of any series or of all debt securities then outstanding under the applicable indenture may on behalf of all holders waive any past default with respect to such series and its consequences, except a default:

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in the payment of the principal, any premium (or make-whole amount) or interest;

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in respect of a covenant or provision contained in the applicable indenture that cannot be modified or amended without the consent of the holder of the outstanding debt security that is affected by the default; or

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in respect of a covenant or provision for the benefit or protection of the trustee, without its express written consent.

The indentures require each trustee to give notice to the holders of debt securities within 90 days of a default unless such default has been cured or waived. However, the trustee may withhold notice if specified responsible officers of such trustee consider such withholding to be in the interest of the holders of debt securities. The trustee may not withhold notice of a default in the payment of principal, any premium or interest on any debt security of such series or in the payment of any sinking fund installment in respect of any debt security of such series.

The indentures provide that holders of debt securities of any series may not institute any proceedings, judicial or otherwise, with respect to such indenture or for any remedy under the indenture, unless the trustee fails to act for a period of 60 days after the trustee has received a written request to institute proceedings in respect of an event of default from the holders of 25% or more in principal amount of the outstanding debt securities of such series, as well as an offer of indemnity reasonably satisfactory to the trustee. However, this provision will not prevent any holder of debt securities from instituting suit for the enforcement of payment of the principal of, and any premium (or make-whole amount) and interest on, such debt securities at the respective due dates thereof.

The indentures provide that, subject to provisions in each indenture relating to its duties in the case of a default, a trustee has no obligation to exercise any of its rights or powers at the request or direction of any holders of any series of debt securities then outstanding under the indenture, unless the holders have offered to the trustee reasonable security or indemnity. The holders of at least a majority in principal amount of the outstanding debt securities of any series or of all debt securities then outstanding under an indenture shall have the right to direct the time, method and place of conducting any proceeding for any remedy available to the applicable trustee, or of exercising any trust or power conferred upon such trustee. However, a trustee may refuse to follow any direction which:

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is in conflict with any law or the applicable indenture;

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may involve the trustee in personal liability; or

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may be unduly prejudicial to the holders of debt securities of the series not joining the proceeding.

Within 120 days after the close of each fiscal year, we will be required to deliver to each trustee a certificate, signed by one of our several specified officers stating whether or not that officer has knowledge of any default under the applicable indenture. If the officer has knowledge of any default, the notice must specify the nature and status of the default.

Modification of the Indentures

The indentures provide that modifications and amendments may be made only with the consent of the affected holders of at least a majority in principal amount of all outstanding debt securities issued under that indenture. However, no such modification or amendment may, without the consent of the holders of the debt securities affected by the modification or amendment:

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change the stated maturity of the principal of, or any premium (or make-whole amount) on, or any installment of principal of or interest on, any such debt security;

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reduce the principal amount of, the rate or amount of interest on or any premium (or make-whole amount) payable on redemption of any such debt security;

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reduce the amount of principal of an original issue discount security that would be due and payable upon declaration of acceleration of the maturity thereof or would be provable in bankruptcy, or adversely affect any right of repayment of the holder of any such debt security;

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change the place of payment or the coin or currency for payment of principal of, or any premium (or make-whole amount) or interest on, any such debt security;

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impair the right to institute suit for the enforcement of any payment on or with respect to any such debt security;

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reduce the percentage in principal amount of any outstanding debt securities necessary to modify or amend the applicable indenture with respect to such debt securities, to waive compliance with particular provisions thereof or defaults and consequences thereunder or to reduce the quorum or voting requirements set forth in the applicable indenture; and

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modify any of the foregoing provisions or any of the provisions relating to the waiver of particular past defaults or covenants, except to increase the required percentage to effect such action or to provide that some of the other provisions may not be modified or waived without the consent of the holder of such debt security.

The holders of a majority in aggregate principal amount of the outstanding debt securities of each series may, on behalf of all holders of debt securities of that series, waive, insofar as that series is concerned, our compliance with material restrictive covenants of the applicable indenture.

Boston Properties, Inc. or Boston Properties Limited Partnership and the respective trustee may make modifications and amendments of an indenture without the consent of any holder of debt securities for any of the following purposes:

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to evidence the succession of another person to us as obligor under such indenture;

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to add to the covenants of Boston Properties, Inc. or Boston Properties Limited Partnership for the benefit of the holders of all or any series of debt securities or to surrender any right or power conferred upon us in such indenture;

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to add events of default for the benefit of the holders of all or any series of debt securities;

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to add or change any provisions of an indenture (1) to facilitate the issuance of, or to change or eliminate restrictions on the payment of principal of, or premium (or make-whole amount) or interest on, debt securities in bearer form, or (2) to permit or facilitate the issuance of debt securities in uncertificated form, provided that such action shall not adversely affect the interests of the holders of the debt securities of any series in any material respect;

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to change or eliminate any provisions of an indenture, provided that any such change or elimination shall become effective only when there are no debt securities outstanding of any series created prior thereto which are entitled to the benefit of such provision;

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to secure the debt securities;

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to establish the form or terms of debt securities of any series;

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to provide for the acceptance of appointment by a successor trustee or facilitate the administration of the trusts under an indenture by more than one trustee;

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to cure any ambiguity, defect or inconsistency in an indenture, provided that such action shall not adversely affect the interests of holders of debt securities of any series issued under such indenture; and

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to supplement any of the provisions of an indenture to the extent necessary to permit or facilitate defeasance and discharge of any series of such debt securities, provided that such action shall not adversely affect the interests of the holders of the outstanding debt securities of any series.

Voting

The indentures provide that in determining whether the holders of the requisite principal amount of outstanding debt securities of a series have given any request, demand, authorization, direction, notice, consent or waiver under the indentures or whether a quorum is present at a meeting of holders of debt securities:

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the principal amount of an original issue discount security that shall be deemed to be outstanding shall be the amount of the principal thereof that would be due and payable as of the date of such determination upon declaration of acceleration of the maturity thereof;

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the principal amount of any debt security denominated in a foreign currency that shall be deemed outstanding shall be the United States dollar equivalent, determined on the issue date for such debt security, of the principal amount or, in the case of an original issue discount security, the United States dollar equivalent on the issue date of such debt security of the amount determined as provided in the preceding bullet point;

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the principal amount of an indexed security that shall be deemed outstanding shall be the principal face amount of such indexed security at original issuance, unless otherwise provided for such indexed security under such indenture; and

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debt securities owned by us or any other obligor upon the debt securities or by any affiliate of ours or of such other obligor shall be disregarded.

The indentures contain provisions for convening meetings of the holders of debt securities of a series. A meeting will be permitted to be called at any time by the applicable trustee, and also, upon request, by us or the holders of at least 25% in principal amount of the outstanding debt securities of such series, in any such case upon notice given as provided in such indenture. Except for any consent that must be given by the holder of each debt security affected by the modifications and amendments of an indenture described above, any resolution presented at a meeting or adjourned meeting duly reconvened at which a quorum is present may be adopted by the affirmative vote of the holders of a majority of the aggregate principal amount of the outstanding debt securities of that series represented at such meeting.

Notwithstanding the preceding paragraph, except as referred to above, any resolution relating to a request, demand, authorization, direction, notice, consent, waiver or other action that may be made, given or taken by the holders of a specified percentage, which is less than a majority, of the aggregate principal amount of the outstanding debt securities of a series may be adopted at a meeting or adjourned meeting duly reconvened at which a quorum is present by the affirmative vote of such specified percentage.

Any resolution passed or decision taken at any properly held meeting of holders of debt securities of any series will be binding on all holders of such series. The quorum at any meeting called to adopt a resolution, and at any reconvened meeting, will be persons holding or representing a majority in principal amount of the outstanding debt securities of a series. However, if any action is to be taken relating to a consent or waiver which may be given by the holders of at least a specified percentage in principal amount of the outstanding debt securities of a series, the persons holding such percentage will constitute a quorum.

Notwithstanding the foregoing provisions, the indentures provide that if any action is to be taken at a meeting with respect to any request, demand, authorization, direction, notice, consent, waiver and other action that such indenture expressly provides may be made, given or taken by the holders of a specified percentage in principal amount of all outstanding debt securities affected by such action, or of the holders of such series and one or more additional series:

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there shall be no minimum quorum requirement for such meeting; and

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the principal amount of the outstanding debt securities of such series that vote in favor of such request, demand, authorization, direction, notice, consent, waiver or other action shall be taken into account in determining whether such request, demand, authorization, direction, notice, consent, waiver or other action has been made, given or taken under such indenture.

Subordination Provisions

Holders of subordinated debt securities should recognize that contractual provisions in the applicable subordinated debt indenture may prohibit the issuer of the subordinated debt securities, whether Boston Properties, Inc. or Boston Properties Limited Partnership, as the case may be, from making payments on those securities. Subordinated debt securities are subordinate and junior in right of payment, to the extent and in the manner stated in the applicable subordinated debt indenture or in the provisions of the applicable debt securities, to all of the issuer’s senior debt, as defined in the applicable subordinated debt indenture, including all debt securities the issuer has issued and will issue under the applicable senior debt indenture.

The applicable subordinated debt indentures define “senior debt” as the principal of and premium, if any, and interest on all indebtedness of the issuer, other than the subordinated debt securities, whether outstanding on the date of the indenture or thereafter created, incurred or assumed, which is (a) for money borrowed, (b) evidenced by a note or similar instrument given in connection with the acquisition of any businesses, properties or assets of any kind or (c) obligations of the issuer, as lessee under leases required to be capitalized on the balance sheet of the lessee under generally accepted accounting principles or leases of property or assets made as part of any sale and lease-back transaction to which the issuer is a party. For the purpose of this definition, “interest” includes interest accruing on or after the filing of any petition in bankruptcy or for reorganization relating to the issuer, to the extent that the claim for post-petition interest is allowed in the proceeding. Also for the purpose of this definition, “indebtedness of the issuer” includes indebtedness of others guaranteed by the issuer and amendments, renewals, extensions, modifications and refundings of any indebtedness or obligation of the kinds described in the first sentence of this paragraph. However, “indebtedness of the issuer” for the purpose of this definition does not include any indebtedness or obligation if the instrument creating or evidencing the indebtedness or obligation, or under which the indebtedness or obligation is outstanding, provides that the indebtedness or obligation is not superior in right of payment to the subordinated debt securities.

The subordinated debt indentures provides that, unless all principal of and any premium or interest on the senior debt has been paid in full, no payment or other distribution may be made in respect of any subordinated debt securities in the following circumstances:

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in the event of any insolvency or bankruptcy proceedings, or any receivership, liquidation, reorganization or other similar proceeding involving the issuer or its assets;

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in the event of any liquidation, dissolution or other winding up of the issuer, whether voluntary or involuntary and whether or not involving insolvency or bankruptcy;

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in the event of any assignment for the benefit of creditors or any other marshalling of assets and liabilities of the issuer;

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if any subordinated debt securities of issuer have been declared due and payable before their stated maturity;

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in the event and during the continuation of any default in the payment of principal, premium or interest on any senior debt beyond any applicable grace period or if any event of default with respect to any senior debt of the issuer has occurred and is continuing, permitting the holders of that senior debt of the issuer or a trustee to accelerate the maturity of that senior debt, unless the event of default has been cured or waived or ceased to exist and any related acceleration has been rescinded; or

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if any judicial proceeding is pending with respect to a payment default or an event of default described in the immediately preceding clause.

If the trustee under the applicable subordinated debt indenture or any holders of the subordinated debt securities receive any payment or distribution that they know is prohibited under the subordination provisions, then the trustee or the holders will have to repay that money to the holders of the senior debt.

Even if the subordination provisions prevent Boston Properties, Inc. or Boston Properties Limited Partnership from making any payment when due on the subordinated debt securities of any series, Boston Properties, Inc. or Boston Properties Limited Partnership, as the case may be, will be in default on its obligations under that series if it does not make the payment when due. This means that the trustee under the applicable subordinated debt indenture and the holders of that series can take action against us, but they will not receive any money until the claims of the holders of senior debt have been fully satisfied.

If this prospectus is being delivered in connection with the offering of a series of subordinated securities, the accompanying prospectus supplement or the information incorporated in this prospectus by reference will set forth the approximate amount of senior debt outstanding as of the end of our most recent fiscal quarter.

Modification of Subordination Provisions

Neither Boston Properties, Inc. nor Boston Properties Limited Partnership may amend the subordinated debt indenture governing any series of subordinated debt securities it has already issued to alter the subordination of any outstanding subordinated debt securities without the written consent of each holder of senior debt then outstanding who would be adversely affected by such amendment. In addition, neither Boston Properties, Inc. nor Boston Properties Limited Partnership may modify the subordination provisions of the subordinated debt indenture governing any series of subordinated debt securities it has already issued in a manner that would adversely affect the outstanding subordinated debt securities of any one or more series in any material respect, without the consent of the holders of a majority in aggregate principal amount of all affected series, voting together as one class.

Discharge, Defeasance and Covenant Defeasance

Unless otherwise indicated in the applicable prospectus supplement, the indentures allow us to discharge our obligations to holders of any series of debt securities issued under any indenture when:

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either (1) all securities of such series have already been delivered to the applicable trustee for cancellation; or (2) all securities of such series have not already been delivered to the applicable trustee for cancellation but (A) have become due and payable, (B) will become due and payable within one year, or (C) if redeemable at our option, are to be redeemed within one year, and we have irrevocably deposited with the applicable trustee, in trust, funds in such currency or currencies, currency unit or units or composite currency or currencies in which such debt securities are payable, an amount sufficient to pay the entire indebtedness on such debt securities in respect of principal (and any premium or make-whole amount) and interest to the date of such deposit if such debt securities have become due and payable or, if they have not, to the stated maturity or redemption date;

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we have paid or caused to be paid all other sums payable; and

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we have delivered to the trustee an officers’ certificate and an opinion of counsel stating the conditions to discharging the debt securities have been satisfied.

Unless otherwise indicated in the applicable prospectus supplement, the indentures provide that, upon our irrevocable deposit with the applicable trustee, in trust, of an amount, in such currency or currencies, currency unit or units or composite currency or currencies in which such debt securities are payable at stated maturity, or government obligations, or both, applicable to such debt securities, which through the scheduled payment of principal and interest in accordance with their terms will provide money in an amount sufficient to pay the principal of, and any premium (or make-whole amount) and interest on, such debt securities, and any mandatory sinking fund or analogous payments thereon, on the scheduled due dates therefor, we may elect either:

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to defease and be discharged from any and all obligations with respect to such debt securities; or

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to be released from our obligations with respect to such debt securities under the applicable indenture or, if provided in the applicable prospectus supplement, our obligations with respect to any other covenant, and any omission to comply with such obligations shall not constitute an event of default with respect to such debt securities.

Notwithstanding the above, we may not elect to defease and be discharged from the obligation to pay any additional amounts upon the occurrence of particular events of tax, assessment or governmental charge with respect to payments on such debt securities and the obligations to register the transfer or exchange of such debt securities, to replace temporary or mutilated, destroyed, lost or stolen debt securities, to maintain an office or agency in respect of such debt securities, or to hold monies for payment in trust.

The indentures only permit us to establish the trust described in the paragraph above if, among other things, we have delivered to the applicable trustee an opinion of counsel to the effect that the holders of such debt securities will not recognize income, gain or loss for federal income tax purposes as a result of such defeasance or covenant defeasance and will be subject to federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such defeasance or covenant defeasance had not occurred. Such opinion of counsel, in the case of defeasance, will be required to refer to and be based upon a ruling received from or published by the Internal Revenue Service or a change in applicable federal income tax law occurring after the date of the indenture. In the event of such defeasance, the holders of such debt securities would be able to look only to such trust fund for payment of principal, any premium (or make-whole amount), and interest.

When we use the term “government obligations,” we mean securities that are:

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direct obligations of the United States or the government that issued the foreign currency in which the debt securities of a particular series are payable, for the payment of which its full faith and credit is pledged; or

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obligations of a person controlled or supervised by and acting as an agency or instrumentality of the United States or other government that issued the foreign currency in which the debt securities of such series are payable, the payment of which is unconditionally guaranteed as a full faith and credit obligation by the United States or such other government, which are not callable or redeemable at the option of the issuer thereof and shall also include a depository receipt issued by a bank or trust company as custodian with respect to any such government obligation or a specific payment of interest on or principal of any such government obligation held by such custodian for the account of the holder of a depository receipt. However, except as required by law, such custodian is not authorized to make any deduction from the amount payable to the holder of such depository receipt from any amount received by the custodian in respect of the government obligation or the specific payment of interest on or principal of the government obligation evidenced by such depository receipt.

Unless otherwise provided in the applicable prospectus supplement, if after we have deposited funds and/or government obligations to effect defeasance or covenant defeasance with respect to debt securities of any series, (1) the holder of a debt security of such series is entitled to, and does, elect under the terms of the applicable indenture or the terms of such debt security to receive payment in a currency, currency unit or composite currency other than that in which such deposit has been made in respect of such debt security, or (2) a conversion event occurs in respect of the currency, currency unit or composite currency in which such deposit has been made, the indebtedness represented by such debt security will be deemed to have been, and will be, fully discharged and satisfied through the payment of the principal of, and premium (or make-whole amount) and interest on, such debt security as they become due out of the proceeds yielded by converting the amount so deposited in respect of such debt security into the currency, currency unit or composite currency in which such debt security becomes payable as a result of such election or such cessation of usage based on the applicable market exchange rate.

When we use the term “conversion event,” we mean the cessation of use of:

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a currency, currency unit or composite currency both by the government of the country that issued such currency and for the settlement of transactions by a central bank or other public institutions of or within the international banking community;

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the European Currency Unit both within the European Monetary System and for the settlement of transactions by public institutions of or within the European Communities; or

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any currency unit or composite currency other than the European Currency Unit for the purposes for which it was established.

Unless otherwise provided in the applicable prospectus supplement, all payments of principal of, and premium (or make-whole amount), if any, and interest on, any debt security that is payable in a foreign currency that ceases to be used by its government of issuance shall be made in United States dollars.

In the event that (1) we effect covenant defeasance with respect to any debt securities and (2) such debt securities are declared due and payable because of the occurrence of any event of default, the amount in such currency, currency unit or composite currency in which such debt securities are payable, and government obligations on deposit with the applicable trustee, will be sufficient to pay amounts due on such debt securities at the time of their stated maturity but may not be sufficient to pay amounts due on such debt securities at the time of the acceleration resulting from such event of default. However, we would remain liable to make payments of such amounts due at the time of acceleration.

The applicable prospectus supplement may further describe the provisions, if any, permitting such defeasance or covenant defeasance, including any modifications to the provisions described above, with respect to the debt securities of or within a particular series.

Conversion or Exchange Rights

The terms and conditions, if any, on which debt securities of Boston Properties, Inc. or Boston Properties Limited Partnership are convertible into or exchangeable for shares of common stock or preferred stock of Boston Properties, Inc. or other securities will be set forth in the applicable prospectus supplement. Such terms will include the terms on which such conversion or exchange may occur, including whether such conversion or exchange is mandatory, at the option of the holder or at our option, the period or periods during which such conversion or exchange may occur, the initial conversion or exchange price or rate, the circumstances under or manner in which the number of shares of common stock or preferred stock of Boston Properties, Inc. or other securities issuable upon conversion or exchange may be adjusted or calculated according to the market price of such common stock or preferred stock of Boston Properties, Inc. or other securities or based on other parameters, and provisions affecting conversion or exchange in the event that the debt securities are redeemed.

No Recourse

No recourse under or upon any obligation, covenant or agreement contained in any indenture or the debt securities, or because of any indebtedness evidenced thereby, shall be had (1) in the case of debt securities of Boston Properties Limited Partnership, against Boston Properties, Inc. as general partner or any other past, present or future partner of Boston Properties Limited Partnership, or against any other person or entity which owns an interest, directly or indirectly, in any partner of Boston Properties Limited Partnership, or (2) in the case of any debt securities of Boston Properties, Inc. or Boston Properties Limited Partnership, against any past, present or future shareholder, partner, employee, officer or director, as such, of Boston Properties Limited Partnership or Boston Properties, Inc. or any successor under any rule of law, statute or constitutional provision or by the enforcement of any assessment or by any legal or equitable proceeding or otherwise. Each holder of debt securities waives and releases all such liability by accepting the debt securities. The waiver and release are part of the consideration for the issue of the debt securities.

Boston Properties, Inc.’s and Boston Properties Limited Partnership’s Relationship with the Trustee

The Bank of New York Trust Company, N.A. and/or its affiliates have provided commercial banking and other services for Boston Properties, Inc., Boston Properties Limited Partnership and/or their affiliates in the past and may do so in the future.

The Bank of New York Trust Company, N.A. is initially serving as the trustee for the senior debt securities and the subordinated debt securities of Boston Properties, Inc. and Boston Properties Limited Partnership. We may appoint other parties to serve as trustee or co-trustee as may be indicated in the applicable prospectus supplement. If an actual or potential event of default occurs with respect to any of the debt securities, the trustee may be considered to have a conflicting interest for purposes of the Trust Indenture Act of 1939. In that case, the trustee may be required to resign under one or more of the indentures, and the issuer of the debt securities would be required to appoint a successor trustee. For this purpose, a “potential” event of default means an event that would be an event of default if the requirements for giving the issuer of the debt securities default notice or for the default having to exist for a specific period of time were disregarded.

DESCRIPTION OF BOSTON PROPERTIES LIMITED PARTNERSHIP GUARANTEES

Boston Properties Limited Partnership may guarantee (either fully or unconditionally or in a limited manner) the due and punctual payment of the principal of, and any premium and interest on, one or more series of debt securities of Boston Properties, Inc., whether at maturity, by acceleration, redemption, repayment or otherwise, in accordance with the terms of such guarantee and the applicable indenture. In case of the failure of Boston Properties, Inc. punctually to pay any principal, premium or interest on any guaranteed debt security, Boston Properties Limited Partnership will cause any such payment to be made as it becomes due and payable, whether at maturity, upon acceleration, redemption, repayment or otherwise, and as if such payment were made by Boston Properties, Inc. The particular terms of the guarantee, if any, will be set forth in a prospectus supplement relating to the guaranteed debt securities. Any guarantee by Boston Properties Limited Partnership will be of payment only and not of collection.

DESCRIPTION OF COMMON STOCK OF BOSTON PROPERTIES, INC.

The following is a summary of the material terms and provisions of Boston Properties, Inc. common stock. It may not contain all the information that is important to you. You can access complete information by referring to the certificate of incorporation and bylaws of Boston Properties, Inc., the shareholder rights plan of Boston Properties, Inc. and the Delaware General Corporation Law. Such shareholder rights plan, certificate of incorporation and bylaws are incorporated by reference into this prospectus.

General

Under the certificate of incorporation, Boston Properties, Inc. has the authority to issue 250,000,000 shares of common stock, par value $0.01 per share. On June 30, 2007, there were:

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119,028,081 shares of Boston Properties, Inc. common stock issued and outstanding;

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20,285,414 common units of partnership interest in Boston Properties Limited Partnership issued and outstanding (other than the common units held by Boston Properties, Inc.), each of which is redeemable for one share of Boston Properties, Inc. common stock (if Boston Properties, Inc. elects to issue common stock rather than pay cash upon such redemption);

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676,752 long term incentive units of partnership interest in Boston Properties Limited Partnership issued and outstanding pursuant to the Long-Term Incentive Plan, each of which, upon the satisfaction of certain conditions, is convertible into one common unit; and

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1,277,463 Series Two preferred units of partnership interest in Boston Properties Limited Partnership issued and outstanding, each of which is currently convertible into approximately 1.312336 common units (or a total of 1,676,461 common units).

Boston Properties, Inc. may issue common stock from time to time. Boston Properties, Inc.’s board of directors must approve the amount of stock we sell and the price for which it is sold. Holders of Boston Properties, Inc. common stock do not have any preferential rights or preemptive rights to buy or subscribe for capital stock or other securities that Boston Properties, Inc. may issue. However, each outstanding share of Boston Properties, Inc. common stock currently has attached to it one preferred stock purchase right issued under the shareholder rights plan, which is summarized below. Boston Properties, Inc. common stock does not have any redemption or sinking fund provisions or any conversion rights.

All Boston Properties, Inc. common stock, when issued, will be duly authorized, fully paid and nonassessable. This means that the full price for Boston Properties, Inc. outstanding common stock will have been paid at the time of issuance and that any holder of Boston Properties, Inc. common stock will not later be required to pay Boston Properties, Inc. any additional money for Boston Properties, Inc.’s common stock.

Dividends

Subject to the preferential rights of any other shares of Boston Properties, Inc. stock and the provisions of the certificate of incorporation regarding excess stock, holders of Boston Properties, Inc. common stock may receive dividends out of assets that Boston Properties, Inc. can legally use to pay dividends when and if they are authorized and declared by the board of directors of Boston Properties, Inc. In the event Boston Properties, Inc. is liquidated, dissolved or its affairs are wound up, each common stockholder shares in the same proportion as other common stockholders out of assets that Boston Properties, Inc. can legally use to pay distributions after Boston Properties, Inc. pays or makes adequate provision for all of its known debts and liabilities.

Voting rights

Subject to the provisions of the certificate of incorporation of Boston Properties, Inc. regarding excess shares, holders of common stock will have the exclusive power to vote on all matters presented to Boston Properties, Inc. stockholders, including the election of directors, except as otherwise provided by Delaware law

or as provided with respect to any other shares of Boston Properties, Inc. stock. Holders of Boston Properties, Inc. common stock are entitled to one vote per share. There is no cumulative voting in the election of directors of Boston Properties, Inc. Generally, all matters to be voted on by stockholders must be approved by a majority, or, in the case of the election of directors, by a plurality, of the votes present in person or represented by proxy and entitled to vote at a meeting at which a quorum is present, subject to any voting rights granted to holders of any then outstanding preferred stock.

Other rights

Subject to the provisions of the certificate of incorporation of Boston Properties, Inc. regarding excess shares, all shares of Boston Properties, Inc. common stock have equal dividend, distribution, liquidation and other rights, and have no preference, appraisal or exchange rights, except for any appraisal rights provided by Delaware law.

Delaware law generally requires that Boston Properties, Inc. obtain the approval of a majority of the outstanding shares of Boston Properties, Inc. common stock that are entitled to vote before Boston Properties, Inc. may consolidate or merge with another corporation. However, Delaware law does not require that Boston Properties, Inc. seek approval of the stockholders of Boston Properties, Inc. to enter into a merger in which Boston Properties, Inc. is the surviving corporation following the merger if:

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the certificate of incorporation of Boston Properties, Inc. is not amended in any respect by the merger;

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each share of Boston Properties, Inc. stock outstanding prior to the merger is to be an identical share of stock following the merger; and

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any shares of common stock (together with any other securities convertible into shares of common stock) to be issued or delivered as a result of the merger represent in the aggregate no more than 20% of the number of shares of Boston Properties, Inc. common stock outstanding immediately prior to the merger.

Restrictions on ownership

For Boston Properties, Inc. to qualify as a real estate investment trust under the Internal Revenue Code, no more than 50% in value of Boston Properties, Inc. outstanding stock may be owned, actually or constructively, by five or fewer individuals during the last half of a taxable year. To assist Boston Properties, Inc. in meeting this requirement, it may take actions including the automatic conversion of shares in excess of this ownership restriction into excess stock to limit the ownership of the outstanding equity securities of Boston Properties, Inc., actually or constructively, by one person or entity. See “Limits on Ownership of Boston Properties, Inc. Common Stock.”

Transfer agent

The transfer agent and registrar for Boston Properties, Inc. common stock is Computershare Trust Company, N.A.

Preferred stock

Under the certificate of incorporation of Boston Properties, Inc., it has authority to issue up to 50,000,000 shares of preferred stock. Boston Properties, Inc. does not have any preferred stock outstanding as of the date of this prospectus. Boston Properties, Inc. may issue preferred stock from time to time, in one or more series, as authorized by its board of directors. Prior to issuance of shares of each series, the board of directors of Boston Properties, Inc. is required by the Delaware General Corporation Law and the certificate of incorporation of Boston Properties, Inc. to fix for each series, subject to the provisions of the certificate of incorporation regarding excess stock, the terms, preferences, conversion or other rights, voting powers, restrictions, limitations as to dividends or other distributions, qualifications and terms or conditions of redemption, as are permitted by Delaware law. The preferred stock will, when issued, be fully paid and nonassessable and will have no preemptive rights. The board of directors of Boston Properties, Inc. could authorize the issuance of preferred

stock with terms and conditions that could have the effect of discouraging a takeover or other transaction that holders of Boston Properties, Inc. common stock might believe to be in their best interests or in which holders of some, or a majority, of Boston Properties, Inc. common stock might receive a premium for their shares over the then market price of Boston Properties, Inc. common stock.

Under the certificate of incorporation of Boston Properties, Inc., it has authority to issue up to 150,000 shares of Series E junior participating cumulative preferred stock. None of the Series E junior participating cumulative preferred stock is issued or outstanding. Shares of Boston Properties, Inc. Series E junior participating cumulative preferred stock may be issued under the shareholder rights plan of Boston Properties, Inc., which is summarized below.

Shareholder rights plan

In 1997, the board of directors of Boston Properties, Inc. adopted a shareholder rights plan and entered into a shareholder rights agreement with Computershare Trust Company, N.A. (as successor to BankBoston, N.A.), as rights agent. In 2007, the board of directors of Boston Properties, Inc. determined it was in the best interests of the Company and its shareholders for the Company to extend the benefits afforded by the 1997 Rights Agreement by entering into a new shareholder rights agreement with Computershare Trust Company, N.A., as rights agent. The rights may discourage, delay or prevent hostile takeovers. They are not intended, however, to interfere with any merger or other business combination approved by the board of directors of Boston Properties, Inc.

Under the shareholder rights plan of Boston Properties, Inc., one preferred stock purchase right is attached to each outstanding share of Boston Properties, Inc. common stock. We refer to these preferred stock purchase rights as the “rights.” Each share of common stock issued in the future will also receive a right until any of the rights become exercisable. Until a right is exercised, the holder of a right does not have any additional rights as a stockholder. These rights expire on June 29, 2017, unless previously redeemed or exchanged by us as described below. These rights trade automatically with Boston Properties, Inc. common stock and will separate from the common stock and become exercisable only under the circumstances described below.

In general, the rights will separate from Boston Properties, Inc. common stock and become exercisable when the first of the following events happens:

(1) ten calendar days after a public announcement that a person or a group of affiliated or associated persons has acquired beneficial ownership of more than 15% of the sum of Boston Properties, Inc. outstanding common stock and excess stock, the date of such public announcement being referred to as a stock acquisition date; or

(2) ten business days, or such later date determined by the board of directors of Boston Properties, Inc., after the beginning of a tender offer or exchange offer that could result in a person or group beneficially owning more than 15% of the sum of Boston Properties, Inc. outstanding common stock and excess stock.

Under the shareholder rights plan of Boston Properties, Inc., shares of Boston Properties, Inc. common stock that may be issued upon redemption of outstanding common units of limited partnership interest in Boston Properties Limited Partnership are not included in the definition of beneficial ownership.

However, if a person who became a limited partner of Boston Properties Limited Partnership at the time of the initial public offering of Boston Properties, Inc. acquires beneficial ownership of more than 15% of the sum of Boston Properties, Inc. common stock and excess stock, the rights will not become exercisable unless the acquisition results in that person acquiring a percentage of the outstanding shares of the outstanding common stock of Boston Properties, Inc. plus outstanding common units of limited partnership interest of Boston Properties Limited Partnership that is greater than the percentage of outstanding shares of common stock plus outstanding common units of limited partnership interest of Boston Properties Limited Partnership that such person held at the completion of Boston Properties, Inc. initial public offering. In addition, no group of which Messrs. Zuckerman or E. Linde, any of their respective heirs, legatees or devisees, or any other person whose

beneficial ownership of shares of Boston Properties, Inc. common stock would be attributed to Mr. Zuckerman and Mr. E. Linde, respectively, under the Internal Revenue Code, will be deemed to beneficially own any of Boston Properties, Inc.’s securities owned by that person. Common units of limited partnership interest of Boston Properties Limited Partnership held by Boston Properties, Inc. are excluded in making these calculations.

If the rights become exercisable, holders of the rights will be able to purchase from Boston Properties, Inc. a unit of preferred stock equal to one ten-thousandth of a share of Boston Properties, Inc.’s Series E junior participating cumulative preferred stock at a cash exercise price of $350.00 per unit, subject to adjustment. Boston Properties, Inc. has designated 150,000 shares of Series E junior participating cumulative preferred stock and has reserved these shares for issuance under the shareholder rights plan of Boston Properties, Inc. However, all rights owned by any persons or groups triggering the event shall be void.

In the event that a stock acquisition date occurs, the rights (other than those held by the person or group triggering the stock acquisition date, whose rights will become null and void) will be exercisable for units of our Series E junior participating cumulative preferred stock having a market value of two times the exercise price of the rights.

In addition, if at any time following a stock acquisition date:

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Boston Properties, Inc. enters into a merger or other business combination transaction in which Boston Properties, Inc. is not the surviving entity;

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Boston Properties, Inc. enters into a merger or other business combination transaction in which all or part of Boston Properties, Inc. common stock is exchanged for stock or other securities of any other person or cash or any other property; or

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Boston Properties, Inc. sells, transfers or mortgages 50% or more of its assets or earning power;

then each holder of a right, other than rights held by the person or group who triggered the event, will be entitled to receive, upon exercise, common stock of the acquiring company having a market value equal to two times the exercise price of the right.

At any time on or after the date on which the rights separate and become exercisable, the board of directors of Boston Properties, Inc. may, at its option, exchange all or any part of the then outstanding and exercisable rights for shares of Boston Properties, Inc. common stock or units of Series E junior participating cumulative preferred stock at an exchange ratio of one share or one unit per right. However, the board of directors of Boston Properties, Inc. generally will not be empowered to effect an exchange at any time after any person becomes the beneficial owner of 50% or more of Boston Properties, Inc. outstanding common stock.

Boston Properties, Inc. may redeem the rights in whole, but not in part, at a price of $.01 per right at any time before the earlier of (1) the date that is ten calendar days after a stock acquisition date or (2) the expiration date of the rights plan. The rights will expire at the close of business on June 29, 2017 unless we redeem them before that date.

Boston Properties, Inc. may, in its sole discretion, amend any provision of the rights agreement until the rights become exercisable. After the rights become exercisable, Boston Properties, Inc. may, subject to specified limitations, amend the rights agreement only to cure any ambiguity, defect or inconsistency, to shorten or lengthen any time period, or to make changes that do not adversely affect the interests of the holders of the rights.

The above description of the shareholder rights plan of Boston Properties, Inc. is not intended to be a complete description. For a full description of the shareholder rights plan, you should read the rights agreement. The foregoing description of the shareholder rights plan is qualified in its entirety by reference to the rights agreement. A copy of the shareholder rights plan has been filed with the SEC and is incorporated herein by reference.

DESCRIPTION OF PREFERRED STOCK OF BOSTON PROPERTIES, INC.

This section describes the general terms and provisions of shares of Boston Properties, Inc. preferred stock that we may offer by this prospectus. Boston Properties, Inc. may issue preferred stock in one or more series; each series of preferred stock will have its own rights and preferences. We will describe in a prospectus supplement (1) the specific terms of the series of any preferred stock offered through that prospectus supplement and (2) any general terms outlined in this section that will not apply to those shares of preferred stock. This summary of terms is not complete. For additional information before you buy any preferred stock you should read the certificate of incorporation and bylaws of Boston Properties, Inc. that are in effect on the date that we offer any preferred stock, as well as any applicable amendment to our certificate of incorporation designating the terms of a series of preferred stock.

General

Under its certificate of incorporation, Boston Properties, Inc. has the authority to issue up to 50,000,000 shares of preferred stock, par value $0.01 per share. Prior to issuing shares of preferred stock of a particular series, our board of directors will determine or fix the terms of that series of preferred stock, as described below.

When we issue shares of preferred stock, they will be fully paid and nonassessable. This means the full purchase price for the outstanding preferred stock will be paid at issuance and that the purchasers of shares of preferred stock will not be required later to pay us any additional consideration for those shares. The preferred stock will have no preemptive rights to subscribe for any additional securities which we may issue in the future. This means that the purchasers of shares of preferred stock will not receive any rights, as a holder of preferred stock, to buy any portion of the securities which we may issue in the future. Because our board of directors has the power to establish the preferences and rights of each class or series of preferred stock, our board of directors may grant the holders of any series or class of preferred stock preferences, powers, and rights, voting or otherwise, senior to the rights of holders of shares of common stock. The issuance or possibility of issuance of preferred stock could have the effect of delaying or preventing a change in control of our company.

Terms

The preferred stock will have the dividend, liquidation, redemption, voting, and conversion rights described in this section unless we state otherwise in the applicable prospectus supplement. The liquidation preference is not indicative of the price at which the preferred stock will actually trade on or after the date of issuance. You should read the prospectus supplement relating to the particular series of the preferred stock for specific terms, including:

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the title and liquidation preference of such preferred stock and the number of shares offered;

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the initial offering price of such preferred stock;

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the dividend rate or rates (or method of calculation), the dividend periods, the date(s) on which dividends will be payable and whether the dividends will be cumulative or noncumulative, and, if cumulative, the dates from which the dividends will start to cumulate;

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procedures for any auction and remarketing, if any;

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any listing of such preferred stock on any securities exchange;

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any redemption or sinking fund provisions;

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any conversion or exchange provisions;

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any voting rights;

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any other specific terms, preferences, rights, limitations, or restrictions of such preferred stock;

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discussion of federal income tax considerations applicable to such preferred stock;

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relative ranking and preference of such preferred stock as to dividend rights and rights upon liquidation, dissolution, or winding up of our business;

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any limitations on issuance of any series of preferred stock ranking senior to or on a parity with such series of preferred stock as to dividend rights and rights upon liquidation, dissolution, or winding up of our business; and

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any limitations on direct or beneficial ownership and restrictions on transfer, in each case as may be appropriate to preserve our status as a REIT.

Rank

Unless we state otherwise in the applicable prospectus supplement, each series of preferred stock will, with respect to dividend rights and rights upon liquidation, dissolution, or winding up of our business, rank:

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senior to our common stock and any of our other equity securities ranking junior to such series of preferred stock;

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on a parity with all of our equity securities which according to their terms rank on a parity with such series of preferred stock; and

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junior to all of our equity securities which according to their terms rank senior to such series of preferred stock.

The term “equity securities” does not include any convertible debt securities Boston Properties, Inc. may issue.

Dividends

As a holder of shares of preferred stock, you will be entitled to receive cash dividends, if declared by our board of directors, out of our assets that we can legally use to pay dividends. The prospectus supplement relating to a particular series of preferred stock will state the dividend rate or rates (or method of calculation) and dates on which the dividends will be payable for such series. We will pay dividends to the holders of record as they appear on our stock transfer books on the record dates fixed by our board of directors.

The applicable prospectus supplement will also state whether the dividends on any series of the preferred stock are cumulative or non-cumulative. Dividends, if cumulative, will accumulate from and after the dates stated in the applicable prospectus supplement. If our board of directors does not declare a dividend payable on a dividend payment date on any series of the preferred stock for which dividends are non-cumulative, then the holders of such series of the preferred stock will have no right to receive a dividend for the dividend period ending on such dividend payment date, and we will not be obligated to pay the dividend accrued for such period, even if our board of directors declares a dividend in the future.

We will not pay a dividend on any class or series of stock ranking as to dividends equal with or junior to a series of preferred stock unless:

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if such series of preferred stock has a cumulative dividend, full cumulative dividends have been or contemporaneously are declared and paid (or declared and sufficient money is set apart for payment); or

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if such series of preferred stock does not have a cumulative dividend, full dividends for the then current dividend period have been or contemporaneously are declared and paid (or declared and sufficient money is set apart for the payment).

If at any time full dividends will not be paid (or declared and sufficient money set apart for payment) on all shares of preferred stock ranking equal as to dividends, then:

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we will declare any dividends pro rata among all shares of preferred stock ranking equal as to dividends. This means that the dividends we declare per share on each series of such preferred stock,

which will not include any accumulation in respect of unpaid dividends for prior dividend periods if such preferred stock does not have a cumulative dividend, will bear the same relationship to each other that the full accrued dividends per share on each such series of preferred stock bear to each other;

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other than pro rata dividends, we will not declare or pay any dividends or set any money aside for payment of dividends, except dividends paid in the form of securities ranking junior to the preferred stock as to dividends and upon liquidation, or declare or make any distributions upon any security ranking junior to or equal with the preferred stock as to dividends or upon liquidation; and

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we will not redeem, purchase, or otherwise acquire, or set aside money for a sinking fund for, any securities ranking junior to or equal with the preferred stock as to dividends or upon liquidation, except by conversion into or exchange for shares junior to the preferred stock as to dividends and upon liquidation.

Redemption

A series of preferred stock may be redeemable, in whole or in part, at our option and may be subject to mandatory redemption pursuant to a sinking fund, or otherwise, as we may describe in the applicable prospectus supplement.

If a series of preferred stock is subject to mandatory redemption, we will specify the following in the applicable prospectus supplement:

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the date on which such mandatory redemption shall commence and the number of shares of such preferred stock that we will redeem each year after such date;

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the redemption price; and

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whether the redemption price will be paid in cash or other property together with an amount equal to all accrued and unpaid dividends, which shall not include any accumulation in respect of unpaid dividends for prior dividend periods if such preferred stock does not have a cumulative dividend, to the date of redemption.

If we are only permitted to pay the redemption price of a series of preferred stock from the net proceeds of the issuance of shares of our capital stock and the proceeds from such issuance are insufficient or no such issuance has occurred, then the terms of that series may provide that such preferred stock will automatically and mandatorily be converted into shares of our capital stock pursuant to conversion provisions which we will specify in the applicable prospectus supplement.

Even if the terms of a series of preferred stock permit us to redeem such shares of preferred stock in whole or in part, if any dividends, including accumulated dividends, on that series are past due, we will not:

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redeem any preferred stock of that series unless we simultaneously redeem all outstanding shares of preferred stock of that series; and

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purchase or otherwise acquire any preferred stock of that series, except by conversion into or exchange for shares of our capital stock ranking junior to such preferred stock as to dividends and upon liquidation.

The prohibitions regarding redemption discussed in the prior sentence will not restrict us from purchasing or acquiring preferred stock of any series to preserve our REIT status or pursuant to a purchase or exchange offer made on the same terms to all holders of that series.

If fewer than all of the outstanding shares of any series of preferred stock are to be redeemed, our board of directors will determine the number of shares to be redeemed. Except when such redemption is to preserve our

status as a REIT, we may redeem the shares pro rata from the holders of record in proportion to the number of such shares held by them or for which such holder requested redemption, with adjustments to avoid redemption of fractional shares, or by any other equitable manner that we determine.

We will give notice of redemption by mailing a notice to each record holder of shares to be redeemed between 30 and 60 days prior to the date fixed for redemption. Each notice shall state:

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the redemption date;

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the number of shares and series of the preferred stock to be redeemed;

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the redemption price;

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the place or places where the holders of such preferred stock may surrender the certificates for payment of the redemption price;

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that dividends on the shares to be redeemed will cease to accrue on the redemption date; and

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the date upon which the holder’s conversion rights, if any, will terminate.

If we redeem fewer than all shares of any series of preferred stock, we will specify in the notice to each holder the number of shares to be redeemed from such holder. If we have given notice of redemption of any preferred stock and we have set aside the funds necessary for the payment of the redemption price, then beginning on the redemption date, the dividends on the preferred stock called for redemption will no longer accrue, and the holders will no longer have any rights as stockholders except to receive the redemption price.

Liquidation Rights

Unless we state otherwise in the applicable prospectus supplement, if we voluntarily or involuntarily liquidate, dissolve, or wind up our business, the holders of each series of preferred stock will be entitled to receive:

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liquidating distributions, if any, in the amount or proportion stated in the applicable prospectus supplement; and

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all accrued and unpaid dividends, which will not include any accumulation in respect of unpaid dividends for prior dividend periods if such preferred stock does not have a cumulative dividend.

We will pay these amounts to the holders of shares of each series of the preferred stock, and all amounts owing on any other class or series of our capital stock ranking senior to or equally with such series of preferred stock as to distributions upon liquidation, out of our assets legally available for distribution to our stockholders before we make any distribution or payment to holders of any of our securities ranking junior to such series of preferred stock. After we pay the full amount of the liquidating distributions to the holders of preferred stock to which they are entitled, such holders will have no right or claim to any of our remaining assets.

If we voluntarily or involuntarily liquidate, dissolve or wind up our business and our available assets are insufficient to pay the amount of the liquidating distributions on all outstanding shares of each series of preferred stock and any other shares of our stock ranking senior to or equal with such series as to any such distribution, then we will only make pro rata distributions to the holders of all shares ranking equal as to distributions upon dissolution, liquidation or winding up of our business.

If we have paid the full liquidation preference to all holders of preferred stock, we will distribute our remaining assets among the holders of any other classes or series of our capital stock ranking junior to the preferred stock upon liquidation, dissolution or winding up of our business, according to their respective rights and preferences. For such purposes, our consolidation with or into any other corporation, trust or entity, or the sale, lease or conveyance of all or substantially all of our property or business, will not be considered a liquidation, dissolution or winding up of our business.

Voting Rights

As a holder of preferred stock, you will not have any voting rights, except as we describe in this section or in the applicable prospectus supplement or as required by law.

Except as provided otherwise for any series of preferred stock, unless we receive the consent of a majority of all the outstanding shares of such series of preferred stock, we will not:

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authorize or create, or increase the authorized or issued amount of, any class or series of shares of capital stock ranking senior to such series of preferred stock with respect to payment of dividends or the distribution of assets upon liquidation, dissolution, or winding up of our business;

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reclassify any authorized capital stock into such shares of capital stock ranking senior to such series of preferred stock with respect to payment of dividends or the distribution of assets upon liquidation, dissolution, or winding up of our business;

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create, authorize or issue any obligation or security convertible into or evidencing the right to purchase shares of capital stock ranking senior to such series of preferred stock with respect to payment of dividends or the distribution of assets upon liquidation, dissolution or winding up of our business; or

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amend, alter or repeal our certificate of incorporation, whether by merger, consolidation or otherwise, so as to materially and adversely affect any right, preference, privilege or voting power of such series of preferred stock or the holders of that stock.

As a holder of preferred stock, you may give your consent in person or by proxy, either in writing or at a meeting with each series voting separately as a class. We are not required to obtain your consent, as a holder of preferred stock, for the following actions because they will be deemed not to adversely affect any right, preference, or voting power of your series of preferred stock:

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if upon the amendment, alteration, or repeal our certificate of incorporation, whether by merger, consolidation or otherwise, your series of preferred stock remains outstanding with its terms materially unchanged, taking into account that, upon the occurrence of such an event, we may not be the surviving entity;

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any increase in the amount of the authorized preferred stock, or the creation or issuance of any other series of preferred stock, provided such series of preferred stock ranks equal with or junior to your series of preferred stock; or

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any increase in the amount of authorized shares of a series of preferred stock, in each case ranking equal with or junior to the preferred stock of such series with respect to payment of dividends, or the distribution of our assets upon liquidation, dissolution or winding-up of our business.

The foregoing voting provisions will not apply if we redeem or call for redemption all shares of a series of preferred stock outstanding at or prior to the time when the act with respect to which such vote would otherwise be required shall be effected. All outstanding shares of a series of preferred stock will be deemed to have been redeemed or called for redemption provided sufficient funds will have been deposited in trust to effect such redemption.

Conversion or Exchange Rights

We will specify in the applicable prospectus supplement the terms and conditions, if any, upon which any series of preferred stock is convertible into common stock or preferred stock of a different series or exchangeable for other securities. Such terms will include:

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the number of shares of common stock, preferred stock or other securities to be received on conversion or exchange of each share of such preferred stock;

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the conversion or exchange price or rate or method of calculation;

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the conversion or exchange period;

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whether conversion or exchange is at our option and/or at the option of the holder of preferred stock;

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any events resulting in adjustment of the conversion or exchange price or rate; and

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rights of conversion or exchange in the event we call for redemption such series of preferred stock.

Restrictions on Ownership

For us to qualify as a real estate investment trust under the Internal Revenue Code, no more than 50% in value of our outstanding stock may be owned, actually or constructively, by five or fewer individuals during the last half of a taxable year. To assist us in meeting this requirement, we may take actions including the automatic conversion of shares in excess of this ownership restriction into excess stock to limit the ownership of our outstanding equity securities, actually or constructively, by one person or entity. See “Limits on Ownership of Common Stock of Boston Properties, Inc.” beginning on page 45.

Transfer Agent

We will name the transfer agent and registrar for the preferred stock in the applicable prospectus supplement.

DESCRIPTION OF DEPOSITARY SHARES OF BOSTON PROPERTIES, INC.

General

We may issue receipts for depositary shares, each of which will represent a fractional interest of a share of a particular series of preferred stock, as specified in the applicable prospectus supplement. The shares of preferred stock of each series represented by depositary shares will be deposited under a separate deposit agreement among Boston Properties, Inc., the depositary named in the deposit agreement, and the holders of the depositary receipts. Immediately following our issuance and delivery of the preferred stock to the depositary, we will cause the depositary to issue, on our behalf, the depositary receipts. Subject to the terms of the applicable depositary agreement, each owner of a depositary receipt will be entitled, in proportion to the fractional interest of a share of a particular series of preferred stock represented by the depositary shares evidenced by the depositary receipts, to all the rights and preferences of preferred stock represented by the depositary shares, including dividend, voting, conversion, redemption and liquidation rights, in each case as designated by our board of directors and described in the applicable prospectus supplement.

The summary of our depositary shares set forth below is not complete. You should refer to the applicable prospectus supplement, provisions of the deposit agreement and the depositary receipts that will be filed with the SEC as part of the offering of any depositary shares. To obtain copies of these documents, see “Where You Can Find More Information.”

Dividends and Other Distributions

The depositary will distribute all cash dividends or other cash distributions received with respect to the shares of the applicable series of the preferred stock proportionately to the record holders of the depositary receipts entitled to receive the distribution. Such distributions are subject to certain obligations of holders to file proofs, certificates and other information and to pay certain charges and expenses to the depositary.

In the event of a non-cash distribution, the depositary will distribute property it receives to the record holders of depositary receipts entitled to the property unless the depositary determines that it cannot be made proportionately or it is not feasible to make such distribution, in which case the depositary may, with our approval, sell such property and distribute the net proceeds of such sale to holders of the depository receipts entitled to receive the distribution. Such distributions by the depositary are subject to certain obligations of holders to file proofs, certificates, and other information and to pay certain changes and expenses to the depositary.

Withdrawal of Shares

Unless the related depositary shares have been called previously for redemption, upon surrender of the depositary receipts at the corporate trust office of the depositary, the holders thereof will be entitled to delivery at such office, to or upon such holder’s order, of the number of whole or fractional shares of preferred stock and any money or other property represented by the depositary shares evidenced by such depositary receipts. Holders of depositary receipts will be entitled to receive whole or fractional shares of the related preferred stock on the basis of the proportion of preferred stock represented by each depositary share as specified in the applicable prospectus supplement, but holders of such preferred stock will not thereafter be entitled to receive depositary shares therefor. If the depositary receipts delivered by the holder evidence a number of depositary shares in excess of the number of depositary shares representing the preferred stock to be withdrawn, the depositary will deliver to such holder at the same time a new depositary receipt evidencing such excess number of depositary shares.

Redemption

Whenever we redeem preferred stock held by the depositary, the depositary will redeem as of the same redemption date the number of depositary shares representing the preferred stock so redeemed, provided we have

paid in full to the depositary the redemption price of the preferred stock to be redeemed plus an amount equal to any accrued and unpaid dividends thereon to the date fixed for redemption. With respect to noncumulative preferred stock, dividends will be paid for the current dividend period only. The redemption price per depositary share will be equal to the redemption price and any other amounts per share payable with respect to the preferred stock. If less than all the depositary shares are to be redeemed, the depositary shares to be redeemed will be selected pro rata or by any other equitable method determined by us.

After the date fixed for redemption, the depositary shares called for redemption will no longer be deemed to be outstanding and all rights of the holders of the depositary receipts evidencing the depositary shares called for redemption will cease. However, the holders will have the right to receive any moneys payable upon redemption and any money or other property that the holders of such depositary receipts were entitled to at the time of redemption when they surrender their depositary receipts to the depositary.

Voting Rights

Upon receipt of notice of any meeting at which the holders of the preferred stock are entitled to vote, the depositary will mail the information contained in such notice to the record holders of the depositary receipts related to such preferred stock. Each record holder of depositary receipts on the record date will be entitled to instruct the depositary as to the exercise of the voting rights of the preferred stock related to such holder’s depositary receipts. The record date for depositary receipts will be the same date as the record date for preferred stock. The depositary will vote the preferred stock related to such depositary receipts in accordance with such instructions, and we will agree to take all reasonable action that the depositary deems necessary to enable it to vote the preferred stock. The depositary will abstain from voting the preferred stock represented by such depositary shares to the extent it does not receive specific instructions from the holders of depositary receipts.

Liquidation Preference

In the event of our liquidation, dissolution or winding-up, whether voluntary or involuntary, each holder of a depositary receipt will be entitled to the fraction of the liquidation preference accorded the preferred stock represented by the depositary share evidenced by such depositary receipt, as set forth in the applicable prospectus supplement.

Conversion or Exchange of Preferred Stock

The depositary shares, as such, are not convertible into or exchangeable for common stock or any other securities or property. Nevertheless, if so specified in the applicable prospectus supplement relating to an offering of depositary shares, the depositary receipts may be surrendered by holders thereof to the depositary with written instructions to the depositary to instruct us to cause conversion or exchange of the preferred stock represented by the depositary shares into whole common stock, other preferred stock or other securities or property. Upon receipt of such instructions and any amounts payable in respect thereof, we will cause the conversion or exchange thereof utilizing the same procedures as those provided for delivery of preferred stock to effect such conversion or exchange. If the depositary shares evidenced by a depositary receipt are to be converted or exchanged in part only, one or more new depositary receipts will be issued for any depositary shares not to be converted or exchanged. No fractional shares will be issued upon conversion or exchange. If conversion or exchange will result in a fractional share being issued, we will pay in cash an amount equal to the value of the fractional interest based upon the closing price of the shares on the last business day prior to the conversion or exchange.

Amendment and Termination of the Deposit Agreement

The form of depositary receipt evidencing the depositary shares which represent the preferred stock and any provision of the deposit agreement may at any time be amended by agreement between the depositary and us.

However, any amendment that materially and adversely alters the rights of the holders of depositary receipts will not be effective unless it has been approved by the existing holders of at least a majority of the depositary shares evidenced by outstanding depositary receipts.

We may terminate the deposit agreement upon not less than 30 days’ prior written notice to the depositary if (1) such termination is to preserve our status as a REIT or (2) a majority of each class of preferred stock affected by such termination consents to such termination. Upon termination of the deposit agreement, the depositary shall deliver or make available to each holder of depositary receipts, upon surrender of the depositary receipts held by such holder, such number of whole or fractional shares of preferred stock as are represented by the depositary shares evidenced by such depositary receipts. In addition, the deposit agreement will automatically terminate if:

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all outstanding depositary shares have been redeemed;

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there has been a final distribution in respect of the related share of preferred stock in connection with any liquidation, dissolution, or winding-up and such distribution has been distributed to the holders of depositary receipts evidencing the depositary shares representing such preferred stock; or

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the related preferred stock shall have been converted into capital stock that is not represented by depositary shares.

Fees of Depositary

We will pay all transfer and other taxes and governmental charges arising solely from the existence of the deposit agreement. In addition, we will pay the fees and expenses of the depositary in connection with the performance of its duties under the deposit agreement. However, holders of depositary receipts will pay the depositary’s fees and expenses for any duties that holders request to be performed which are outside those expressly provided for in the deposit agreement.

Resignation and Removal of Depositary

The depositary may resign at any time by delivering to us notice of its resignation, and we may remove the depositary at any time. Any such resignation or removal will take effect upon the appointment of a successor depositary. A successor depositary must be appointed within 60 days after delivery of the notice of resignation or removal. A successor depositary must be a bank or trust company having its principal office in the United States and having a combined capital and surplus of at least $50,000,000.

Restrictions on Ownership

In order to safeguard us against an inadvertent loss of REIT status, the deposit agreement will contain provisions restricting the ownership and transfer of depositary shares. These restrictions will be described in the applicable prospectus supplement.

Miscellaneous

The depositary will forward to holders of depositary receipts any reports and communications from us which it receives with respect to the related shares of preferred stock. Neither we nor the depositary will be liable if it is prevented from or delayed in, by law or any circumstances beyond its control, performing its obligations under the deposit agreement. The obligations of the depositary and us under the deposit agreement will be limited to performing their duties thereunder in good faith and without gross negligence or willful misconduct. We and the depositary will not be obligated to prosecute or defend any legal proceeding in respect of any depositary receipts, depositary shares, or preferred stock represented thereby unless satisfactory indemnity is furnished. We and the depositary may rely on written advice of counsel or accountants, or information provided by persons

presenting preferred stock represented thereby for deposit, holders of depositary receipts, or other persons believed to be competent to give such information, and on documents believed to be genuine and signed by a proper party.

If the depositary shall receive conflicting claims, requests, or instructions from any holders of depositary receipts, on the one hand, and us, on the other hand, the depositary shall be entitled to act on such claims, requests, or instructions received from us.

DESCRIPTION OF WARRANTS OF BOSTON PROPERTIES, INC.

We have no warrants or other share purchase rights outstanding, other than options issued under our 1997 Stock Option and Incentive Plan and preferred stock purchase rights. Each common unit of partnership interest issued by Boston Properties Limited Partnership, however, may generally be redeemed by the holder thereof for cash equal to the fair market value of one share of Boston Properties, Inc. common stock, except that we may at our election acquire any common unit so presented for redemption for one share of Boston Properties, Inc. common stock. In addition, as of June 30, 2007, Boston Properties Limited Partnership had outstanding preferred units that at present or at a future date may be converted into an aggregate of 1,676,461 common units, with each such common unit having the right described in the preceding sentence.

Boston Properties, Inc. may issue warrants for the purchase of Boston Properties, Inc. preferred stock or Boston Properties, Inc. common stock by this prospectus. Warrants may be issued independently, together with any other securities offered by any prospectus supplement or through a dividend or other distribution to the stockholders of Boston Properties, Inc. and may be attached to or separate from such securities. We may issue warrants under a warrant agreement to be entered into between us and a warrant agent. We will name any warrant agent in the applicable prospectus supplement. The warrant agent will act solely as our agent in connection with the warrants of a particular series and will not assume any obligation or relationship of agency or trust for or with any holders or beneficial owners of warrants. In the applicable prospectus supplement, we will describe the terms of the warrants and applicable warrant agreement, including, where applicable, the following:

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the title of such warrants;

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their aggregate number;

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the price or prices at which we will issue them;

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the designation, number and terms of the preferred stock or common stock that can be purchased upon exercise of them;

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the designation and terms of the other securities, if any, with which such warrants are issued and the number of such warrants issued with each such security;

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the date, if any, on and after which they and the related preferred stock or common stock, if any, will be separately transferable;

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the price at which each share of preferred stock or common stock that can be purchased upon exercise of such warrants may be purchased;

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the date on which the right to exercise them shall commence and the date on which such right shall expire;

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the minimum or maximum amount of such warrants which may be exercised at any one time;

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information with respect to book-entry procedures, if any;

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a discussion of certain federal income tax considerations, and

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any other terms of such warrants, including terms, procedures, and limitations relating to the transferability, exchange, and exercise of such warrants.

LIMITS ON OWNERSHIP OF BOSTON PROPERTIES, INC. COMMON STOCK

Ownership limits

For Boston Properties, Inc. to qualify as a real estate investment trust under the Internal Revenue Code, among other things, not more than 50% in value of Boston Properties, Inc. outstanding stock may be owned, actually or constructively, by five or fewer individuals during the last half of a taxable year, and Boston Properties, Inc. outstanding stock must be beneficially owned by 100 or more persons during at least 335 days of a taxable year of 12 months or during a proportionate part of a shorter taxable year. In order to protect Boston Properties, Inc. against the risk of losing its status as a real estate investment trust and to otherwise protect it from the consequences of a concentration of ownership among the stockholders of Boston Properties, Inc., the certificate of incorporation of Boston Properties, Inc. provides that generally no holder may beneficially own more than 6.6% of any class or series of our stock. Under the certificate of incorporation of Boston Properties, Inc., a person generally “beneficially owns” shares if:

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the person has direct ownership of the shares;

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the person has indirect ownership of the shares taking into account the constructive ownership rules of Section 544 of the Internal Revenue Code, as modified by Section 856(h)(1)(B) of the Internal Revenue Code; or

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the person would be deemed to beneficially own the shares pursuant to Rule 13d-3 under the Securities Exchange Act of 1934, as amended.

The certificate of incorporation of Boston Properties, Inc. provides two exceptions to the 6.6% ownership limit.

15% Related Party Ownership Limit

Each of Messrs. Mortimer B. Zuckerman and Edward H. Linde, together with his respective heirs, legatees, devisees and any other person whose beneficial ownership of shares of Boston Properties, Inc. common stock would be attributed to him under the Internal Revenue Code, is subject to an ownership limit of 15%.

15% Look-Through Entity Ownership Limit

Trusts described in Section 401(a) of the Internal Revenue Code and exempt from tax under Section 501(a) of the Internal Revenue Code, as modified by Section 856(h)(3) of the Internal Revenue Code, and entities registered under the Investment Company Act of 1940 are subject to an ownership limit of 15%. These types of entities are among the entities that are not treated as stockholders under the requirement that not more than 50% in value of Boston Properties, Inc. outstanding stock be owned by five or fewer individuals during the last half of a taxable year other than our first year. Rather, the beneficial owners of these entities will be counted as stockholders for this purpose.

Additionally, the board of directors of Boston Properties, Inc. may, in its sole discretion, waive the foregoing ownership limits if evidence satisfactory to the board of directors is presented that the changes in ownership will not jeopardize Boston Properties, Inc. status as a real estate investment trust and the board of directors otherwise determines that such action is in the best interests of Boston Properties, Inc.

These ownership limitations may have the effect of precluding the acquisition of control of Boston Properties, Inc.

Shares in excess of ownership limits

Purported transfers of Boston Properties, Inc. stock or beneficial ownership of Boston Properties, Inc. stock that would result in:

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any person violating the ownership limit applicable to that person;

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our stock being beneficially owned by fewer than 100 persons;

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Boston Properties, Inc. being “closely held” with the meaning of Section 856(h) of the Internal Revenue Code; or

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Boston Properties, Inc. constructively owning 10% or more of one of our tenants,

shall be null and void and of no effect with respect to the number of shares of stock that would cause such result. These shares will be converted automatically into an equal number of shares of our excess stock that will be transferred by operation of law to a trust for the benefit of a qualified charitable organization selected by Boston Properties, Inc. Additionally, events other than purported transfers that would result in the occurrence of any of the events described above will result in a number of shares of stock sufficient to prevent the occurrence of such event converting into an equal number of shares of Boston Properties, Inc. excess stock and being transferred to the trust. As soon as practicable after the transfer of shares to the trust, the trustee of the trust will be required to sell the excess stock to a person who could own the shares without violating the applicable limits and distribute to the original transferee-stockholder an amount equal to the lesser of:

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the proceeds of the sale; or

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the price paid by the original transferee-owner for the shares of Boston Properties, Inc. stock that converted into excess stock in the purported transfer that triggered such conversion or, if the event that triggered the conversion of shares into excess stock was a gift or an event other than a transfer, the market price of the shares of Boston Properties, Inc. stock that converted into excess stock on the date of such event, which will be determined in the manner set forth in the certificate of incorporation of Boston Properties, Inc.

All dividends and other distributions received with respect to the excess stock prior to their sale by the trust and any proceeds from the sale by the trust in excess of the amount distributable to the original transferee-owner will be distributed to the beneficiary of the trust.

The foregoing restrictions will not apply if the board of directors of Boston Properties, Inc. determines that it is no longer in the best interests of Boston Properties, Inc. to attempt to, or to continue to, qualify as a real estate investment trust.

Right to purchase excess shares

In addition to the foregoing transfer restrictions, Boston Properties, Inc. has the right, for a period of 90 days during the time any shares of excess stock are held by the trust, to purchase all or any portion of these shares for the lesser of:

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the market price of Boston Properties, Inc. stock on the date it exercises its option to purchase, which will be determined in the manner set forth in the certificate of incorporation of Boston Properties, Inc.

The 90-day period begins on the date of the purported transfer or other event that resulted in the conversion of shares into excess stock if the original transferee-stockholder gives notice to Boston Properties, Inc. of such event or, if no notice is given, the date on which the board of directors of Boston Properties, Inc. determines that such event has occurred.

Disclosure of stock ownership by the stockholders of Boston Properties, Inc.

Each of the stockholders of Boston Properties, Inc. will be required to disclose to Boston Properties, Inc. upon demand in writing any information Boston Properties, Inc. may request to determine its status as a real estate investment trust and ensure compliance with the ownership limits.

IMPORTANT PROVISIONS OF DELAWARE LAW, BOSTON PROPERTIES, INC.’S

CERTIFICATE OF INCORPORATION AND BYLAWS AND OTHER GOVERNANCE DOCUMENTS

The following is a summary of important provisions of Delaware law, the certificate of incorporation and bylaws of Boston Properties, Inc. and other governance documents which affect Boston Properties, Inc. and its stockholders. The description below is intended as only a summary. You can access complete information by referring to Delaware General Corporation Law, the certificate of incorporation and bylaws of Boston Properties, Inc. and the other governance documents referred to in this section.

Business combinations with interested stockholders under Delaware law

Section 203 of the Delaware General Corporation Law prevents a publicly held corporation from engaging in a “business combination” with an “interested stockholder” for a period of three years after the date of the transaction in which the person became an interested stockholder, unless:

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before the date on which the person became an interested stockholder, the board of directors of the corporation approved either the business combination or the transaction which resulted in the person becoming an interested stockholder;

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the interested stockholder owned at least 85% of the outstanding voting stock of the corporation at the time the transaction commenced, excluding stock held by directors who are also officers of the corporation and by employee stock plans that do not provide participants with the rights to determine confidentially whether shares held subject to the plan will be tendered in a tender or exchange offer; or

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at or after the date on which the person became an interested stockholder, the business combination is approved by the board of directors and the holders of at least two-thirds of the voting stock of the corporation voting at a meeting, excluding the voting stock owned by the interested stockholder.

As defined in Section 203, the term “interested stockholder” is generally (1) a person who, together with affiliates and associates, owns 15% or more of a corporation’s outstanding voting stock or (2) a person who is an affiliate or associate of the corporation and was, together with affiliates and associates, the owner of 15% or more of a corporation’s outstanding voting stock within the past three years. As defined in Section 203, a “business combination” includes mergers, consolidations, stock and assets sales and other transactions with the interested stockholder.

The provisions of Section 203 may have the effect of delaying, deferring or preventing a change of control of Boston Properties, Inc.

Amendment of the certificate of incorporation and bylaws of Boston Properties, Inc.

Amendments to the certificate of incorporation of Boston Properties, Inc. must be approved by the affirmative vote of more than 75% of the directors then in office and generally by the vote of a majority of the votes entitled to be cast at a meeting of the stockholders of Boston Properties, Inc. However, the affirmative vote of not less than 75% of Boston Properties, Inc.’s outstanding shares entitled to vote thereon, voting together as a single class, and the affirmative vote of not less than 75% of the outstanding shares of each class entitled to vote thereon, is required for amendments dealing with fundamental governance provisions of the certificate of incorporation of Boston Properties, Inc., including provisions relating to:

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stockholder action;

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the powers, election of, removal of and classification of directors;

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limitation of liability; and

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amendment of the bylaws or certificate of incorporation of Boston Properties, Inc.

Unless otherwise required by law, the board of directors of Boston Properties, Inc. may amend the bylaws of Boston Properties, Inc. by a majority vote of the directors of Boston Properties, Inc. then in office. The bylaws of

Boston Properties, Inc. may also be amended at a meeting of stockholders by the affirmative vote of a majority of the shares present in person or represented by proxy at the meeting and entitled to be cast on such amendment, voting together as a single class, if the board of directors of Boston Properties, Inc. recommends the approval of the amendment. Otherwise the bylaws of Boston Properties, Inc. may be amended at a meeting of stockholders by the affirmative vote of at least 75% of the outstanding shares of capital stock entitled to vote on such amendment, voting together as a single class.

Meetings of stockholders

Under the bylaws of Boston Properties, Inc., Boston Properties, Inc. will hold annual meetings of its stockholders at a date and time as determined by the board of directors, Chairman or President of Boston Properties, Inc. The bylaws of Boston Properties, Inc. require advance notice for the stockholders of Boston Properties, Inc. to make nominations of candidates for the board of directors of Boston Properties, Inc. or bring other business before an annual meeting of the stockholders of Boston Properties, Inc. Only the board of directors of Boston Properties, Inc. can call special meetings of the stockholders of Boston Properties, Inc. and any special meeting is restricted to considering and acting upon matters set forth in the notice of that special meeting.

Board of directors

The board of directors of Boston Properties, Inc. is divided into three classes. As the term of each class expires, directors in that class will be elected for a term of three years and until their successors are duly elected and qualified.

The certificate of incorporation of Boston Properties, Inc. provides that the affirmative vote of more than 75% of the directors then in office is required to approve fundamental transactions or actions, including:

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a change of control of Boston Properties, Inc. or of Boston Properties Limited Partnership;

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any amendment to the limited partnership agreement of Boston Properties Limited Partnership;

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any waiver of the limitations on ownership contained in the certificate of incorporation of Boston Properties, Inc.;

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any merger, consolidation or sale of all or substantially all of the assets of Boston Properties, Inc. or of Boston Properties Limited Partnership;

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certain issuances of equity securities by Boston Properties, Inc. (but not including, among others, underwritten public offerings);

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Boston Properties, Inc. or Boston Properties Limited Partnership making a general assignment for the benefit of creditors or instituting any proceedings in bankruptcy or for the liquidation, dissolution, reorganization or winding up of either entity or consenting to the taking of any of these actions against either entity;

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any amendment of the certificate of incorporation of Boston Properties, Inc.;

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Boston Properties, Inc. conducting business other than through Boston Properties Limited Partnership or for either of them to engage in any business other than the ownership, construction, development, management and operation of commercial real estate properties; and

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termination of Boston Properties, Inc.’s status as a REIT.

Limitation of directors’ and officers’ liability

The certificate of incorporation of Boston Properties, Inc. generally limits the liability of the directors of Boston Properties, Inc. to Boston Properties, Inc. and its stockholders to the fullest extent permitted by Delaware

law, as it now exists or may in the future be amended. The Delaware General Corporation Law permits a corporation to indemnify its directors, officers, employees or agents and expressly provides that the indemnification provided for under the Delaware General Corporation Law shall not be deemed exclusive of any indemnification right under any bylaw, agreement, vote of stockholders or disinterested directors, or otherwise. Delaware law permits indemnification against expenses and certain other liabilities arising out of legal actions brought or threatened against these persons for their conduct on behalf of a corporation, provided that each such person acted in good faith and in a manner that he or she reasonably believed was in or not opposed to the corporation’s best interests and, in the case of a criminal proceeding, provided each person had no reasonable cause to believe his or her conduct was unlawful. Delaware law does not allow indemnification of directors in the case of an action by or in the right of a corporation unless the directors successfully defend the action or indemnification is ordered by the court.

The bylaws of Boston Properties, Inc. provide that its directors and officers will be, and, in the discretion of the board of directors of Boston Properties, Inc., non-officer employees may be, indemnified to the fullest extent authorized by Delaware law, as it now exists or may in the future be amended, against all expenses and liabilities actually and reasonably incurred in connection with service for or on behalf of our company. The bylaws of Boston Properties, Inc. also provide that the right of directors and officers to indemnification shall be a contract right and shall not be exclusive of any other right now possessed or hereafter acquired under any bylaw, agreement, vote of stockholders, or otherwise.

The certificate of incorporation of Boston Properties, Inc. contains a provision permitted by Delaware law that generally eliminates the personal liability of directors for monetary damages for breaches of their fiduciary duty, including breaches involving negligence or gross negligence in business combinations, unless the director has breached his or her duty of loyalty, failed to act in good faith, engaged in intentional misconduct or a knowing violation of law, paid a dividend or approved a stock repurchase in violation of the Delaware General Corporation Law or obtained an improper personal benefit. This provision does not alter a director’s liability under the federal securities laws. In addition, this provision does not affect the availability of equitable remedies, including an injunction or rescission, for breach of fiduciary duty.

Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers or persons controlling Boston Properties, Inc. pursuant to the foregoing provisions, Boston Properties, Inc. has been informed that in the opinion of the staff of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Securities Act of 1933 and is therefore unenforceable.

Indemnification Agreements

Boston Properties, Inc. has entered into indemnification agreements with each of the directors and some of the officers of Boston Properties, Inc. The indemnification agreements require, among other things, that Boston Properties, Inc. indemnify the directors and officers of Boston Properties, Inc. to the fullest extent permitted by law and advance to the directors and officers of Boston Properties, Inc. all related expenses, subject to reimbursement if it is subsequently determined that indemnification is not permitted. Under these agreements, Boston Properties, Inc. must also indemnify and advance all expenses incurred by the directors and officers of Boston Properties, Inc. seeking to enforce their rights under the indemnification agreements and may cover the directors and officers of Boston Properties, Inc. under its directors’ and officers’ liability insurance. Although the form of indemnification agreement offers substantially the same scope of coverage afforded by law, it provides greater assurance to the directors and officers of Boston Properties, Inc. that indemnification will be available, because, as a contract, it cannot be modified unilaterally in the future by the Board of Directors or stockholders to eliminate the rights it provides.

Boston Properties Limited Partnership Agreement

Boston Properties, Inc. has agreed in the limited partnership agreement of Boston Properties Limited Partnership not to engage in specified extraordinary transactions, including, among others, business combinations, unless limited partners of Boston Properties Limited Partnership, other than Boston Properties, Inc., receive, or have the opportunity to receive, either (1) the same consideration for their partnership interests as holders of Boston Properties, Inc. common stock in the transaction or (2) limited partnership units that, among other things, would entitle the holders, upon redemption of these units, to receive shares of common equity of a publicly traded company or the same consideration as holders of the common stock of Boston Properties, Inc. received in the transaction. If these limited partners would not receive such consideration, Boston Properties, Inc. cannot engage in the transaction unless limited partners holding at least 75% of the common units of limited partnership interest, other than those held by Boston Properties, Inc. or its affiliates, consent to the transaction. In addition, Boston Properties, Inc. has agreed in the limited partnership agreement of Boston Properties Limited Partnership that Boston Properties, Inc. will not complete business combinations in which Boston Properties, Inc. receives the approval of its common stockholders unless either (1) limited partners holding at least 75% of the common units of limited partnership interest, other than those held by Boston Properties, Inc. or its affiliates, consent to the transaction or (2) the limited partners of Boston Properties Limited Partnership are also allowed to vote and the transaction would have been approved had these limited partners been able to vote as common stockholders on the transaction. Therefore, if the common stockholders of Boston Properties, Inc. approve a specified extraordinary transaction, the partnership agreement requires the following before Boston Properties, Inc. can complete the transaction:

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holders of partnership interests in Boston Properties Limited Partnership, including Boston Properties, Inc., must vote on the matter;

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Boston Properties, Inc. must vote all of its partnership interests in the same proportion as the stockholders of Boston Properties, Inc. voted on the transaction; and

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the result of the vote of holders of partnership interests in Boston Properties Limited Partnership must be such that had such vote been a vote of stockholders, the transaction would have been approved.

LEGAL OWNERSHIP AND BOOK-ENTRY ISSUANCE

In this section, we describe special considerations that will apply to registered securities issued in global—i.e., book-entry—form. First we describe the difference between legal ownership and indirect ownership of registered securities. Then we describe special provisions that apply to global securities.

Who Is the Legal Owner of a Registered Security?

Each debt security, share of common stock or preferred stock and depositary share in registered form will be represented either by a certificate issued in definitive form to a particular investor or by one or more global securities representing the entire issuance of securities. We refer to those who have securities registered in their own names, on the books that we or the trustee or other agent maintain for this purpose, as the “holders” of those securities. These persons are the legal holders of the securities. We refer to those who, indirectly through others, own beneficial interests in securities that are not registered in their own names as indirect owners of those securities. As we discuss below, indirect owners are not legal holders, and investors in securities issued in book-entry form or in street name will be indirect owners.

Book-Entry Owners

We expect to issue debt securities and depositary shares in book-entry form only. We may issue shares of common stock in book-entry form. This means those securities will be represented by one or more global securities registered in the name of a financial institution that holds them as depositary on behalf of other financial institutions that participate in the depositary’s book-entry system. These participating institutions, in turn, hold beneficial interests in the securities on behalf of themselves or their customers.

Under each indenture or other applicable agreement, only the person in whose name a security is registered is recognized as the holder of that security. Consequently, for securities issued in global form, we will recognize only the depositary as the holder of the securities and we will make all payments on the securities, including deliveries of common or preferred shares in exchange for exchangeable debt securities, to the depositary. The depositary passes along the payments it receives to its participants, which in turn pass the payments along to their customers who are the beneficial owners. The depositary and its participants do so under agreements they have made with one another or with their customers; they are not obligated to do so under the terms of the securities.

As a result, investors will not own securities directly. Instead, they will own beneficial interests in a global security, through a bank, broker or other financial institution that participates in the depositary’s book-entry system or holds an interest through a participant. As long as the securities are issued in global form, investors will be indirect owners, and not holders, of the securities.

Street Name Owners

In the future we may terminate a global security or issue securities initially in non-global form. In these cases, investors may choose to hold their securities in their own names or in street name. Securities held by an investor in street name would be registered in the name of a bank, broker or other financial institution that the investor chooses, and the investor would hold only a beneficial interest in those securities through an account he or she maintains at that institution.

For securities held in street name, we will recognize only the intermediary banks, brokers and other financial institutions in whose names the securities are registered as the holders of those securities and we will make all payments on those securities, including deliveries of common or preferred shares in exchange for exchangeable debt securities, to them. These institutions pass along the payments they receive to their customers who are the beneficial owners, but only because they agree to do so in their customer agreements or because they are legally required to do so. Investors who hold securities in street name will be indirect owners, not holders, of those securities.

Legal Holders

Our obligations, as well as the obligations of the trustee under any indenture and the obligations, if any, of any other third parties employed by us, the trustee or any agents, run only to the holders of the securities. We do not have obligations to investors who hold beneficial interests in global securities, in street name or by any other indirect means. This will be the case whether an investor chooses to be an indirect owner of a security or has no choice because we are issuing the securities only in global form.

For example, once we make a payment or give a notice to the holder, we have no further responsibility for that payment or notice even if that holder is required, under agreements with depositary participants or customers or by law, to pass it along to the indirect owners but does not do so. Similarly, if we want to obtain the approval of the holders for any purpose—e.g., to amend the indenture for a series of debt securities or to relieve us of the consequences of a default or of our obligation to comply with a particular provision of an indenture—we would seek the approval only from the holders, and not the indirect owners, of the relevant securities. Whether and how the holders contact the indirect owners is up to the holders.

When we refer to “you” in this section of the prospectus, we mean those who invest in the securities being offered by this prospectus and the applicable prospectus supplement, whether they are the holders or only indirect owners of those securities. When we refer to “your securities” in this section of the prospectus, we mean the securities in which you will hold a direct or indirect interest.

Special Considerations for Indirect Owners

If you hold securities through a bank, broker or other financial institution, either in book-entry form or in street name, you should check with your own institution to find out:

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how it handles securities payments and notices;

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whether it imposes fees or charges;

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how it would handle a request for the holders’ consent, if ever required;

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whether and how you can instruct it to send you securities registered in your own name so you can be a holder, if that is permitted in the future;

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how it would exercise rights under the securities if there were a default or other event triggering the need for holders to act to protect their interests; and

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if the securities are in book-entry form, how the depositary’s rules and procedures will affect these matters.

What Is a Global Security?

A global security is issued in book-entry form only. Each security issued in book-entry form will be represented by a global security that we deposit with and register in the name of one or more financial institutions or clearing systems, or their nominees, which we select. A financial institution or clearing system that we select for any security for this purpose is called the “depositary” for that security. A security will usually have only one depositary but it may have more.

Each series of these securities will have one or more of the following as the depositaries:

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The Depository Trust Company, New York, New York, which is known as “DTC”;

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a financial institution holding the securities on behalf of Euroclear Bank S.A./N.V., as operator of the Euroclear system, which is known as “Euroclear”;

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a financial institution holding the securities on behalf of Clearstream Banking, société anonyme, Luxembourg, which is known as “Clearstream”; and

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any other clearing system or financial institution named in the applicable prospectus supplement.

The depositaries named above may also be participants in one another’s systems. Thus, for example, if DTC is the depositary for a global security, investors may hold beneficial interests in that security through Euroclear or Clearstream, as DTC participants. The depositary or depositaries for your securities will be named in your prospectus supplement; if none is named, the depositary will be DTC.

A global security may represent one or any other number of individual securities. Generally, all securities represented by the same global security will have the same terms. We may, however, issue a global security that represents multiple securities of the same kind, such as debt securities, that have different terms and are issued at different times. We call this kind of global security a master global security. Your prospectus supplement will indicate whether your securities are represented by a master global security.

A global security may not be transferred to or registered in the name of anyone other than the depositary or its nominee, unless special termination situations arise. We describe those situations below under “—Holder’s Option to Obtain a Non-Global Security; Special Situations When a Global Security Will Be Terminated.” As a result of these arrangements, the depositary, or its nominee, will be the sole registered owner and holder of all securities represented by a global security, and investors will be permitted to own only indirect interests in a global security. Indirect interests must be held by means of an account with a broker, bank or other financial institution that in turn has an account with the depositary or with another institution that does. Thus, an investor whose security is represented by a global security will not be a holder of the security, but only an indirect owner of an interest in the global security.

If the prospectus supplement for a particular security indicates that the security will be issued in global form only, then the security will be represented by a global security at all times unless and until the global security is terminated. We describe the situations in which this can occur below under “—Holder’s Option to Obtain a Non-Global Security; Special Situations When a Global Security Will Be Terminated.” If termination occurs, we may issue the securities through another book-entry clearing system or decide that the securities may no longer be held through any book-entry clearing system.

Special Considerations for Global Securities

As an indirect owner, an investor’s rights relating to a global security will be governed by the account rules of the depositary and those of the investor’s financial institution or other intermediary through which it holds its interest (e.g., Euroclear or Clearstream, if DTC is the depositary), as well as general laws relating to securities transfers. We do not recognize this type of investor or any intermediary as a holder of securities and instead deal only with the depositary that holds the global security.

If securities are issued only in the form of a global security, an investor should be aware of the following:

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An investor cannot cause the securities to be registered in his or her own name, and cannot obtain non-global certificates for his or her interest in the securities, except in the special situations we describe below;

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An investor will be an indirect holder and must look to his or her own bank or broker for payments on the securities and protection of his or her legal rights relating to the securities, as we describe above under “—Who Is the Legal Owner of a Registered Security?”;

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An investor may not be able to sell interests in the securities to some insurance companies and other institutions that are required by law to own their securities in non-book-entry form;

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An investor may not be able to pledge his or her interest in a global security in circumstances where certificates representing the securities must be delivered to the lender or other beneficiary of the pledge in order for the pledge to be effective;

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The depositary’s policies will govern payments, deliveries, transfers, exchanges, notices and other matters relating to an investor’s interest in a global security, and those policies may change from time to time. We, the trustee and any agents will have no responsibility for any aspect of the depositary’s policies, actions or records of ownership interests in a global security. We, the trustee and any agents also do not supervise the depositary in any way;

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The depositary will require that those who purchase and sell interests in a global security within its book-entry system use immediately available funds and your broker or bank may require you to do so as well; and

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Financial institutions that participate in the depositary’s book-entry system and through which an investor holds its interest in the global securities, directly or indirectly, may also have their own policies affecting payments, deliveries, transfers, exchanges, notices and other matters relating to the securities, and those policies may change from time to time. For example, if you hold an interest in a global security through Euroclear or Clearstream, when DTC is the depositary, Euroclear or Clearstream, as applicable, will require those who purchase and sell interests in that security through them to use immediately available funds and comply with other policies and procedures, including deadlines for giving instructions as to transactions that are to be effected on a particular day. There may be more than one financial intermediary in the chain of ownership for an investor. We do not monitor and are not responsible for the policies or actions or records of ownership interests of any of those intermediaries.

Holder’s Option to Obtain a Non-Global Security; Special Situations When a Global Security Will Be Terminated

If we issue any series of securities in book-entry form, but we choose to give the beneficial owners of that series the right to obtain non-global securities, any beneficial owner entitled to obtain non-global securities may do so by following the applicable procedures of the depositary, any transfer agent or registrar for that series and that owner’s bank, broker or other financial institution through which that owner holds its beneficial interest in the securities. For example, in the case of a global security representing shares of preferred stock or depositary shares, a beneficial owner will be entitled to obtain a non-global security representing its interest by making a written request to the transfer agent or other agent designated by us. If you are entitled to request a non-global certificate and wish to do so, you will need to allow sufficient lead time to enable us or our agent to prepare the requested certificate.

In addition, in a few special situations described below, a global security will be terminated and interests in it will be exchanged for certificates in non-global form representing the securities it represented. After that exchange, the choice of whether to hold the securities directly or in street name will be up to the investor. Investors must consult their own banks or brokers to find out how to have their interests in a global security transferred on termination to their own names, so that they will be holders. We have described the rights of holders and street name investors above under “—Who Is the Legal Owner of a Registered Security?”

The special situations for termination of a global security are as follows:

•

if the depositary notifies us that it is unwilling or unable to continue as depositary for that global security or the depositary has ceased to be a clearing agency registered under the Securities Exchange Act, and in either case we do not appoint another institution to act as depositary within 90 days;

•

in the case of a global security representing debt securities, if an event of default has occurred with regard to the debt securities and has not been cured or waived; or

•

any other circumstances specified for this purpose in the applicable prospectus supplement.

If a global security is terminated, only the depositary, and not we or the trustee for any debt securities, is responsible for deciding the names of the institutions in whose names the securities represented by the global security will be registered and, therefore, who will be the holders of those securities.

Considerations Relating to Euroclear and Clearstream

Euroclear and Clearstream are securities clearance systems in Europe. Both systems clear and settle securities transactions between their participants through electronic, book-entry delivery of securities against payment.

Euroclear and Clearstream may be depositaries for a global security. In addition, if DTC is the depositary for a global security, Euroclear and Clearstream may hold interests in the global security as participants in DTC.

As long as any global security is held by Euroclear or Clearstream, as depositary, you may hold an interest in the global security only through an organization that participates, directly or indirectly, in Euroclear or Clearstream. If Euroclear or Clearstream is the depositary for a global security and there is no depositary in the United States, you will not be able to hold interests in that global security through any securities clearance system in the United States.

Payments, deliveries, transfers, exchanges, notices and other matters relating to the securities made through Euroclear or Clearstream must comply with the rules and procedures of those systems. Those systems could change their rules and procedures at any time. We have no control over those systems or their participants and we take no responsibility for their activities. Transactions between participants in Euroclear or Clearstream, on one hand, and participants in DTC, on the other hand, when DTC is the depositary, would also be subject to DTC’s rules and procedures.

Special Timing Considerations for Transactions in Euroclear and Clearstream

Investors will be able to make and receive through Euroclear and Clearstream payments, deliveries, transfers, exchanges, notices and other transactions involving any securities held through those systems only on days when those systems are open for business. Those systems may not be open for business on days when banks, brokers and other institutions are open for business in the United States.

In addition, because of time-zone differences, U.S. investors who hold their interests in the securities through these systems and wish to transfer their interests, or to receive or make a payment or delivery or exercise any other right with respect to their interests, on a particular day may find that the transaction will not be effected until the next business day in Luxembourg or Brussels, as applicable. Thus, investors who wish to exercise rights that expire on a particular day may need to act before the expiration date. In addition, investors who hold their interests through both DTC and Euroclear or Clearstream may need to make special arrangements to finance any purchases or sales of their interests between the U.S. and European clearing systems, and those transactions may settle later than would be the case for transactions within one clearing system.

UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS

The following is a summary of certain material United States federal income tax consequences relating to the purchase, ownership and disposition of common stock, preferred stock and debt securities of Boston Properties, Inc. and debt securities of Boston Properties Limited Partnership, and the qualification and taxation of Boston Properties, Inc. as a REIT.

Because this is a summary that is intended to address only certain material United States federal income tax consequences relating to the ownership and disposition of debt securities, common stock and preferred stock generally applicable to holders, it may not contain all the information that may be important to you. As you review this discussion, you should keep in mind that:

•

the tax consequences to you may vary depending on your particular tax situation;

•

special rules that are not discussed below may apply to you if, for example, you are a tax-exempt organization, a broker-dealer, a trust, an estate, a regulated investment company, a financial institution, an insurance company, a person who holds 10% or more (by vote or value) of our stock, or are otherwise subject to special tax treatment under the Internal Revenue Code of 1986, as amended, or the Code;

•

this summary does not address state, local, or non-U.S. tax considerations; and

•

this discussion is not intended to be, and should not be construed as, tax advice.

You are urged both to review the following discussion and to consult with your own tax advisor to determine the effect of ownership and disposition of the debt securities, the common stock and the preferred stock on your individual tax situation, including any state, local, or non-U.S. tax consequences.

The information in this section is based on the current Code, current, temporary and proposed Treasury regulations, the legislative history of the Code, current administrative interpretations and practices of the Internal Revenue Service, or IRS, including its practices and policies as endorsed in private letter rulings, which are not binding on the IRS except in the case of the taxpayer to whom a private letter ruling is addressed, and existing court decisions. Future legislation, regulations, administrative interpretations and court decisions could change current law or adversely affect existing interpretations of current law. Any change could apply retroactively. We have not obtained any rulings from the IRS concerning the tax treatment of the matters discussed below. Thus, it is possible that the IRS could challenge the statements in this discussion which do not bind the IRS or the courts, and that a court could agree with the IRS.

Classification and Taxation of Boston Properties, Inc. as a REIT

For purposes of this discussion and the discussion below under the heading “—Taxation of Holders of Boston Properties, Inc. Common Stock,” references to “we,” “us” or “our,” and any similar terms, refer to Boston Properties, Inc. We have elected to be taxed as a REIT under the Code. A REIT generally is not subject to federal income tax on the income that it distributes to stockholders if it meets the applicable REIT distribution requirements and other requirements for qualification.

We believe that we are organized and have operated in such a manner so as to qualify as a REIT, but there can be no assurance that we have qualified or will remain qualified as a REIT. In the opinion of our tax counsel, Goodwin Procter LLP, based upon and subject to the various assumptions and on our representations concerning our organization and operations, commencing with the taxable year ended December 31, 1997, our form of organization and operations are such as to enable us to qualify as a “real estate investment trust” under the applicable provisions of the Code. It must be emphasized that the opinion of Goodwin Procter LLP is based on various assumptions relating to our organization and operation, including that all factual representations and statements set forth in all relevant documents, records and instruments are true and correct, and that we will at all

times operate in accordance with the method of operation described in our organizational documents and this prospectus, and is conditioned upon factual representations and covenants made by our management and affiliated entities regarding our organization, assets, and past, present and future conduct of our business operations, and assumes that such representations and covenants are accurate and complete and that we will take no action inconsistent with our status as a REIT. While we believe that we are organized and have operated and intend to continue to operate so that we will qualify as a REIT, given the highly complex nature of the rules governing REITs, the ongoing importance of factual determinations, and the possibility of future changes in our circumstances, no assurance can be given by Goodwin Procter LLP or us that we have so qualified or will so qualify for any particular year. Goodwin Procter LLP will have no obligation to advise us or the holders of Boston Properties, Inc. common stock of any subsequent change in the matters stated, represented or assumed, or of any subsequent change in the applicable law. You should be aware that opinions of counsel are not binding on the IRS, and no assurance can be given that the IRS will not challenge the conclusions set forth in such opinions.

Qualification and taxation as a REIT depends on our ability to meet, on a continuing basis, through actual operating results, distribution levels, and diversity of stock ownership, various qualification requirements imposed upon REITs by the Code, the compliance with which will not be reviewed by Goodwin Procter LLP. Our ability to qualify as a REIT also requires that we satisfy certain asset tests, some of which depend upon the fair market values of assets directly or indirectly owned by us. Such values may not be susceptible to a precise determination. Accordingly, no assurance can be given that the actual results of our operations for any taxable year will satisfy such requirements for qualification and taxation as a REIT.

So long as we qualify for taxation as a REIT, we generally will not be subject to federal corporate income tax on our net income that we distribute currently to our stockholders. This treatment substantially eliminates “double taxation” (that is, taxation at both the corporate and stockholder levels) that generally results from an investment in a regular corporation. However, we will be subject to federal income tax as follows:

•

We will be taxed at regular corporate rates on any undistributed “REIT taxable income.” REIT taxable income is the taxable income of the REIT subject to specified adjustments, including a deduction for dividends paid;

•

Under some circumstances, we may be subject to the “alternative minimum tax” on our items of tax preference;

•

If we have net income from the sale or other disposition of “foreclosure property” that is held primarily for sale to customers in the ordinary course of business, or other nonqualifying income from foreclosure property, we will be subject to tax at the highest corporate rate on this income;

•

Our net income from “prohibited transactions” will be subject to a 100% tax. In general, prohibited transactions are sales or other dispositions of property held primarily for sale to customers in the ordinary course of business other than foreclosure property;

•

If we fail to satisfy either the 75% gross income test or the 95% gross income test discussed below, but nonetheless maintain our qualification as a REIT because other requirements are met, we will be subject to a tax equal to the gross income attributable to the greater of either (1) the amount by which we fail the 75% gross income test for the taxable year or (2) the amount by which we fail the 95% gross income test for the taxable year, multiplied by a fraction intended to reflect our profitability;

•

If we fail to satisfy any of the REIT asset tests, as described below, other than a failure by a de minimis amount of the 5% or 10% assets tests, as described below, but our failure is due to reasonable cause and not due to willful neglect and we nonetheless maintain our REIT qualification because of specified cure provisions, we will be required to pay a tax equal to the greater of $50,000 or 35% of the net income generated by the nonqualifying assets during the period in which we failed to satisfy the asset tests;

•

If we fail to satisfy any provision of the Code that would result in our failure to qualify as a REIT (other than a gross income or asset test requirement) and that violation is due to reasonable cause and

not due to willful neglect, we may retain our REIT qualification, but we will be required to pay a penalty of $50,000 for each such failure;

•

We may be required to pay monetary penalties to the IRS in certain circumstances, including if we fail to meet record-keeping requirements intended to monitor our compliance with rules relating to the composition of our stockholders, as described below in “—Requirements for Qualification as a REIT;”

•

We will be subject to a 4% excise tax on the excess of the required distribution over the sum of amounts actually distributed and amounts retained for which federal income tax was paid, if we fail to distribute during each calendar year at least the sum of 85% of our REIT ordinary income for the year, 95% of our REIT capital gain net income for the year; and any undistributed taxable income from prior taxable years;

•

We will be subject to a 100% penalty tax on some payments we receive (or on certain expenses deducted by a taxable REIT subsidiary) if arrangements among us, our tenants, and/or our taxable REIT subsidiaries are not comparable to similar arrangements among unrelated parties;

•

If we should acquire any asset from a “C” corporation in a carry-over basis transaction and we subsequently recognize gain on the disposition of such asset during the ten-year period beginning on the date on which we acquired the asset, then, to the extent of any built-in gain, such gain will be subject to tax at the highest regular corporate tax rate. Built-in gain means the excess of (1) the fair market value of the asset as of the beginning of the applicable recognition period over (2) the adjusted basis in such asset as of the beginning of such recognition period;

•

We may elect to retain and pay income tax on our net long-term capital gain. In that case, a stockholder would include its proportionate share of our undistributed long-term capital gain (to the extent we make a timely designation of such gain to the stockholder) in its income, would be deemed to have paid the tax that we paid on such gain, and would be allowed a credit for its proportionate share of the tax deemed to have been paid, and an adjustment would be made to increase the stockholders’ basis in Boston Properties, Inc.; and

•

We may have subsidiaries or own interests in other lower-tier entities that are “C” corporations that will jointly elect, with us, to be treated as a taxable REIT subsidiary, the earnings of which would be subject to US. federal corporate income tax.

No assurance can be given that the amount of any such federal income taxes will not be substantial. In addition, we and our subsidiaries may be subject to a variety of taxes other than U.S. federal income tax, including payroll taxes and state, local, and foreign income, franchise, property and other taxes on assets and operations. We could also be subject to tax in situations and on transactions not presently contemplated.

Requirements for Qualification as a REIT

We elected to be taxable as a REIT for United States federal income tax purposes for our taxable year ended December 31, 1997. In order to have so qualified, we must have met and continue to meet the requirements discussed below, relating to our organization, sources of income, nature of assets and distributions of income to stockholders.

The Code defines a REIT as a corporation, trust, or association:

(1)

that is managed by one or more trustees or directors;

(2)

the beneficial ownership of which is evidenced by transferable shares, or by transferable certificates of beneficial interest;

(3)

that would be taxable as a domestic corporation, but for Sections 856 through 859 of the Code;

(4)

that is neither a financial institution nor an insurance company subject to applicable provisions of the Code;

(5)

the beneficial ownership of which is held by 100 or more persons;

(6)

during the last half of each taxable year not more than 50% in value of the outstanding shares of which is owned directly or indirectly by five or fewer individuals, as defined in the Code to include specified entities;

(7)

that makes an election to be taxable as a REIT, or has made this election for a previous taxable year which has not been revoked or terminated, and satisfies all relevant filing and other administrative requirements established by the IRS that must be met to elect and maintain REIT status;

(8)

that uses a calendar year for United States federal income tax purposes and complies with the recordkeeping requirements of the Code and regulations promulgated thereunder; and

(9)

that meets other applicable tests, described below, regarding the nature of its income and assets and the amount of its distributions.

Conditions (1), (2), (3), and (4) above must be met during the entire taxable year and condition (5) above must be met during at least 335 days of a taxable year of 12 months, or during a proportionate part of a taxable year of less than 12 months. Conditions (5) and (6) are not required to be met in the REIT’s first taxable year in which it elects REIT status. For purposes of determining stock ownership under condition (6) above, a supplemental unemployment compensation benefits plan, a private foundation, and a portion of a trust permanently set aside or used exclusively for charitable purposes generally are each considered an individual. A trust that is a qualified trust under Code Section 401(a) generally is not considered an individual, and beneficiaries of a qualified trust are treated as holding shares of a REIT in proportion to their actuarial interests in the trust for purposes of condition (6) above.

To qualify as a REIT, we also cannot have at the end of any taxable year any undistributed earnings and profits that are attributable to a non-REIT taxable year. We do not believe that we have any non-REIT earnings and profits and believe that we therefore satisfy this requirement.

Protection from Stock Concentration

In order to protect us from a concentration of ownership of stock that would cause us to fail condition (6) above, our charter provides that stock owned, or deemed to be owned or transferred to a shareholder in excess of specified ownership limits will be converted automatically into Excess Stock (as defined below) and transferred to a charity for resale. The original shareholder is entitled to receive certain proceeds from such a resale. Excess Stock is a separate class of our capital stock that is entitled to no voting rights but shares ratably with the common stock in dividends and rights upon dissolution. Because of the absence of authority on this issue, however, we cannot assure you that the operation of the Excess Stock or other provisions contained in our charter will, as a matter of law, prevent a concentration of ownership of stock in excess of the applicable ownership limits from causing us to violate condition (6) above. If there were such a concentration of ownership and the operation of the Excess Stock or other provisions contained in our charter were not held to cure such violation, we would be disqualified as a REIT. In rendering its opinion that we are organized in a manner that permits us to qualify as a REIT, Goodwin Procter LLP is relying on our representation that the ownership of our stock (without regard to the Excess Stock provisions) satisfies condition (6) above. Goodwin Procter LLP expresses no opinion as to whether, as a matter of law, the Excess Stock or other provisions contained in our charter preclude us from failing condition (6) above.

To monitor its compliance with condition (6) above, a REIT is required to send annual letters to certain stockholders requesting information regarding the actual ownership of its shares. If we comply with the annual letters requirement and we do not know or, exercising reasonable diligence, would not have known of our failure to meet condition (6) above, then we will be treated as having met condition (6) above. A list of those persons failing or refusing to comply with this demand must be maintained as part of our records. Failure by us to comply with these record-keeping requirements could subject us to monetary penalties. A stockholder that fails or refuses

to comply with the demand is required by Treasury Regulations to submit a statement with its tax return disclosing the actual ownership of the shares and other information.

Qualified REIT Subsidiaries

If a REIT owns a corporate subsidiary that is a “qualified REIT subsidiary,” the separate existence of that subsidiary will be disregarded for United States federal income tax purposes. Generally, a qualified REIT subsidiary is a corporation, other than a taxable REIT subsidiary (discussed below), all of the stock of which is owned by the REIT. All assets, liabilities, and items of income, deduction, and credit of the qualified REIT subsidiary will be treated as assets, liabilities and items of income, deduction and credit of the REIT itself. A qualified REIT subsidiary of ours will not be subject to federal corporate income taxation, although it may be subject to state and local taxation in some states.

Taxable REIT Subsidiaries

A “taxable REIT subsidiary” of ours is a corporation in which we directly or indirectly own stock and that elects, together with us, to be treated as a taxable REIT subsidiary under Section 856(1) of the Code. In addition, if one of our taxable REIT subsidiaries owns, directly or indirectly, securities representing 35% or more of the vote or value of a subsidiary corporation, that subsidiary will also be treated as a taxable REIT subsidiary of ours. A taxable REIT subsidiary is a corporation subject to United States federal income tax, and state and local income tax where applicable, as a regular “C” corporation.

Generally, a taxable REIT subsidiary can perform some impermissible tenant services without causing us to receive impermissible tenant services income under the REIT income tests. However, several provisions regarding the arrangements between a REIT and its taxable REIT subsidiaries ensure that a taxable REIT subsidiary will be subject to an appropriate level of United States federal income taxation. For example, a taxable REIT subsidiary is limited in its ability to deduct interest payments in excess of a certain amount made to us. In addition, we will be obligated to pay a 100% penalty tax on some payments that we receive or on certain expenses deducted by the taxable REIT subsidiary if the economic arrangements among us, our tenants, and/or the taxable REIT subsidiary are not comparable to similar arrangements among unrelated parties.

Ownership of Partnership Interests by a REIT

A REIT that is a partner in a partnership will be deemed to own its proportionate share of the assets of the partnership and will be deemed to earn its proportionate share of the partnership’s income. The assets and gross income of the partnership retain the same character in the hands of the REIT for purposes of the gross income and asset tests applicable to REITs as described below. Thus, Boston Properties, Inc.’s proportionate share of the assets and items of income of Boston Properties Limited Partnership, including Boston Properties Limited Partnership’s share of the assets and liabilities and items of income with respect to any partnership in which it holds an interest, will be treated as Boston Properties, Inc.’s assets and liabilities and its items of income for purposes of applying the requirements described in this prospectus. Boston Properties, Inc. has control over Boston Properties Limited Partnership and substantially all of the partnerships and limited liability company subsidiaries of Boston Properties Limited Partnership and intends to operate them in a manner that is consistent with the requirements for the qualification of Boston Properties, Inc. as a REIT.

Income Tests Applicable to REITs

To qualify as a REIT, we must satisfy two gross income tests. First, at least 75% of our gross income, excluding gross income from prohibited transactions, for each taxable year must be derived directly or indirectly from investments relating to real property or mortgages on real property, including “rents from real property,” gains on the disposition of real estate, dividends paid by another REIT, and interest on obligations secured by mortgages on real property or on interests in real property, or from some types of temporary investments.

Second, at least 95% of our gross income for each taxable year, excluding gross income from prohibited transactions and income from certain hedging arrangements, must be derived from any combination of income qualifying under the 75% test and dividends, interest, and gain from the sale or disposition of stock or securities.

Rents we received will qualify as rents from real property in satisfying the gross income requirements for a REIT described above only if several conditions are met. First, the amount of rent must not be based in whole or in part on the income or profits of any person. However, an amount received or accrued generally will not be excluded from the term “rents from real property” solely by reason of being based on a fixed percentage or percentages of receipts or sales. Second, rents received from a “related party tenant” will not qualify as rents from real property in satisfying the gross income tests unless the tenant is a taxable REIT subsidiary and either (i) at least 90% of the property is leased to unrelated tenants and the rent paid by the taxable REIT subsidiary is substantially comparable to the rent paid by the unrelated tenants for comparable space, or (ii) the property leased is a “qualified lodging facility,” as defined in Section 856(d)(9)(D) of the Code, and certain other conditions are satisfied. A tenant is a related party tenant if the REIT actually or constructively owns 10% or more of the tenant. Third, if rent attributable to personal property, leased in connection with a lease of real property, is greater than 15% of the total rent received under the lease, then the portion of rent attributable to the personal property will not qualify as rents from real property.

Generally, for rents to qualify as rents from real property for the purpose of satisfying the gross income tests, we may provide directly only an insignificant amount of services, unless those services are “usually or customarily rendered” in connection with the rental of real property and not otherwise considered “rendered to the occupant.” Accordingly, we may not provide “impermissible services” to tenants (except through an independent contractor from whom we derive no revenue and that meets other requirements or through a taxable REIT subsidiary) without giving rise to “impermissible tenant service income.” Impermissible tenant service income is deemed to be at least 150% of the direct cost to us of providing the service. If the impermissible tenant service income exceeds 1% of our total income from a property, then all of the income from that property will fail to qualify as rents from real property. If the total amount of impermissible tenant service income from a property does not exceed 1% of our total income from the property, the services will not “taint” the other income from the property (that is, it will not cause the remaining rent paid by tenants of that property to fail to qualify as rents from real property), but the impermissible tenant service income will not qualify as rents from real property.

We have not charged, and do not anticipate charging, rent that is based in whole or in part on the income or profits of any person. We have not derived, and do not anticipate deriving, significant rents from related party tenants. We have not derived, and do not anticipate deriving, rent attributable to personal property leased in connection with real property that exceeds 15% of the total rents. We have not derived, and do not anticipate deriving, impermissible tenant service income that exceeds 1% of our total income from any property.

If we fail to satisfy one or both of the 75% or 95% gross income tests for any taxable year, we may nevertheless qualify as a REIT for that year if we are entitled to relief under the Code. These relief provisions generally will be available if our failure to meet the tests is due to reasonable cause and not due to willful neglect, we attached a schedule of the sources of our income to our federal income tax return, and any incorrect information on the schedule is not due to fraud with intent to evade tax. It is not possible, however, to state whether in all circumstances we would be entitled to the benefit of these relief provisions. For example, if we fail to satisfy the gross income tests because nonqualifying income that we intentionally incur unexpectedly exceeds the limits on nonqualifying income, the IRS could conclude that the failure to satisfy the tests was not due to reasonable cause. If these relief provisions are inapplicable to a particular set of circumstances involving us, we will fail to qualify as a REIT. As discussed under “-Classification and Taxation of Boston Properties, Inc. as a REIT,” even if these relief provisions apply, a tax would be imposed based on the amount of nonqualifying income.

Asset Tests Applicable to REITs

At the close of each quarter of our taxable year, we must satisfy four tests relating to the nature of our assets:

(1)

at least 75% of the value of our total assets must be represented by real estate assets, cash, cash items and government securities. Real estate assets include, for this purpose, stock or debt instruments held for less than one year purchased with the proceeds of an offering of shares of our stock or certain debt;

(2)

not more than 25% of our total assets may be represented by securities other than those in the 75% asset class;

(3)

except for equity investments in REITs, qualified REIT subsidiaries, other securities that qualify as “real estate assets” for purposes of the test described in clause (1) or securities of our taxable REIT subsidiaries: the value of any one issuer’s securities owned by us may not exceed 5% of the value of our total assets; we may not own more than 10% of any one issuer’s outstanding voting securities; and we may not own more than 10% of the value of the outstanding securities of any one issuer; and

(4)

not more than 20% of our total assets may be represented by securities of one or more taxable REIT subsidiaries.

Securities for purposes of the asset tests may include debt securities. However, the 10% value test does not apply to certain “straight debt” and other excluded securities, as described in the Code including, but not limited to, any loan to an individual or estate, any obligation to pay rents from real property and any security issued by a REIT. In addition, (a) a REIT’s interest as a partner in a partnership is not considered a security for purposes of applying the 10% value test to securities issued by the partnership; (b) any debt instrument issued by a partnership (other than straight debt or another excluded security) will not be considered a security issued by the partnership if at least 75% of the partnership’s gross income is derived from sources that would qualify for the 75% REIT gross income test; and (c) any debt instrument issued by a partnership (other than straight debt or another excluded security) will not be considered a security issued by the partnership to the extent of the REIT’s interest as a partner in the partnership. In general, straight debt is defined as a written, unconditional promise to pay on demand or at a specific date a fixed principal amount, and the interest rate and payment dates on the debt must not be contingent on profits or the discretion of the debtor. In addition, straight debt may not contain a convertibility feature.

With respect to each issuer in which we currently own an interest that does not qualify as a REIT, a qualified REIT subsidiary, or a taxable REIT subsidiary, we believe that our pro rata share of the value of the securities, including debt, of any such issuer does not exceed 5% of the total value of our assets and that we comply with the 10% voting securities limitation and 10% value limitation with respect to each such issuer. In this regard, however, we cannot provide any assurance that the IRS might not disagree with our determinations. In addition, the securities that we own in our taxable REIT subsidiaries do not, in the aggregate, exceed 20% of the total value of our assets.

After initially meeting the asset tests at the close of any quarter, we will not lose our status as a REIT if we fail to satisfy the 25%, 20% and 5% asset tests and the 10% value limitation at the end of a later quarter solely by reason of changes in the relative values of our assets. If the failure to satisfy the 25%, 20% or 5% asset tests or the 10% value limitation results from an acquisition of securities or other property during a quarter, the failure can be cured by disposition of sufficient non-qualifying assets within 30 days after the close of that quarter. We intend to maintain adequate records of the value of our assets to ensure compliance with the asset tests and to take any available actions within 30 days after the close of any quarter as may be required to cure any noncompliance with the 25%, 20%, or 5% asset tests or 10% value limitation. If we fail the 5% asset test or the 10% asset test at the end of any quarter, and such failure is not cured within 30 days thereafter, we may dispose of sufficient assets or otherwise satisfy the requirements of such asset tests within six months after the last day of the quarter in which our identification of the failure to satisfy those asset tests occurred to cure the violation,

provided that the non-permitted assets do not exceed the lesser of 1% of the total value of our assets at the end of the relevant quarter or $10,000,000. If we fail any of the other asset tests, or our failure of the 5% and 10% asset tests is in excess of this amount, as long as the failure was due to reasonable cause and not willful neglect and, following our identification of the failure, we filed a schedule in accordance with the Treasury Regulations describing each asset that caused the failure, we are permitted to avoid disqualification as a REIT, after the thirty-day cure period, by taking steps to satisfy the requirements of the applicable asset test within six months after the last day of the quarter in which our identification of the failure to satisfy the REIT asset test occurred, including the disposition of sufficient assets to meet the asset tests and paying a tax equal to the greater of $50,000 or 35% of the net income generated by the nonqualifying assets during the period in which we failed to satisfy the relevant asset test.

Annual Distribution Requirements Applicable to REITs.

To qualify as a REIT, we are required to distribute dividends, other than capital gain dividends, to our stockholders each year in an amount at least equal to (1) the sum of (a) 90% of our REIT taxable income, computed without regard to the dividends paid deduction and our net capital gain and (b) 90% of the net income, after tax, from foreclosure property, minus (2) the sum of certain specified items of noncash income. In addition, if we recognize any built-in gain, we will be required, under Treasury regulations, to distribute at least 90% of the built-in gain, after tax, recognized on the disposition of the applicable asset. See “—Classification and Taxation of Boston Properties, Inc. as a REIT” for a discussion of the possible recognition of built-in gain. These distributions must be paid either in the taxable year to which they relate, or in the following taxable year if declared before we timely file our tax return for the prior year and if paid with or before the first regular dividend payment date after the declaration is made.

We believe that we have made and intend to continue to make timely distributions sufficient to satisfy the annual distribution requirements.

Our REIT taxable income has been and is expected to be less than our cash flow due to the allowance of depreciation and other noncash charges in computing REIT taxable income. Accordingly, we anticipate that we will generally have sufficient cash or liquid assets to enable us to satisfy the 90% distribution requirement. It is possible, however, that we, from time to time, may not have sufficient cash or other liquid assets to meet this distribution requirement or to distribute such greater amount as may be necessary to avoid income and excise taxation, due to timing differences between (a) the actual receipt of income and the actual payment of deductible expenses and (b) the inclusion of such income and the deduction of such expenses in arriving at our taxable income, or as a result of nondeductible expenses such as principal amortization or capital expenditures in excess of noncash deductions. In the event that such timing differences occur, we may find it necessary to arrange for borrowings or, if possible, pay taxable stock dividends in order to meet the dividend requirement.

Under some circumstances, we may be able to rectify a failure to meet the distribution requirement for a year by paying dividends to stockholders in a later year, which may be included in our deduction for dividends paid for the earlier year. We will refer to such dividends as “deficiency dividends.” Thus, we may be able to avoid being taxed on amounts distributed as deficiency dividends. We will, however, be required to pay interest based upon the amount of any deduction taken for deficiency dividends.

To the extent that we do not distribute (and are not deemed to have distributed) all of our net capital gain or distribute at least 90%, but less than 100%, of our REIT taxable income, as adjusted, we are subject to tax on these retained amounts at regular corporate tax rates.

(1) 85% of our REIT ordinary income for the year;

(2) 95% of our REIT capital gain net income for the year; and

(3) any undistributed taxable income from prior taxable years.

A REIT may elect to retain rather than distribute all or a portion of its net capital gains and pay the tax on the gains. In that case, a REIT may elect to have its stockholders include their proportionate share of the undistributed net capital gains in income as long-term capital gains and receive a credit for their share of the tax paid by the REIT. For purposes of the 4% excise tax described above, any retained amounts would be treated as having been distributed.

Prohibited Transactions

Net income derived from prohibited transactions is subject to 100% tax. The term “prohibited transactions” generally includes a sale or other disposition of property (other than foreclosure property) that is held primarily for sale to customers in the ordinary course of a trade or business. We intend to hold our properties for investment with a view to long-term appreciation, to engage in the business of owning and operating properties and to make sales of properties that are consistent with our investment objectives. Whether property is held “primarily for sale to customers in the ordinary course of a trade or business,” however, depends on the specific facts and circumstances. No assurance can be given that any particular property in which we hold a direct or indirect interest will not be treated as property held for sale to customers, or that certain safe-harbor provisions of the Code that prevent such treatment will apply. The 100% tax will not apply to gains from the sale of property held through a taxable REIT subsidiary or other taxable corporation, although such income will be subject to tax at regular corporate income tax rates.

Foreclosure Property

Foreclosure property is real property (including interests in real property) and any personal property incident to such real property (1) that is acquired by a REIT as a result of the REIT having bid in the property at foreclosure, or having otherwise reduced the property to ownership or possession by agreement or process of law, after there was a default (or default was imminent) on a lease of the property or a mortgage loan held by the REIT and secured by the property, (2) for which the related loan or lease was made, entered into or acquired by the REIT at a time when default was not imminent or anticipated and (3) for which such REIT makes an election to treat the property as foreclosure property. REITs generally are subject to tax at the maximum corporate rate (currently 35%) on any net income from foreclosure property, including any gain from the disposition of the foreclosure property, other than income that would otherwise be qualifying income for purposes of the 75% gross income test. Any gain from the sale of property for which a foreclosure property election has been made will not be subject to the 100% tax on gains from prohibited transactions described above, even if the property is held primarily for sale to customers in the ordinary course of a trade or business.

Hedging Transactions

We may enter into hedging transactions with respect to one or more of our assets or liabilities. Hedging transactions could take a variety of forms, including interest rate swaps or cap agreements, options, futures contracts, forward rate agreements or similar financial instruments. Except to the extent provided by Treasury regulations, any income from a hedging transaction to manage risk of interest rate or price changes or currency fluctuations with respect to borrowings made or to be made, or ordinary obligations incurred or to be incurred by us to acquire or own real estate assets, which is clearly identified as such before the close of the day on which it was acquired, originated or entered into, including gain from the disposition of such a transaction, will not constitute gross income for purposes of the 95% gross income test (but generally will constitute non-qualifying gross income for purposes of the 75% income test). To the extent we enter into other types of hedging transactions, the income from those transactions is likely to be treated as non-qualifying income for purposes of both the 75% and 95% gross income tests. We intend to structure any hedging transactions in a manner that does not jeopardize our ability to qualify as a REIT.

Proposed Legislation under the Publicly Traded Partnership Rules

Legislation was recently introduced in Congress that would treat publicly traded partnerships as corporations for federal income tax purposes if the partnership directly or indirectly derives income from certain investment adviser or asset management services. Because certain of Boston Properties Limited Partnership’s current activities could constitute investment adviser or asset management services as defined for these purposes, unless transfers of ownership of interests in Boston Properties Limited Partnership are limited in a manner that complies with certain regulatory safe harbors or another exception applies, it is possible that this legislation, if enacted, could cause Boston Properties Limited Partnership to be taxable as a corporation. Classification of Boston Properties Limited Partnership as a corporation would also cause Boston Properties, Inc. to fail to qualify as a REIT. Under a transitional rule contained in one version of the proposed legislation Boston Properties Limited Partnership would be exempt from the new rules until its taxable year beginning January 1, 2013. An alternative proposal, however, would shorten the transition period to make the new law applicable to existing publicly-traded partnerships beginning January 1, 2008, and it is possible that any legislation ultimately enacted could be effective immediately, or possibly even retroactively.

Congress is also considering legislative proposals to treat all or part of certain income allocated to a partner by a partnership in respect of certain services provided to or for the benefit of the partnership (“carried interest revenue”) as ordinary income for U.S. federal income tax purposes. While the current legislative proposal provides that such income will nevertheless retain its original character for purposes of the REIT qualification tests, it is not clear what form any such final legislation would take. Furthermore, under the proposed legislation, carried interest revenue could be treated as non-qualifying income for purposes of the “qualifying income” exception to the publicly-traded partnership rules. If enacted, this could result in Boston Properties Limited Partnership being taxable as a corporation for U.S. federal income tax purposes if the amount of any such carried interest revenue plus any other non-qualifying income earned by Boston Properties Limited Partnership exceeds 10% of its gross income in any taxable year.

Failure of Boston Properties, Inc. to Qualify as a REIT

In the event we violate a provision of the Code that would result in our failure to qualify as a REIT, specified relief provisions will be available to us to avoid such disqualification if (1) the violation is due to reasonable cause and not willful neglect, (2) we pay a penalty of $50,000 for each failure to satisfy the provision and (3) the violation does not include a violation under the gross income or asset tests described above (for which other specified relief provisions are available). This cure provision reduces the instances that could lead to our disqualification as a REIT for violations due to reasonable cause. If we fail to qualify for taxation as a REIT in any taxable year, and the relief provisions of the Code do not apply, we will be subject to tax, including any applicable alternative minimum tax, on our taxable income at regular corporate rates. Distributions to our stockholders in any year in which we are not a REIT will not be deductible by us, nor will they be required to be made. In this situation, to the extent of current and accumulated earnings and profits, and, subject to limitations of the Code, distributions to our stockholders through 2010 will generally be taxable to stockholders who are individual U.S. stockholders at a maximum rate of 15%, and dividends received by our corporate U.S. stockholders may be eligible for the dividends received deduction. Unless we are entitled to relief under specific statutory provisions, we will also be disqualified from re-electing to be taxed as a REIT for the four taxable years following a year during which qualification was lost. It is not possible to state whether, in all circumstances, we will be entitled to this statutory relief.

Taxation of shareholders and potential tax consequences of their investment in shares of common stock or preferred stock

Taxation of Taxable U.S. Stockholders

The term “U.S. stockholder” means a holder of shares of our common stock or preferred stock who, for United States federal income tax purposes, is:

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a citizen or resident of the United States;

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a corporation (including an entity treated as a corporation for United States federal income tax purposes) created or organized under the laws of the United States or of a political subdivision of the United States;

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an estate, the income of which is subject to United States federal income taxation regardless of its source; or

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any trust if (1) a United States court is able to exercise primary supervision over the administration of such trust and one or more United States persons have the authority to control all substantial decisions of the trust or (2) it has a valid election in place to be treated as a United States person.

The term “non-U.S. stockholder” shall refer to any owners of our common or preferred stock that are not U.S. stockholders for purposes of this Registration.

If a partnership or an entity treated as a partnership for federal income tax purposes holds our stock, the federal income tax treatment of a partner in the partnership will generally depend on the status of the partner and the activities of the partnership. If you are a partner in a partnership holding our common stock or preferred stock, you should consult your own tax advisor regarding the consequences of the ownership and disposition of shares of our stock by the partnership.

Dividends

As long as we qualify as a REIT, a taxable U.S. stockholder must generally take into account as ordinary income distributions made out of current or accumulated earnings and profits that we do not designate as capital gain dividends. Distributions on our preferred stock will be treated as made out of any available earnings and profits in priority to distributions on our common stock. Dividends paid to a non-corporate U.S. stockholder generally will not qualify for the 15% tax rate for “qualified dividend income.” Qualified dividend income generally includes dividends paid to most United States non-corporate taxpayers by domestic C corporations and certain qualified foreign corporations. Because we are not generally subject to United States federal income tax on the portion of our REIT taxable income distributed to our stockholders, our dividends generally will not be eligible for the 15% rate on qualified dividend income. As a result, our ordinary REIT dividends will continue to be taxed at the higher tax rate applicable to ordinary income. Currently, the highest marginal individual income tax rate on ordinary income is 35%. However, the 15% tax rate for qualified dividend income will apply to our ordinary REIT dividends (1) attributable to dividends received by us from non-REIT corporations, such as our taxable REIT subsidiaries, and (2) to the extent attributable to income upon which we have paid corporate income tax (e.g., to the extent that we distribute less than 100% of our taxable income). The preferential rates on qualified dividend income will expire on January 31, 2010 unless extended by Congress. In general, to qualify for the reduced tax rate on qualified dividend income, a stockholder must hold our stock for more than 60 days during the 120-day period beginning on the date that is 60 days before the date on which our stock becomes ex-dividend. Dividends paid to a corporate U.S. stockholder will not qualify for the dividends received deduction generally available to corporations. If we declare a distribution in October, November, or December of any year that is payable to a U.S. stockholder of record on a specified date in any such month, such distribution will be treated as both paid by us and received by the U.S. stockholder on December 31 of such year, provided that we actually pay the distribution during January of the following calendar year.

A U.S. stockholder generally will recognize distributions that we designate as capital gain dividends as long-term capital gain without regard to the period for which the U.S. stockholder has held its common stock. We generally will designate our capital gain dividends as 15% or 25% rate distributions. See “—Capital Gains and Losses.” A corporate U.S. stockholder, however, may be required to treat up to 20% of certain capital gain dividends as ordinary income.

We may elect to retain and pay income tax on the net long-term capital gain that we receive in a taxable year. In that case, we may elect to designate the retained amount as a capital gain dividend with the result that a

U.S. stockholder would be taxed on its proportionate share of our undistributed long-term capital gain. The U.S. stockholder would receive a credit or refund for its proportionate share of the tax we paid. The U.S. stockholder would increase the basis in its common stock by the amount of its proportionate share of our undistributed long-term capital gain, minus its share of the tax we paid.

A U.S. stockholder will not incur tax on a distribution in excess of our current and accumulated earnings and profits if the distribution does not exceed the adjusted basis of the U.S. stockholder’s stock. Instead, the distribution will reduce the adjusted basis of such stock. A U.S. stockholder will recognize gain upon a distribution in excess of both our current and accumulated earnings and profits and the U.S. stockholder’s adjusted basis in his or her stock as long-term capital gain or short-term capital gain, depending on whether the U.S. stockholder’s holding period exceeds one year.

We will notify stockholders after the close of our taxable year as to the portions of the distributions attributable to that year that constitute ordinary income, return of capital, and capital gain. Ordinary income and capital gain must be allocated proportionately among taxable dividends on both our preferred stock and common stock.

Stockholders may not include in their individual income tax returns any of our net operating losses or capital losses. Instead, these losses are generally carried over by us for potential offset against our future income. Taxable distributions from us and gain from the disposition of our common stock will not be treated as passive activity income and, therefore, stockholders generally will not be able to apply any “passive activity losses,” such as losses from certain types of limited partnerships in which the stockholder is a limited partner, against such income. In addition, taxable distributions from us and gain from the disposition of our common stock generally will be treated as investment income for purposes of the investment interest limitations.

Taxation of U.S. Stockholders on the Disposition of Common Stock or Preferred Stock

In general, a U.S. stockholder who is not a dealer in securities must treat any gain or loss realized upon a taxable disposition of our stock as long-term capital gain or loss if the U.S. stockholder has held our stock for more than one year. Otherwise, the U.S. stockholder must treat any such gain or loss as short-term capital gain or loss. However, a U.S. stockholder must treat any loss upon a sale or exchange of our stock held by such stockholder for six months or less as a long-term capital loss to the extent of capital gain dividends and any other actual or deemed distributions from us that such U.S. stockholder treats as long-term capital gain. All or a portion of any loss that a U.S. stockholder realizes upon a taxable disposition of our common stock or preferred stock may be disallowed if the U.S. stockholder repurchases our common stock or preferred stock within 30 days before or after the disposition.

A redemption by us of any redeemable preferred stock we may issue could be treated either as a taxable disposition of shares or as a dividend, depending on the applicable facts and circumstances. In the event we issue any redeemable preferred stock, the Prospectus Supplement will discuss the tax consequences of owning such securities in greater detail.

Capital Gains and Losses

The tax rate differential between capital gain and ordinary income for non-corporate taxpayers may be significant. A taxpayer generally must hold a capital asset for more than one year for gain or loss derived from its sale or exchange to be treated as long-term capital gain or loss. The highest marginal individual income tax rate is 35%. The maximum tax rate on long-term capital gains applicable to non-corporate taxpayers is 15% for sales and exchanges of assets held for more than one year occurring through December 31, 2010 and 20% thereafter. The maximum tax rate on long-term capital gain from the sale or exchange of “section 1250 property,” or depreciable real property, is 25% to the extent that such gain would have been treated as ordinary income on

depreciation recapture if the property were “section 1245 property” (“Unrecaptured Section 1250 Gains”). With respect to distributions that we designate as capital gain dividends and any retained capital gain that we are deemed to distribute, we generally may designate whether such a distribution is taxable to our non-corporate stockholders as long term capital gains or Unrecaptured Section 1250 Gains. In addition, the characterization of income as capital gain or ordinary income may affect the deductibility of capital losses. A non-corporate taxpayer may deduct capital losses not offset by capital gains against its ordinary income only up to a maximum annual amount of $3,000. A non-corporate taxpayer may carry forward unused capital losses indefinitely. A corporate taxpayer must pay tax on its net capital gain at ordinary corporate rates. A corporate taxpayer can deduct capital losses only to the extent of capital gains, with unused losses being carried back three years and forward five years.

Information Reporting Requirements and Backup Withholding

We will report to our stockholders and to the IRS the amount of distributions we pay during each calendar year, and the amount of tax we withhold, if any. Under the backup withholding rules, a stockholder may be subject to backup withholding at a current rate of up to 28% with respect to distributions unless the holder:

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is a corporation or comes within certain other exempt categories and, when required, demonstrates this fact; or

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provides a taxpayer identification number, certifies as to no loss of exemption from backup withholding, and otherwise complies with the applicable requirements of the backup withholding rules.

A stockholder who does not provide us with its correct taxpayer identification number also may be subject to penalties imposed by the IRS. Any amount paid as backup withholding will be creditable against the stockholder’s income tax liability. In addition, we may be required to withhold a portion of any dividends or capital gain distributions to any stockholders who fail to certify their non-foreign status to us. For a discussion of the backup withholding rules as applied to non-U.S. stockholders, see “—Taxation of Non-U.S. Stockholders.”

Taxation of Tax-Exempt Stockholders

Tax-exempt entities, including qualified employee pension and profit sharing trusts and individual retirement accounts, generally are exempt from federal income taxation. However, they are subject to taxation on their unrelated business taxable income. While many investments in real estate generate unrelated business taxable income, the IRS has issued a ruling that dividend distributions from a REIT to an exempt employee pension trust do not constitute unrelated business taxable income so long as the exempt employee pension trust does not otherwise use the stock of the REIT in an unrelated trade or business of the pension trust. Based on that ruling, amounts that we distribute to tax-exempt stockholders generally should not constitute unrelated business taxable income. However, if a tax-exempt stockholder were to finance its acquisition of common stock or preferred stock with debt, a portion of the income that it receives from us would constitute unrelated business taxable income pursuant to the “debt-financed property” rules. Furthermore, social clubs, voluntary employee benefit associations, supplemental unemployment benefit trusts, and qualified group legal services plans that are exempt from taxation under special provisions of the federal income tax laws are subject to different unrelated business taxable income rules, which generally will require them to characterize distributions that they receive from us as unrelated business taxable income. Finally, in certain circumstances, a qualified employee pension or profit sharing trust that owns more than 10% of our stock must treat a percentage of the dividends that it receives from us as unrelated business taxable income. Such percentage is equal to the gross income we derive from an unrelated trade or business, determined as if we were a pension trust, divided by our total gross income for the year in which we pay the dividends. That rule applies to a pension trust holding more than 10% of our shares only if:

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the percentage of our dividends that the tax-exempt trust must treat as unrelated business taxable income is at least 5%;

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we qualify as a REIT by reason of the modification of the rule requiring that no more than 50% of the value of our stock be owned by five or fewer individuals that allows the beneficiaries of the pension trust to be treated as holding our stock in proportion to their actuarial interests in the pension trust; and

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either (a) one pension trust owns more than 25% of the value of our stock; or (b) a group of pension trusts individually holding more than 10% of the value of our stock collectively owns more than 50% of the value of our stock.

Taxation of Non-U.S. Stockholders

The rules governing United States federal income taxation of nonresident alien individuals, foreign corporations, foreign partnerships, and other foreign stockholders are complex. This section is only a summary of such rules. We urge non-U.S. stockholders to consult their own tax advisors to determine the impact of federal, state, and local income tax laws on ownership of our stock, including any reporting requirements.

A non-U.S. stockholder who receives a distribution that is not attributable to gain from our sale or exchange of United States real property interests, as defined below, and that we do not designate as a capital gain dividend or retained capital gain will recognize ordinary income to the extent that we pay the distribution out of our current or accumulated earnings and profits. A withholding tax equal to 30% of the gross amount of the distribution ordinarily will apply unless an applicable tax treaty reduces or eliminates the tax. However, if a distribution is treated as effectively connected with the non-U.S. stockholder’s conduct of a United States trade or business, the non-U.S. stockholder generally will be subject to federal income tax on the distribution at graduated rates, in the same manner as U.S. stockholders are taxed on distributions, and also may be subject to the 30% branch profits tax in the case of a corporate non-U.S. stockholder. We plan to withhold United States income tax at the rate of 30% on the gross amount of any distribution paid to a non-U.S. stockholder unless either:

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a lower treaty rate applies and the non-U.S. stockholder files an IRS Form W-8BEN evidencing eligibility for that reduced rate with us; or

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the non-U.S. stockholder files an IRS Form W-8ECI with us claiming that the distribution is effectively connected income.

A non-U.S. stockholder will not incur tax on a distribution in excess of our current and accumulated earnings and profits if the excess portion of the distribution does not exceed the adjusted basis of its stock. Instead, the excess portion of the distribution will reduce the adjusted basis of that stock. A non-U.S. stockholder will be subject to tax on a distribution that exceeds both our current and accumulated earnings and profits and the adjusted basis of its stock, if the non-U.S. stockholder otherwise would be subject to tax on gain from the sale or disposition of its stock, as described below. Because we generally cannot determine at the time we make a distribution whether or not the distribution will exceed our current and accumulated earnings and profits, we normally will withhold tax on the entire amount of any distribution at the same rate as we would withhold on a dividend. However, a non-U.S. stockholder may obtain a refund of amounts that we withhold if we later determine that a distribution in fact exceeded our current and accumulated earnings and profits.

Additional withholding regulations may require us to withhold 10% of any distribution that exceeds our current and accumulated earnings and profits. Consequently, although we intend to withhold at a rate of 30% on the entire amount of any distribution, to the extent that we do not do so, we will withhold at a rate of 10% on any portion of a distribution not subject to withholding at a rate of 30%.

For any year in which we qualify as a REIT, a non-U.S. stockholder will incur tax on distributions by us that are attributable to gain from our sale or exchange of “U.S. real property interests” under special provisions of the United States federal income tax laws known as the Foreign Investment in Real Property Act, or “FIRPTA.” The term “U.S. real property interests,” or USRPIs, includes interests in real property and shares in corporations at least 50% of whose assets consists of interests in real property. Under those rules, a non-U.S. stockholder is taxed

on distributions by us attributable to gain from sales of USRPIs as if the gain were effectively connected with a United States trade or business of the non-U.S. stockholder. A non-U.S. stockholder thus would be taxed on such a distribution at the normal capital gain rates applicable to U.S. stockholders, subject to applicable alternative minimum tax and a special alternative minimum tax in the case of a nonresident alien individual. A non-U.S. corporate stockholder not entitled to treaty relief or exemption also may be subject to the 30% branch profits tax on such a distribution. However, distributions by us of our gains from the sales of USRPIs will not be taxable under FIRPTA to non-U.S. stockholders if such stockholders own less than 5% in value of a class of REIT stock that is publicly traded. Instead, such dividends will be taxed as ordinary REIT dividends as discussed above. Except to the extent this exception applies, we must withhold 35% of any distribution that we could designate as a capital gain dividend. Furthermore, under newly enacted Section 1445(e)(6) of the Code, except as may be provided in future regulations, we are required to withhold 35% of any portion of a distribution that is treated under the look-through rules of Section 897(h)(1) as gain realized from the sale or exchange of a USRPI. The application of these rules in certain situations is unclear, and in the absence of clear guidance, we may be required to withhold on amounts in excess of the tax actually payable by non-U.S. stockholders. A non-U.S. stockholder may receive a credit against its tax liability for the amount we withhold.

A non-U.S. stockholder generally will not incur tax under FIRPTA with respect to gain on a sale of our common stock or preferred stock as long as at all times non-U.S. persons hold, directly or indirectly, less than 50% in value of our stock. We cannot assure you that that test will be met. However, a non-U.S. stockholder will not incur tax under FIRPTA on a disposition of the shares of our common or preferred stock if: (i) such non-U.S. stockholder owned, actually or constructively, at all times during a specified testing period, 5% or less of the total fair market value of a class of our stock that is “regularly traded” on an established securities market; (ii) such non-U.S. stockholder owned shares of a class of our stock that is not publicly traded on an established securities market if the fair market value of the shares acquired by such non-U.S. stockholder on the date of acquisition did not exceed 5% of the regularly traded class of stock with the lowest fair market value; or (iii) such non-U.S. stockholder owned shares of a class of our stock that is convertible into a class of our stock that is regularly traded if the fair market value of the shares acquired by such non-U.S. stockholder on the date of acquisition did not exceed 5% of the total fair market value of the regularly traded class of stock that such shares are convertible into. For as long as our common stock is regularly traded on an established securities market, a non-U.S. stockholder should not incur tax under FIRPTA with respect to gain on a sale of our common stock unless it owns, actually or constructively, more than 5% of our common stock. If the gain on the sale of our stock were taxed under FIRPTA, a non-U.S. stockholder would be taxed on that gain in the same manner as U.S. stockholders subject to applicable alternative minimum tax and a special alternative minimum tax in the case of nonresident alien individuals. Furthermore, a non-U.S. stockholder generally will incur tax on gain not subject to FIRPTA if:

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the gain is effectively connected with the non-U.S. stockholder’s United States trade or business, in which case the non-U.S. stockholder will be subject to the same treatment as U.S. stockholders with respect to such gain; or

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the non-U.S. stockholder is a nonresident alien individual who was present in the United States for 183 days or more during the taxable year and has a “tax home” in the United States, in which case the non-U.S. stockholder will incur a 30% tax on his or her capital gains.

Generally, we must report annually to the IRS the amount of dividends paid to a non-U.S. stockholder, such holder’s name and address, and the amount of tax withheld, if any. A similar report is sent to the non-U.S. stockholder. Pursuant to tax treaties or other agreements, the IRS may make its reports available to tax authorities in the non-U.S. stockholder’s country of residence.

Payments of dividends or of proceeds from the disposition of stock made to a non-U.S. stockholder may be subject to information reporting and backup withholding unless such holder establishes an exemption, for example, by properly certifying its non-United States status on an IRS Form W-8BEN or another appropriate version of IRS Form W-8. Notwithstanding the foregoing, backup withholding may apply if either we or our paying agent has actual knowledge, or reason to know, that a non-U.S. stockholder is a United States person.

Backup withholding is not an additional tax. Rather, the United States income tax liability of persons subject to backup withholding will be reduced by the amount of tax withheld. If withholding results in an overpayment of taxes, a refund or credit may be obtained, provided the required information is furnished to the IRS.

State, Local and Foreign Taxes

We and/or holders of our stock may be subject to state and local taxation in various state or local jurisdictions, including those in which we or they transact business or reside. The foreign, state and local tax treatment of us and of holders of our stock may not conform to the United States federal income tax consequences discussed above. Consequently, prospective investors should consult their own tax advisors regarding the effect of state and local tax laws on an investment in Boston Properties, Inc. common stock or preferred stock.

Legislative or Other Actions Affecting REITs

The rules dealing with U.S. federal income taxation are constantly under review by persons involved in the legislative process and by the IRS and the U.S. Treasury Department. No assurance can be given as to whether, when, or in what form, U.S. federal income tax laws applicable to us and our stockholders may be enacted, amended or repealed. Changes to the federal tax laws and interpretations of federal tax laws could adversely affect an investment in Boston Properties, Inc. common stock.

Taxation of Holders of Certain Fixed Rate Debt Securities

This section describes the material United States federal income tax consequences of owning the fixed rate debt securities that Boston Properties, Inc. or Boston Properties Limited Partnership may offer for general information only. It is not tax advice. It applies only if the fixed rate debt securities purchased are not original issue discount or zero coupon debt securities and such fixed rate debt securities are acquired in the initial offering at the offering price. If these fixed rate debt securities are purchased at a price other than the offering price, the amortization bond premium or market discount rules may apply. Prospective holders should consult their own tax advisors regarding these possibilities.

The tax consequences of owning any zero coupon debt securities, original issue discount debt securities, floating rate debt securities, convertible or exchangeable debt securities, or indexed debt securities that we offer will be discussed in the applicable prospectus supplement.

Taxation of Taxable U.S. Holders

The term “U.S. Holder” means any beneficial owner of a debt security, other than an entity treated as a partnership for U.S. federal income tax purposes, that for United States federal income tax purposes, is:

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a citizen or resident of the United States;

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an estate, the income of which is subject to United States federal income taxation regardless of its source; or

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The term “Non-U.S. Holder” shall refer to a beneficial owner of a debt security, other than an entity treated as a partnership for U.S. federal income tax purposes, that is not a U.S. Holder.

If a partnership (including for this purpose any entity treated as a partnership for U.S. federal income tax purposes) is a beneficial owner of debt securities, the treatment of a partner in the partnership will generally depend upon the status of the partner and upon the activities of the partnership. A holder of debt securities that is a partnership, and partners in such partnership, should consult their tax advisors about the U.S. federal income tax consequences of purchasing, holding and disposing of debt securities.

Interest and Original Issue Discount.

If the issue price of a debt security is less than its stated redemption price at maturity, then the debt security will be treated as being issued with original issue discount (“OID”) for U.S. federal income tax purposes unless the difference between the debt security’s issue price and its stated redemption price at maturity is less than a statutory de minimis amount. Generally, the “issue price” of a debt security is the first price at which a substantial amount of the debt securities is sold to purchasers other than bond houses, brokers or similar persons or organizations acting in the capacity of underwriters, placement agents or wholesalers. The “stated redemption price at maturity” of a debt security is the total of all payments to be made under the debt security other than qualified stated interest (generally, stated interest that is unconditionally payable in cash or property at least annually at a single fixed rate or at certain floating rates that properly take into account the length of the interval between stated interest payments); and, generally, is expected to equal the principal amount of the debt security. The amount of OID on the debt security will be de minimis if it is less than 0.0025 multiplied by the product of the stated redemption price at maturity and the number of complete years to maturity.

If the difference between the issue price and the stated redemption price at maturity of a debt security is more than the statutory de minimis amount, the debt security will be treated as having been issued with OID. The amount of OID on a debt security, which is equal to the difference, must be included in income as ordinary interest as it accrues under a constant yield method in advance of receipt of the cash payments attributable to such income, regardless of such U.S. Holder’s regular method of tax accounting.

Stated interest on a debt security generally will be included in the income of a U.S. Holder as ordinary income at the time such interest is received or accrued, in accordance with the U.S. Holder’s regular method of tax accounting.

Disposition of the Debt Securities.

Upon the sale, exchange, redemption, repurchase, retirement or other disposition of a debt security, a U.S. Holder generally will recognize capital gain or loss equal to the difference between (i) the amount of cash proceeds and the fair market value of any property received on the disposition (except to the extent such amount is attributable to accrued but unpaid stated interest, which is taxable as ordinary income if not previously included in such holder’s income) and (ii) such U.S. Holder’s adjusted tax basis in the debt security. A U.S. Holder’s adjusted tax basis in a debt security generally will equal the cost of the debt security to such Holder increased by the amount of OID previously included in income by such Holder. Capital gain or loss recognized upon the disposition of a debt security will be a long-term capital gain or loss if the debt security was held for more than one year. The maximum tax rate on long-term capital gains to non-corporate U.S. Holders is generally 15% (for taxable years through December 31, 2010). The deductibility of capital losses is subject to limitations.

Information Reporting and Backup Withholding

We will report to our U.S. Holders and to the IRS the amount of stated interest payments and payments of the proceeds from the sale, exchange, redemption, repurchase, retirement or other disposition of a debt security made to a U.S. Holder, and the amount we withhold, if any. Under the backup withholding rules, a U.S. Holder may be subject to backup withholding at a current rate of up to 28% with respect to distributions unless the holder

•

is a corporation or comes within certain exempt categories and, when required, demonstrates that fact, or

•

provides a taxpayer identification number, certifies as to no loss of exemption from backup withholding, and otherwise complies with the applicable requirements of the backup withholding rules.

A noteholder who does not provide us with its correct taxpayer identification number also may be subject to penalties imposed by the IRS. Any amount paid as backup withholding will be creditable against the noteholder’s income tax liability. For a discussion of the backup withholding rules as applied to non-U.S. Holders, see “Taxation of Non-U.S. Holders of Debt Securities.”

Taxation of Non-U.S. Holders of Debt Securities

The rules governing the U.S. federal income taxation of a Non-U.S. Holder are complex and no attempt will be made herein to provide more than a summary of such rules. Non-U.S. Holders should consult their tax advisors to determine the effect of U.S. federal, state, local and foreign tax laws, as well as tax treaties, with regard to an investment in the debt securities.

Interest and Original Issue Discount. A Non-U.S. Holder holding the debt securities on its own behalf generally will be exempt from U.S. federal income and withholding taxes on payments of interest (including OID) on a debt security so long as such payments are not effectively connected with the conduct of a trade or business in the United States by the Non-U.S. Holder, unless such Non-U.S. Holder is (i) a direct or indirect 10% or greater partner (as defined in section 871(h)(3) of the Code) in the Operating Partnership in the event that debt is issued by the Operating Partnership, (ii) a direct or indirect 10% or greater stockholder of the REIT in the event that debt is issued by the REIT, (iii) a controlled foreign corporation related to the Operating Partnership or the REIT, as applicable, or (iv) a bank extending credit pursuant to a loan agreement entered into in the ordinary course of its trade or business.

In order for a Non-U.S. Holder that is an individual or corporation (or entity treated as such for U.S. federal income tax purposes) to qualify for the exemption from taxation on noncontingent interest (including OID), the “withholding agent” (generally, the last U.S. payor or a non-U.S. payor who is a qualified intermediary or withholding foreign partnership) must have received a statement (generally made on IRS Form W-8BEN) from the individual or corporation that: (i) is signed under penalties of perjury by the beneficial owner of the debt security, (ii) certifies that such owner is not a U.S. Holder and (iii) provides the beneficial owner’s name and address. A Non-U.S. Holder that is not an individual or corporation (or an entity treated as a corporation for U.S. federal income tax purposes) holding the debt securities on its own behalf may have substantially increased reporting requirements and should consult its tax advisor.

To the extent that interest income (including OID) with respect to a debt security is not exempt from U.S. withholding tax as described above, a Non-U.S. Holder may still be able to eliminate or reduce such taxes under an applicable income tax treaty.

Disposition of the Debt Securities. Any gain realized on the sale, redemption, exchange, retirement, repurchase or other taxable disposition of a debt security by a Non-U.S. Holder (except to the extent such amount is attributable to accrued but unpaid stated interest, which would be taxable as described above) will be exempt from U.S. federal income and withholding taxes so long as: (i) the gain is not effectively connected with the conduct of a trade or business in the United States by the Non-U.S. Holder, (ii) in the case of a foreign individual, the Non-U.S. Holder is not present in the United States for 183 days or more in the taxable year, and (iii) the debt securities do not constitute USRPIs, within the meaning of FIRPTA.

Except to the extent that an applicable income tax treaty otherwise provides, a Non-U.S. Holder whose gain or interest income with respect to a debt security is effectively connected with the conduct of a trade or business in the United States by such Non-U.S. Holder, although exempt from the withholding tax previously discussed provided the holder furnishes an IRS form W-8ECI, will generally be subject to U.S. federal income tax on the gain or interest income at regular U.S. federal income tax rates, as if the holder were a U.S. person. In addition, if the Non-U.S. Holder is a foreign corporation, it may be subject to a branch profits tax equal to 30 percent of its “dividend equivalent amount” within the meaning of the Code for the taxable year, subject to adjustment, unless it qualifies for a lower rate or an exemption under an applicable tax treaty.

Information reporting requirements and backup withholding generally will not apply to payments on a debt security to a Non-U.S. Holder if the statement described in “Non-U.S. Holders of the Debt Securities” is duly provided by such holder, provided that the withholding agent does not have actual knowledge that the holder is a United States person. Information reporting requirements and backup withholding will not apply to any payment of the proceeds of the sale of a debt security effected outside the United States by a foreign office of a “broker” (as defined in applicable Treasury Regulations), unless such broker (i) is a United States person, (ii) derives 50% or more of its gross income for certain periods from the conduct of a trade or business in the United States, (iii) is a controlled foreign corporation within the meaning of the Code or (iv) is a U.S. branch of a foreign bank or a foreign insurance company. Payment of the proceeds of any such sale effected outside the United States by a foreign office of any broker that is described in (i), (ii) or (iii) of the preceding sentence will not be subject to backup withholding, but will be subject to the information reporting requirements unless such broker has documentary evidence in its records that the beneficial owner is a Non-U.S. Holder and certain other conditions are met, or the beneficial owner otherwise establishes an exemption. Payment of the proceeds of any such sale to or through the United States office of a broker is subject to information reporting and backup withholding requirements, unless the beneficial owner of the debt security provides the statement described in “—Non-U.S. Holders of the Debt Securities” or otherwise establishes an exemption. Any amount withheld from a payment to a holder of a debt security under the backup withholding rules is allowable as a credit against such holder’s U.S. federal income tax liability (which might entitle such holder to a refund), provided that such holder furnishes the required information to the IRS.

PLAN OF DISTRIBUTION

We may sell the securities in any one or more of the following ways:

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directly to investors, including through a specific bidding, auction or other process;

•

to investors through agents;

•

directly to agents;

•

to or through brokers or dealers;

•

to the public through underwriting syndicates led by one or more managing underwriters;

•

to one or more underwriters acting alone for resale to investors or to the public; and

•

through a combination of any such methods of sale.

Boston Properties, Inc.’s common stock or preferred stock may be issued upon conversion of debt securities or preferred stock of Boston Properties, Inc. or in exchange for debt securities of Boston Properties Limited Partnership. Securities may also be issued upon exercise of warrants of Boston Properties, Inc. Boston Properties, Inc. and Boston Properties Limited Partnership reserve the right to sell securities directly to investors on their own behalf in those jurisdictions where they are authorized to do so.

If we sell securities to a dealer acting as principal, the dealer may resell such securities at varying prices to be determined by such dealer in its discretion at the time of resale without consulting with us and such resale prices may not be disclosed in the applicable prospectus supplement.

Any underwritten offering may be on a best efforts or a firm commitment basis. We may also offer securities through subscription rights distributed to our stockholders on a pro rata basis, which may or may not be transferable. In any distribution of subscription rights to stockholders, if all of the underlying securities are not subscribed for, we may then sell the unsubscribed securities directly to third parties or may engage the services of one or more underwriters, dealers or agents, including standby underwriters, to sell the unsubscribed securities to third parties.

Sales of the securities may be effected from time to time in one or more transactions, including negotiated transactions:

•

at a fixed price or prices, which may be changed;

•

at market prices prevailing at the time of sale;

•

at prices related to prevailing market prices; or

•

at negotiated prices.

Any of the prices may represent a discount from the then prevailing market prices.

In the sale of the securities, underwriters or agents may receive compensation from us in the form of underwriting discounts or commissions and may also receive compensation from purchasers of the securities, for whom they may act as agents, in the form of discounts, concessions or commissions. Underwriters may sell the securities to or through dealers, and such dealers may receive compensation in the form of discounts, concessions or commissions from the underwriters and/or commissions from the purchasers for whom they may act as agents. Discounts, concessions and commissions may be changed from time to time. Dealers and agents that participate in the distribution of the securities may be deemed to be underwriters under the Securities Act, and any discounts, concessions or commissions they receive from us and any profit on the resale of securities they realize may be deemed to be underwriting compensation under applicable federal and state securities laws.

The applicable prospectus supplement will, where applicable:

•

identify any such underwriter, dealer or agent;

•

describe any compensation in the form of discounts, concessions, commissions or otherwise received from us by each such underwriter or agent and in the aggregate by all underwriters and agents;

•

describe any discounts, concessions or commissions allowed by underwriters to participating dealers;

•

identify the amounts underwritten; and

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identify the nature of the underwriter’s or underwriters’ obligation to take the securities.

Unless otherwise specified in the related prospectus supplement, each series of securities will be a new issue with no established trading market, other than shares of common stock of Boston Properties, Inc., which are listed on the NYSE. Any common stock sold pursuant to a prospectus supplement will be listed on the NYSE, subject to official notice of issuance. We may elect to list any series of debt securities or preferred stock, on an exchange, but we are not obligated to do so. It is possible that one or more underwriters may make a market in the securities, but such underwriters will not be obligated to do so and may discontinue any market making at any time without notice. No assurance can be given as to the liquidity of, or the trading market for, any offered securities.

We may enter into derivative transactions with third parties, or sell securities not covered by this prospectus to third parties in privately negotiated transactions. If disclosed in the applicable prospectus supplement, in connection with those derivative transactions third parties may sell securities covered by this prospectus and such prospectus supplement, including in short sale transactions. If so, the third party may use securities pledged by us or borrowed from us or from others to settle those short sales or to close out any related open borrowings of securities, and may use securities received from us in settlement of those derivative transactions to close out any related open borrowings of securities. If the third party is or may be deemed to be an underwriter under the Securities Act, it will be identified in the applicable prospectus supplements.

Until the distribution of the securities is completed, rules of the SEC may limit the ability of any underwriters and selling group members to bid for and purchase the securities. As an exception to these rules, underwriters are permitted to engage in some transactions that stabilize the price of the securities. Such transactions consist of bids or purchases for the purpose of pegging, fixing or maintaining the price of the securities.

Underwriters may engage in overallotment. If any underwriters create a short position in the securities in an offering in which they sell more securities than are set forth on the cover page of the applicable prospectus supplement, the underwriters may reduce that short position by purchasing the securities in the open market.

The lead underwriters may also impose a penalty bid on other underwriters and selling group members participating in an offering. This means that if the lead underwriters purchase securities in the open market to reduce the underwriters’ short position or to stabilize the price of the securities, they may reclaim the amount of any selling concession from the underwriters and selling group members who sold those securities as part of the offering.

In general, purchases of a security for the purpose of stabilization or to reduce a short position could cause the price of the security to be higher than it might be in the absence of such purchases. The imposition of a penalty bid might also have an effect on the price of a security to the extent that it were to discourage resales of the security before the distribution is completed.

We do not make any representation or prediction as to the direction or magnitude of any effect that the transactions described above might have on the price of the securities. In addition, we do not make any representation that underwriters will engage in such transactions or that such transactions, once commenced, will not be discontinued without notice.

Under agreements into which we may enter, underwriters, dealers and agents who participate in the distribution of the securities may be entitled to indemnification by us against or contribution towards certain civil liabilities, including liabilities under the applicable securities laws.

Underwriters, dealers and agents may engage in transactions with us, perform services for us or be our tenants in the ordinary course of business.

If indicated in the applicable prospectus supplement, we will authorize underwriters or other persons acting as our agents to solicit offers by particular institutions to purchase securities from us at the public offering price set forth in such prospectus supplement pursuant to delayed delivery contracts providing for payment and delivery on the date or dates stated in such prospectus supplement. Each delayed delivery contract will be for an amount no less than, and the aggregate amounts of securities sold under delayed delivery contracts shall be not less nor more than, the respective amounts stated in the applicable prospectus supplement. Institutions with which such contracts, when authorized, may be made include commercial and savings banks, insurance companies, pension funds, investment companies, educational and charitable institutions and others, but will in all cases be subject to our approval. The obligations of any purchaser under any such contract will be subject to the conditions that (a) the purchase of the securities shall not at the time of delivery be prohibited under the laws of any jurisdiction in the United States to which the purchaser is subject, and (b) if the securities are being sold to underwriters, we shall have sold to the underwriters the total amount of the securities less the amount thereof covered by the contracts. The underwriters and such other agents will not have any responsibility in respect of the validity or performance of such contracts.

To comply with applicable state securities laws, the securities offered by this prospectus will be sold, if necessary, in such jurisdictions only through registered or licensed brokers or dealers. In addition, securities may not be sold in some states unless they have been registered or qualified for sale in the applicable state or an exemption from the registration or qualification requirement is available and is complied with.

Underwriters, dealers or agents that participate in the offer of securities, or their affiliates or associates, may have engaged or engage in transactions with and perform services for, Boston Properties, Inc., Boston Properties Limited Partnership or our affiliates in the ordinary course of business for which they may have received or receive customary fees and reimbursement of expenses.

LEGAL MATTERS

Certain legal matters in connection with the offering will be passed upon for us by Goodwin Procter LLP, Boston, Massachusetts. In the ordinary course of business, Goodwin Procter LLP leases office space at some of our properties.

EXPERTS

The financial statements and management’s assessment of the effectiveness of internal control over financial reporting (which is included in Management’s Report on Internal Control over Financial Reporting) incorporated in this Prospectus by reference to Boston Properties, Inc. and Boston Properties Limited Partnership’s Current Reports on Form 8-K each dated July 25, 2007 have been so incorporated in reliance on the reports of PricewaterhouseCoopers LLP, an independent registered public accounting firm, given on the authority of said firm as experts in auditing and accounting.

PART II

INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14.

Other Expenses of Issuance and Distribution.

Generally, the expenses in connection with the issuance and distribution of the securities being registered will be borne by Boston Properties, Inc. and are set forth in the following table. All amounts except the registration fee are estimated in accordance with Instruction to Item 511 of Regulation S-K.


Registration fee	$	23,109
Legal fees and expenses	$	350,000
Blue Sky expenses	$	10,000
Accounting fees and expenses	$	350,000
Printing fees and expenses	$	300,000
Transfer Agent’s, Depositary’s and Trustees fees and expenses	$	100,000
Miscellaneous	$	116,891

Total	$	1,250,000

Item 15.

Indemnification of Directors and Officers.

Our certificate of incorporation and bylaws provide certain limitations on the liability of our directors and officers for monetary damages to Boston Properties. Our certificate of incorporation and bylaws obligate Boston Properties to indemnify its directors and officers, and permit Boston Properties to indemnify its employees and other agents, against certain liabilities incurred in connection with their service in such capacities. These provisions could reduce the legal remedies available to Boston Properties and our stockholders against these individuals.

Our certificate of incorporation limits the liability of our directors and officers to Boston Properties to the fullest extent permitted from time to time by the Delaware General Corporation Law. The Delaware General Corporation Law permits, but does not require, a corporation to indemnify its directors, officers, employees, or agents and expressly provides that the indemnification provided for under the Delaware General Corporation Law shall not be deemed exclusive of any indemnification right under any bylaw, vote of stockholders or disinterested directors, or otherwise. The Delaware General Corporation Law permits indemnification against expenses and certain other liabilities arising out of legal actions brought or threatened against such persons for their conduct on behalf of the corporation, provided that each such person acted in good faith and in a manner that he or she reasonably believed was in or not opposed to the corporation’s best interests and in the case of a criminal proceeding, had no reasonable cause to believe his or her conduct was unlawful. The Delaware General Corporation Law does not allow indemnification of directors in the case of an action by or in the right of the corporation (including stockholder derivative suits) unless the directors successfully defend the action or indemnification is ordered by the court.

Our certificate of incorporation contains a provision permitted by Delaware law that generally eliminates the personal liability of directors for monetary damages for breaches of their fiduciary duty, including breaches involving negligence or gross negligence in business combinations, unless the director has breached his or her duty of loyalty, failed to act in good faith, engaged in intentional misconduct or a knowing violation of law, paid a dividend or approved a stock repurchase in violation of the Delaware General Corporation Law, or obtained an improper personal benefit. The provision does not alter a director’s liability under the federal securities laws. In addition, this provision does not affect the availability of equitable remedies, such as an injunction or rescission, for breach of fiduciary duty.

Our bylaws provide that our directors and officers will be, and, in the discretion of our board of directors, non-officer employees may be, indemnified by us to the fullest extent authorized by Delaware law, as it now

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exists or may in the future be amended, against all expenses and liabilities actually and reasonably incurred in connection with service for or on behalf of Boston Properties. Our bylaws also provide that the right of directors and officers to indemnification shall be a contract right and shall not be exclusive of any other right now possessed or hereafter acquired under any bylaw, agreement, vote of stockholders, or otherwise.

We have entered into indemnification agreements with each of our directors and some of our officers. The indemnification agreements require, among other matters, that we indemnify our directors and officers to the fullest extent permitted by law and advance to the directors and officers all related expenses, subject to reimbursement if it is subsequently determined that indemnification is not permitted. Under these agreements, we must also indemnify and advance all expenses incurred by directors and officers seeking to enforce their rights under the indemnification agreements and may cover directors and officers under our directors’ and officers’ liability insurance. Although the form of indemnification agreement offers substantially the same scope of coverage afforded by law, it provides additional assurance to directors and officers that indemnification will be available because, as a contract, it cannot be modified unilaterally in the future by our board of directors or our stockholders to eliminate the rights it provides. It is the position of the Securities and Exchange Commission that indemnification of directors and officers for liabilities under the Securities Act of 1933, as amended, is against public policy and unenforceable pursuant to Section 14 of the Securities Act of 1933, as amended.

Item 16.

Exhibits.

See the Exhibit Index which is incorporated herein by reference.

Item 17.

Undertakings.

The undersigned registrant hereby undertakes:

(1) To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:

(i) to include any prospectus required by Section 10(a)(3) of the Securities Act of 1933;

(ii) to reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Securities and Exchange Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than a 20 percent change in the maximum aggregate offering price set forth in the “Calculation of Registration Fee” table in the effective registration statement; and

(iii) to include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement;

provided, however, that paragraphs (i), (ii) and (iii) above do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the Securities and Exchange Commission by the registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the registration statement, or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement.

(2) That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof; and

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(3) To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.

(4) That, for the purpose of determining liability under the Securities Act of 1933 to any purchaser,

(i) (A) Each prospectus filed by the registrant pursuant to Rule 424(b)(3) shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and (B) each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5), or (b)(7) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii), or (x) for the purpose of providing the information required by section 10(a) of the Securities Act of 1933 shall be deemed to be part of and included in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the registration statement to which that prospectus relates, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. Provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such effective date; or

(ii) each prospectus filed pursuant to Rule 424(b) as part of a registration statement relating to an offering, other than registration statements relying on Rule 430B or other than prospectuses filed in reliance on Rule 430A, shall be deemed to be part of and included in the registration statement as of the date it is first used after effectiveness. Provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such first use, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such date of first use.

(5) That, for purposes of determining any liability under the Securities Act of 1933, each filing of the registrant’s annual report pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan’s annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of the securities at that time shall be deemed to be the initial bona fide offering thereof.

(6) That, for the purpose of determining liability of the registrant under the Securities Act of 1933 to any purchaser in the initial distribution of the securities: The undersigned registrant undertakes that in a primary offering of securities of the undersigned registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:

(i) Any preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424;

(ii) Any free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to by the undersigned registrant;

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(iii) The portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant or its securities provided by or on behalf of the undersigned registrant; and

(iv) Any other communication that is an offer in the offering made by the undersigned registrant to the purchaser.

(7) Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Securities Act of 1933 and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act of 1933 and will be governed by the final adjudication of such issue.

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SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this registration statement (the “Registration Statement”) to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Boston, the Commonwealth of Massachusetts, on this 25^th day of July, 2007.


BOSTON PROPERTIES, INC.

By:		/s/ DOUGLAS T. LINDE
		Douglas T. Linde President and Chief Financial Officer

POWER OF ATTORNEY

KNOW ALL BY THESE PRESENTS that each individual whose signature appears below constitutes and appoints each of Mortimer B. Zuckerman, Edward H. Linde and Douglas T. Linde as such person’s true and lawful attorney-in-fact and agent with full power of substitution and resubstitution, for such person in such person’s name, place and stead, in any and all capacities, to sign any and all amendments (including post-effective amendments) to this Registration Statement (or any Registration Statement for the same offering that is to be effective upon filing pursuant to Rule 462(b) under the Securities Act of 1933, as amended), and to file the same, with all exhibits thereto, and all documents in connection therewith, with the Securities and Exchange Commission, granting unto each said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as such person might or could do in person, hereby ratifying and confirming all that any said attorney-in-fact and agent, or any substitute or substitutes of any of them, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed by the following persons in the capacities and on the date indicated. Each person listed below has signed this Registration Statement as an officer or director of Boston Properties, Inc.


Signature	Title	Date

/s/ MORTIMER B. ZUCKERMAN Mortimer B. Zuckerman	Chairman of the Board of Directors	July 25, 2007

/s/ EDWARD H. LINDE Edward H. Linde	Chief Executive Officer, Director (Principal Executive Officer)	July 25, 2007

/s/ DOUGLAS T. LINDE Douglas T. Linde	President, Chief Financial Officer and Treasurer (Principal Financial Officer)	July 25, 2007

/s/ ARTHUR S. FLASHMAN Arthur S. Flashman	Vice President, Controller (Principal Accounting Officer)	July 25, 2007

/s/ LAWRENCE S. BACOW Lawrence S. Bacow	Director	July 25, 2007

/s/ ZOË BAIRD Zoë Baird	Director	July 25, 2007

/s/ CAROL B. EINIGER Carol B. Einiger	Director	July 25, 2007

/s/ ALAN J. PATRICOF Alan J. Patricof	Director	July 25, 2007

/s/ RICHARD E. SALOMON Richard E. Salomon	Director	July 25, 2007

/s/ MARTIN TURCHIN Martin Turchin	Director	July 25, 2007

/s/ DAVID A. TWARDOCK David A. Twardock	Director	July 25, 2007

SIGNATURES


BOSTON PROPERTIES LIMITED PARTNERSHIP

By:		Boston Properties, Inc., its general partner

By:		/s/ DOUGLAS T. LINDE
		Douglas T. Linde President and Chief Financial Officer

POWER OF ATTORNEY


Signature	Title	Date

/s/ MORTIMER B. ZUCKERMAN Mortimer B. Zuckerman	Chairman of the Board of Directors	July 25, 2007

/s/ EDWARD H. LINDE Edward H. Linde	Chief Executive Officer, Director (Principal Executive Officer)	July 25, 2007

/s/ DOUGLAS T. LINDE Douglas T. Linde	President, Chief Financial Officer and Treasurer (Principal Financial Officer)	July 25, 2007

/s/ ARTHUR S. FLASHMAN Arthur S. Flashman	Vice President, Controller (Principal Accounting Officer)	July 25, 2007

/s/ LAWRENCE S. BACOW Lawrence S. Bacow	Director	July 25, 2007

/s/ ZOË BAIRD Zoë Baird	Director	July 25, 2007

/s/ CAROL B. EINIGER Carol B. Einiger	Director	July 25, 2007

/s/ ALAN J. PATRICOF Alan J. Patricof	Director	July 25, 2007

/s/ RICHARD E. SALOMON Richard E. Salomon	Director	July 25, 2007

/s/ MARTIN TURCHIN Martin Turchin	Director	July 25, 2007

/s/ DAVID A. TWARDOCK David A. Twardock	Director	July 25, 2007

EXHIBIT INDEX


Exhibit		Description
1.1*		Form of Underwriting Agreement (for Common Stock).

1.2*		Form of Underwriting Agreement (for Preferred Stock).

1.3*		Form of Underwriting Agreement (for Debt Securities).

4.1		Amended and Restated Certificate of Incorporation of Boston Properties, Inc. (incorporated herein by reference to Exhibit 3.1 to Form 10-Q filed by Boston Properties, Inc. on August 14, 1997 (File No. 001-13087)).

4.2		Amended and Restated By-Laws of Boston Properties, Inc. (incorporated herein by reference to Exhibit 3.2 to Form 10-Q filed by Boston Properties, Inc. on August 14, 1997 (File No. 001-13087)).

4.3		Amendment No. 1 to Amended and Restated By-Laws of Boston Properties, Inc. (incorporated herein by reference to Exhibit 3.3 to Form 10-K405 filed by Boston Properties, Inc. on March 24, 2000 (File No. 001-13087)).

4.4		Amendment No. 2 to Amended and Restated By-Laws of Boston Properties, Inc. (incorporated herein by reference to Exhibit 3.4 to Form 10-K filed by Boston Properties, Inc. on February 26, 2004 (File No. 001-13087)).

4.5		Amended and Restated Certificate of Designations of Series E Junior Participating Cumulative Preferred Stock of Boston Properties, Inc. (incorporated herein by reference to Exhibit 3.1 to Form 8-K filed by Boston Properties, Inc. on June 18, 2007 (File No. 001-13087)).

4.6		Form of Common Stock Certificate (incorporated herein by reference to Exhibit 4.3 to Boston Properties, Inc.’s Registration Statement on Form S-11 (File No. 333-25279)).

4.7		Shareholder Rights Agreement, dated as of June 18, 2007, between Boston Properties, Inc. and Computer Share Trust Company, as Rights Agent (incorporated herein by reference to Exhibit 4.1 to Form 8-K filed by Boston Properties, Inc. on June 18, 2007 (File No. 001-13087)).

4.8**		Form of Indenture for Senior Debt Securities of Boston Properties, Inc.

4.9		Form of Senior Debt Security of Boston Properties, Inc. (included in Exhibit 4.8 hereto).

4.10**		Form of Indenture for Subordinated Debt Securities of Boston Properties, Inc.

4.11		Form of Subordinated Debt Security of Boston Properties, Inc. (included in Exhibit 4.10 hereto).

4.12		Indenture dated as of December 13, 2002 by and between Boston Properties Limited Partnership and The Bank of New York Trust Company, N.A., as Trustee (incorporated herein by reference to Exhibit 4.1 to Form 8-K/A filed by Boston Properties, Inc. on December 13, 2002 (File No. 001-13087)).

4.13		Form of Senior Debt Security of Boston Properties Limited Partnership (included in Exhibit 4.12 hereto).

4.14**		Form of Indenture for Subordinated Debt Securities of Boston Properties Limited Partnership.

4.15		Form of Subordinated Debt Security of Boston Properties Limited Partnership (included in Exhibit 4.14 hereto).

4.16*		Form of Preferred Stock Certificate.

4.17*		Form of Deposit Agreement relating to the depositary shares (including form of depositary receipt).

5.1**		Opinion of Goodwin Procter LLP as to the legality of the securities being registered.


Exhibit		Description
8.1**		Opinion of Goodwin Procter LLP as to certain tax matters.

12.1		Statements regarding Boston Properties, Inc. calculation of ratios of earnings to fixed charges and ratios of earnings to combined fixed charges and preferred distributions for each year in the five-year period ended December 31, 2006 and the three months ended March 31, 2007 (incorporated herein by reference to Exhibit 12.1 to Form 8-K filed by Boston Properties, Inc. on July 25, 2007 (File No. 001-13087)).

12.2		Statements regarding Boston Properties Limited Partnership calculation of ratios of earnings to fixed charges and ratios of earnings to combined fixed charges and preferred distributions for each year in the five-year period ended December 31, 2006 and the three months ended March 31, 2007 (incorporated herein by reference to Exhibit 12.1 to Form 8-K filed by Boston Properties Limited Partnership on July 25, 2007 (File No. 001-50209)).

23.1**		Consent of PricewaterhouseCoopers LLP.

23.2		Consent of Goodwin Procter LLP (included in Exhibits 5.1 and 8.1 hereto).

24.1**		Powers of Attorney (included in Part II of Registration Statement as filed).

25.1**		Statement of Eligibility of Trustee on Form T-1 for Boston Properties, Inc.

25.2**		Statement of Eligibility of Trustee on Form T-1 for Boston Properties Limited Partnership

*	To be filed by amendment or as an exhibit to a document to be incorporated or deemed to be incorporated by reference to this registration statement, including a Current Report on Form 8-K.

**	Filed herewith.

Form of Indenture for Senior Debt Securities of BP Inc.

Exhibit 4.8

BOSTON PROPERTIES, INC.

Company

BOSTON PROPERTIES LIMITED PARTNERSHIP

Guarantor

THE BANK OF NEW YORK TRUST COMPANY, N.A.

Trustee

Form of Indenture

Dated as of [ ]

Senior Debt Securities

TABLE OF CONTENTS


		Page
RECITALS OF THE COMPANY AND THE GUARANTOR		1

ARTICLE ONE—DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION		1
SECTION 1.01.	Definitions	1
SECTION 1.02.	Compliance Certificates and Opinions	11
SECTION 1.03.	Form of Documents Delivered to Trustee	12
SECTION 1.04.	Acts of Holders	12
SECTION 1.05.	Notices, etc., to Trustee, Company and Guarantor	14
SECTION 1.06.	Notice to Holders: Waiver	14
SECTION 1.07.	Counterparts; Effect of Headings and Table of Contents	15
SECTION 1.08.	Successors and Assigns	15
SECTION 1.09.	Severability Clause	16
SECTION 1.10.	Benefits of Indenture	16
SECTION 1.11.	Governing Law	16
SECTION 1.12.	Non-Business Day	16
SECTION 1.13.	Limited Liability; Immunity of Partners, Stockholders, Directors, Officers and Agents of the Company and the Guarantor	16
SECTION 1.14.	Conflict with Trust Indenture Act	17

ARTICLE TWO—SECURITIES FORMS		17
SECTION 2.01.	Forms of Securities	17
SECTION 2.02.	Form of Trustee’s Certificate of Authentication	17
SECTION 2.03.	Securities Issuable in Global Form	18
SECTION 2.04.	Form of Guarantee	19

ARTICLE THREE—THE SECURITIES		19
SECTION 3.01.	Amount Unlimited; Issuable in Series	19
SECTION 3.02.	Denominations	23
SECTION 3.03.	Execution, Authentication, Delivery and Dating	23
SECTION 3.04.	Temporary Securities	25
SECTION 3.05.	Registration, Registration of Transfer and Exchange	28
SECTION 3.06.	Mutilated, Destroyed, Lost and Stolen Securities	31
SECTION 3.07.	Payment of Interest; Interest Rights Preserved	32
SECTION 3.08.	Persons Deemed Owners	34
SECTION 3.09.	Cancellation	35
SECTION 3.10.	Computation of Interest	36
SECTION 3.11.	CUSIP Numbers	36

ARTICLE FOUR—SATISFACTION AND DISCHARGE		36
SECTION 4.01.	Satisfaction and Discharge of Indenture	36
SECTION 4.02.	Application of Trust Funds	37

(i)


ARTICLE FIVE—REMEDIES		38
SECTION 5.01.	Events of Default	38
SECTION 5.02.	Acceleration of Maturity; Rescission and Annulment	40
SECTION 5.03.	Collection of Indebtedness and Suits for Enforcement by Trustee	41
SECTION 5.04.	Trustee May File Proofs of Claim	42
SECTION 5.05.	Trustee May Enforce Claims Without Possession of Securities or Coupons	43
SECTION 5.06.	Application of Money Collected	43
SECTION 5.07.	Limitation on Suits	43
SECTION 5.08.	Unconditional Right of Holders to Receive Principal, Premium or Make-Whole Amount, if any, and Interest, if any	44
SECTION 5.09.	Restoration of Rights and Remedies	44
SECTION 5.10.	Rights and Remedies Cumulative	44
SECTION 5.11.	Delay or Omission Not Waiver	45
SECTION 5.12.	Control by Holders of Securities	45
SECTION 5.13.	Waiver of Past Defaults	45
SECTION 5.14.	Waiver of Usury, Stay or Extension Laws	46
SECTION 5.15.	Undertaking for Costs	46

ARTICLE SIX—THE TRUSTEE		46
SECTION 6.01.	Notice of Defaults	46
SECTION 6.02.	Certain Rights of Trustee	47
SECTION 6.03.	Not Responsible for Recitals or Issuance of Securities	48
SECTION 6.04.	May Hold Securities	48
SECTION 6.05.	Money Held in Trust	49
SECTION 6.06.	Compensation and Reimbursement	49
SECTION 6.07.	Corporate Trustee Required; Eligibility; Conflicting Interests	49
SECTION 6.08.	Resignation and Removal; Appointment of Successor	50
SECTION 6.09.	Acceptance of Appointment by Successor	51
SECTION 6.10.	Merger, Conversion, Consolidation or Succession to Business	52
SECTION 6.11.	Appointment of Authenticating Agent	53
SECTION 6.12.	Certain Duties and Responsibilities of the Trustee	54

ARTICLE SEVEN—HOLDERS’ LISTS AND REPORTS BY TRUSTEE, COMPANY AND GUARANTOR		55
SECTION 7.01.	Disclosure of Names and Addresses of Holders	55
SECTION 7.02.	Reports by Trustee	56
SECTION 7.03.	Reports by Company and Guarantor	56
SECTION 7.04.	Company to Furnish Trustee Names and Addresses of Holders	57

ARTICLE EIGHT—CONSOLIDATION, MERGER, SALE, LEASE OR CONVEYANCE		57
SECTION 8.01.	Consolidations and Mergers of Company and Guarantor and Sales, Leases and Conveyances Permitted Subject to Certain Conditions	57
SECTION 8.02.	Rights and Duties of Successor Corporation and Partnership	58
SECTION 8.03.	Officers’ Certificate and Opinion of Counsel	58

(ii)


ARTICLE NINE—SUPPLEMENTAL INDENTURES		59
SECTION 9.01.	Supplemental Indentures without Consent of Holders	59
SECTION 9.02.	Supplemental Indentures with Consent of Holders	60
SECTION 9.03.	Execution of Supplemental Indentures	61
SECTION 9.04.	Effect of Supplemental Indentures	62
SECTION 9.05.	Conformity with Trust Indenture Act	62
SECTION 9.06.	Reference in Securities to Supplemental Indentures	62

ARTICLE TEN—COVENANTS		62
SECTION 10.01.	Payment of Principal, Premium or Make-Whole Amount, if any, and Interest, if any	62
SECTION 10.02.	Maintenance of Office or Agency	62
SECTION 10.03.	Money for Securities Payments to Be Held in Trust	64
SECTION 10.04.	Existence	65
SECTION 10.05.	Maintenance of Properties	66
SECTION 10.06.	Insurance	66
SECTION 10.07.	Payment of Taxes and Other Claims	66
SECTION 10.08.	Statement as to Compliance	66
SECTION 10.09.	Waiver of Certain Covenants	67

ARTICLE ELEVEN—REDEMPTION OF SECURITIES		67
SECTION 11.01.	Applicability of Article	67
SECTION 11.02.	Election to Redeem; Notice to Trustee	67
SECTION 11.03.	Selection by Trustee of Securities to Be Redeemed	67
SECTION 11.04.	Notice of Redemption	68
SECTION 11.05.	Deposit of Redemption Price	69
SECTION 11.06.	Securities Payable on Redemption Date	69
SECTION 11.07.	Securities Redeemed in Part	70

ARTICLE TWELVE—SINKING FUNDS		70
SECTION 12.01.	Applicability of Article	70
SECTION 12.02.	Satisfaction of Sinking Fund Payments with Securities	71
SECTION 12.03.	Redemption of Securities for Sinking Fund	71

ARTICLE THIRTEEN—REPAYMENT AT THE OPTION OF HOLDERS		71
SECTION 13.01.	Applicability of Article	71
SECTION 13.02.	Repayment of Securities	71
SECTION 13.03.	Exercise of Option	72
SECTION 13.04.	When Securities Presented for Repayment Become Due and Payable	72
SECTION 13.05.	Securities Repaid in Part	73

ARTICLE FOURTEEN—DEFEASANCE AND COVENANT DEFEASANCE		74
SECTION 14.01.	Applicability of Article: Company’s Option to Effect Defeasance or Covenant Defeasance	74
SECTION 14.02.	Defeasance and Discharge	74
SECTION 14.03.	Covenant Defeasance	74

(iii)


SECTION 14.04.	Conditions to Defeasance or Covenant Defeasance	75
SECTION 14.05.	Deposited Money and Government Obligations to Be Held in Trust; Other Miscellaneous Provisions	77

ARTICLE FIFTEEN—MEETINGS OF HOLDERS OF SECURITIES		78
SECTION 15.01.	Purposes for Which Meetings May Be Called	78
SECTION 15.02.	Call, Notice and Place of Meetings.	78
SECTION 15.03.	Persons Entitled to Vote at Meetings	78
SECTION 15.04.	Quorum; Action	78
SECTION 15.05.	Determination of Voting Rights; Conduct and Adjournment of Meetings.	80
SECTION 15.06.	Counting Votes and Recording Action of Meetings	80

ARTICLE SIXTEEN—GUARANTEE		81
SECTION 16.01.	The Guarantee	81

SIGNATURES		83

EXHIBIT A FORM OF REDEEMABLE OR NON-REDEEMABLE SENIOR SECURITY		A-1

EXHIBIT B FORM OF GUARANTEE		B-1

EXHIBIT C FORMS OF CERTIFICATION		C-2

(iv)

BOSTON PROPERTIES, INC.

Reconciliation and tie between the Trust Indenture Act of 1939, as amended (the “Trust Indenture Act” or “TIA”) and the Indenture, dated as of [ ].


	Trust Indenture Act Section	Indenture Section
§ 310(a)(1)		6.07
(a)(2)		Not applicable
(a)(3)		Not applicable
(a)(4)		Not applicable
(a)(5)		Not applicable
(b)		6.04, 6.08
§311		1.01(2), 6.04
§312		7.01
(a)		Not applicable
(b)		7.01
(c)		Not applicable
§313		1.01(“Outstanding”), 7.02
(c)		6.01, 7.03
§314		Not applicable
(a)		Not applicable
(b)		Not applicable
(c)(1)		Not applicable
(c)(2)		Not applicable
(c)(3)		Not applicable
(d)		Not applicable
(e)		Not applicable
§ 315(a)		3.03, 6.02
(b)		3.03, 6.02
(c)		3.03, 6.02
(d)		3.03, 6.02
(e)		6.08
§ 316(a)		Not applicable
(a)(1)(A)		Not applicable
(a)(1)(B)		Not applicable
(a)(2)		Not applicable
(b)		Not applicable
(c)		1.04
§317(a)(1)		Not applicable
(a)(2)		Not applicable
(b)		Not applicable
§318(a)		Not applicable

(v)

NOTE: This reconciliation and tie shall not, for any purpose, be deemed to be a part of the Indenture.

Attention should also be directed to TIA Section 318(c), which provides that the provisions of TIA Sections 310 to and including 317 are a part of and govern every qualified indenture, whether or not physically contained therein.

(vi)

INDENTURE, dated as of [ ] among BOSTON PROPERTIES, INC., a real estate investment trust organized under the laws of the State of Delaware (hereinafter called the “Company”), having its principal office at The Prudential Center, 800 Boylston Street, Suite 1900, Boston, Massachusetts 02199, BOSTON PROPERTIES LIMITED PARTNERSHIP, a limited partnership organized under the laws of the State of Delaware (hereinafter called the “Guarantor”), having its principal office at The Prudential Center, 800 Boylston Street, Suite 1900, Boston, Massachusetts 02119, and The Bank of New York Trust Company, N.A., a national banking association, as Trustee hereunder (hereinafter called the “Trustee”), having a Corporate Trust Office at 222 Berkeley Street, 2^nd Floor, Boston, Massachusetts 02216.

RECITALS OF THE COMPANY AND THE GUARANTOR

The Company deems it necessary to issue from time to time for its lawful purposes senior debt securities (hereinafter called the “Securities”) evidencing its unsecured and senior indebtedness, and has duly authorized the execution and delivery of this Indenture to provide for the issuance from time to time of the Securities, to be issued in one or more Series as provided in this Indenture.

The Guarantor, through the Company, has duly authorized the execution and delivery of this Indenture to provide for the possible guarantee from time to time of the Company’s Securities (herein called the “Guarantee”).

This Indenture is subject to the provisions of the Trust Indenture Act of 1939, as amended (the “Trust Indenture Act” or “TIA”), that are deemed to be incorporated into this Indenture and shall, to the extent applicable, be governed by such provisions.

All things necessary to make this Indenture a valid and legally binding agreement of the Company and the Guarantor, in accordance with its terms, have been done.

NOW, THEREFORE, THIS INDENTURE WITNESSETH:

For and in consideration of the premises and the purchase of the Securities by the Holders thereof, it is mutually covenanted and agreed, for the equal and proportionate benefit of all Holders of the Securities or of Series thereof, as follows:

ARTICLE ONE—DEFINITIONS AND OTHER PROVISIONS OF GENERAL

APPLICATION

SECTION 1.01. Definitions. For all purposes of this Indenture, except as otherwise expressly provided or unless the context otherwise requires:

(1) the terms defined in this Article have the meanings assigned to them in this Article, and include the plural as well as the singular;

(2) all other terms used herein which are defined in the TIA, either directly or by reference therein, have the meanings assigned to them therein, and the terms “cash transactions” and “self liquidating paper,” as used in TIA Section 311, shall have the meanings assigned to them in the rules of the Commission adopted under the TIA;

(3) all accounting terms not otherwise defined herein have the meanings assigned to them in accordance with GAAP;

(4) any reference to an “Article” or a “Section” refers to an Article or Section, as the case may be, of this Indenture; and

(5) the words “herein,” “hereof “and “hereunder” and other words of similar import refer to this Indenture as a whole and not to any particular Article, Section or other subdivision.

“Act,” when used with respect to any Holder, has the meaning specified in Section 1.04.

“Affiliate” of any specified Person means any other Person directly or indirectly controlling or controlled by or under direct or indirect common control with such specified Person. For the purposes of this definition, “control” when used with respect to any specified Person means the power to direct the management and policies of such Person, directly or indirectly, whether through the ownership of voting securities, by contract or otherwise; and the terms “controlling” and “controlled” have meanings correlative to the foregoing.

“Authenticating Agent” means any Person authorized by the Trustee pursuant to Section 6.11 hereof to act on behalf of the Trustee to authenticate Securities of one or more Series.

“Authorized Newspaper” means a newspaper, printed in the English language or in an official language of the country of publication, customarily published on each Business Day, whether or not published on Saturdays, Sundays or holidays, and of general circulation in each place in connection with which the term is used or in the financial community of each such place. Whenever successive publications are required to be made in Authorized Newspapers, the successive publications may be made in the same or in different Authorized Newspapers in the same city meeting the foregoing requirements and in each case on any Business Day.

“Bankruptcy Law” has the meaning specified in Section 5.01.

“Bearer Security” means any Security established pursuant to Section 2.01 which is payable to the bearer.

“Board of Directors” when used with reference to the Company, means the board of directors of Boston Properties, or any committee of that board duly authorized to act hereunder or any director or directors and/or officer or officers of Boston Properties, to whom the board or committee shall have duly delegated its authority.

“Board Resolution” means a copy of (1) a resolution certified by the Secretary or an Assistant Secretary of Boston Properties to have been duly adopted by the Board of Directors or a duly authorized committee of the Board of Directors and to be in full force and effect on the date of such certification or (2) a certificate signed by the director or directors or officer or officers to whom the Board of Directors of Boston Properties shall have duly delegated its authority, together with a resolution certified by the Secretary or an Assistant Secretary of Boston Properties to have been duly adopted by the Board of Directors and to be in full force and effect on the date of such certification authorizing such delegation, and, in each case, delivered to the Trustee.

“Boston Properties” means Boston Properties, Inc., a Delaware corporation and the general partner of the Guarantor, until a successor Person shall have become the general partner of the Guarantor, and thereafter “Boston Properties” shall mean such successor general partner.

“Business Day,” when used with respect to any Place of Payment or any other particular location referred to in this Indenture or in the Securities, means, unless otherwise specified with respect to any Securities issued pursuant to Section 3.01, any day, other than a Saturday or Sunday, that is neither a legal holiday nor a day on which banking institutions in that Place of Payment or particular location are authorized or required by law, regulation or executive order to close.

“Capital Stock” means, with respect to any Person, any capital stock (including preferred stock), shares, interests, participations or other ownership interests (however designated) of such Person and any rights (other than debt securities convertible into or exchangeable for corporate stock), warrants or options to purchase any thereof.

“Clearstream” means Clearstream Banking Luxembourg, société anonyme, or its successor.

“Code” means the Internal Revenue Code of 1986, as amended, and the regulations thereunder.

“Commission” means the Securities and Exchange Commission, as from time to time constituted, created under the Exchange Act, or, if at any time after execution of this instrument such Commission is not existing and performing the duties now assigned to it under the Trust Indenture Act, then the body performing such duties on such date.

“Common Depository” has the meaning specified on Section 3.04.

“Common Stock” means, with respect to any Person, all shares of capital stock issued by such Person other than Preferred Stock.

“Company” means the Person named as the “Company” in the first paragraph of this Indenture until a successor corporation shall have become such pursuant to the applicable provisions of this Indenture, and thereafter “Company” shall mean such successor corporation.

“Company Recourse Indebtedness” has the meaning specified in Section 5.01(5).

“Company Request” and “Company Order” mean, respectively, a written request or order signed in the name of the Company by the Chairman of the Board, the President or a Vice President, of Boston Properties, and by the Treasurer, Assistant Treasurer, Secretary or Assistant Secretary of Boston Properties and delivered to the Trustee.

“Conversion Event” means the cessation of use of (i) a Foreign Currency both by the government of the country which issued such currency and for the settlement of transactions by a central bank or other public institutions of or within the international banking community or (ii) any currency unit (or composite currency) for the purposes for which it was established.

“Corporate Trust Office” means the office of the Trustee at which, at any particular time, its corporate trust business shall be principally administered, which office at the date hereof is located at 222 Berkeley Street, 2^nd Floor, Boston, Massachusetts 02216.

“corporation” includes corporations, limited liability companies, partnerships, associations, companies and business trusts.

“coupon” means any interest coupon appertaining to a Bearer Security.

“covenant defeasance” has the meaning specified in Section 14.03.

“Custodian” has the meaning specified in Section 5.01.

“Debt Instrument” has the meaning specified in Section 5.01(5).

“Defaulted Interest” has the meaning specified in Section 3.07.

“defeasance” has the meaning specified in Section 14.02.

“Dollar” and the sign “$” means a dollar or other equivalent unit in such coin or currency of the United States of America as at the time of payment is legal tender for the payment of public and private debts.

“DTC” means the Depository Trust Company and any successor to DTC in its capacity as depository for any Securities.

“Euroclear” Euroclear Bank S.A./N.V., or its successor, as operator of the Euroclear System.

“Event of Default” has the meaning specified in Section 5.01.

“Exchange Act” means the Securities Exchange Act of 1934, as amended, as in force at the date as of which this Indenture was executed; provided, however, that in the event the Exchange Act is amended after such date, “Exchange Act” means to the extent required by any such amendment, the Exchange Act as so amended.

“Exchange Date” has the meaning specified in Section 3.04.

“Foreign Currency” means any currency, currency unit or composite currency issued by the government of one or more countries other than the United States of America or by any recognized confederation or association of such governments.

“GAAP” means generally accepted accounting principles in the United States, consistently applied, as in effect from time to time.

“Global Security” means a Security evidencing all or a part of a Series of Securities issued to and registered in the name of the depository for such Series, or its nominee, in accordance with Section 3.05, and bearing the legend prescribed in Section 2.03.

“Government Obligations” means (i) securities which are (A) direct obligations of the United States of America or the government which issued the Foreign Currency in which the Securities of a particular Series are payable, for the payment of which its full faith and credit is pledged or (B) obligations of a Person controlled or supervised by and acting as an agency or instrumentality of the United States of America or such government which issued the Foreign Currency in which the Securities of such Series are payable, the payment of which is unconditionally guaranteed as a full faith and credit obligation by the United States of America or such other government, which, in either case, are not callable or redeemable at the option of the issuer thereof, and (ii) a depository receipt issued by a bank or trust company as custodian with respect to any such Government Obligation or a specific payment of interest on or principal of any such Government Obligation held by such custodian for the account of the holder of a depository receipt, provided that (except as required by law) such custodian is not authorized to make any deduction from the amount payable to the holder of such depository receipt from any amount received by the custodian in respect of the Government Obligation or the specific payment of interest on or principal of the Government Obligation evidenced by such depository receipt.

“Guarantee” means the unconditional guarantee of the payment of principal of, or any premium or interest on, the Guaranteed Securities by the Guarantor, as more fully set forth in Article Sixteen.

“Guaranteed Securities” means a Series of Securities made subject to a Guarantee (as set forth in Article Sixteen) pursuant to Section 3.01.

“Guarantor” means the Person named as the “Guarantor” in the first paragraph of this instrument until a successor Person shall have become such pursuant to the applicable provisions of this Indenture, and thereafter “Guarantor” shall mean such successor Person.

“Guarantor’s Board Resolution” means a copy of a resolution certified by the Secretary or an Assistant Secretary of Boston Properties, Inc. to have been duly adopted by the Board of Directors as general partner of the Guarantor, and to be in full force and effect on the date of such certification, and delivered to the Trustee.

“Guarantor’s Officers’ Certificate” means a certificate of any two Officers or by any Officer and an Assistant Treasurer or an Assistant Secretary of Boston Properties, Inc. or any Person designated by an Officer in writing as authorized to execute and deliver such certificate, and delivered to the Trustee. One of the Officers signing an Officers’ Certificate given pursuant to Section 10.08 shall be the principal executive, financial or accounting officer of Boston Properties.

“Guarantor Request” or “Guarantor Order” means a written request or order signed in the name of the Guarantor by the Chairman of the Board, the President or a Vice President, and by the Treasurer, an Assistant Treasurer, the Controller, the Secretary or an Assistant Secretary of Boston Properties, as general partner of the Guarantor, and delivered to the Trustee.

“Holder” means, in the case of a Registered Security, the Person in whose name a Security is registered in the Security Register and, in the case of a Bearer Security, the bearer thereof and, when used with respect to any coupon, shall mean the bearer thereof.

“Indenture” means this instrument as originally executed or as it may be supplemented or amended from time to time by one or more indentures supplemental hereto entered into pursuant to the applicable provisions hereof, and shall include the terms of particular Series of Securities established as contemplated by Section 3.01; provided, however, that, if at any time more than one Person is acting as Trustee under this instrument, “Indenture” shall mean, with respect to any one or more Series of Securities for which such Person is Trustee, this instrument as originally executed or as it may be supplemented or amended from time to time by one or more indentures supplemental hereto entered into pursuant to the applicable provisions hereof and shall include the terms of the or those particular Series of Securities for which such Person is Trustee established as contemplated by Section 3.01, exclusive, however, of any provisions or terms which relate solely to other Series of Securities for which such Person is Trustee, regardless of when such terms or provisions were adopted, and exclusive of any provisions or terms adopted by means of one or more indentures supplemental hereto executed and delivered after such Person had become such Trustee but to which such Person, as such Trustee, was not a party.

“Indexed Security” means a Security the terms of which provide that the principal amount thereof payable at Stated Maturity may be more or less than the principal face amount thereof at original issuance.

“Interest,” when used with respect to an Original Issue Discount Security which by its terms bears interest only after Maturity, shall mean interest payable after Maturity.

“Interest Payment Date,” when used with respect to any Security, means the Stated Maturity of an installment of interest on such Security.

“Make-Whole Amount,” when used with respect to any Security, means the amount, if any, in addition to principal (and accrued interest thereon, if any) which is required by a Security, under the terms and conditions specified therein or as otherwise specified as contemplated by Section 3.01, to be paid by the Company to the Holder thereof in connection with any optional redemption or accelerated payment of such Security.

“mandatory sinking fund payment” has the meaning specified in Section 12.01.

“Maturity,” when used with respect to any Security, means the date on which the principal (or, if the context so requires, in the case of an Original Issue Discount Security, or lesser amount or, in the case of an Indexed Security, an amount determined in accordance with the specified terms of that Security) of such Security or an installment of principal becomes due and payable as therein or herein provided, whether at the Stated Maturity or by declaration of acceleration, notice of redemption, notice of option to elect repayment or otherwise.

“NASD” has the meaning specified in Section 13.03.

“Notice of Default” has the meaning specified in Section 5.01.

“Officers’ Certificate” means a certificate signed by the Chairman of the Board of Directors, the President or any Vice President (whether or not designated by a number or word or words added before or after the title “Vice President”) and by the Treasurer, an Assistant Treasurer, the Secretary or an Assistant Secretary of Boston Properties, and delivered to the Trustee.

“Opinion of Counsel” means a written opinion of counsel, who may be counsel for the Company or the Guarantor, as the case may be, or who may be an employee of or other counsel for the Company or the Guarantor, as the case may be.

“Option to Elect Repayment” has the meaning specified in Section 13.03.

“optional sinking fund payment” has the meaning specified in Section 12.01.

“Original Issue Discount Security” means any Security which provides for an amount (excluding any amounts attributable to accrued but unpaid interest thereon) less than the principal amount thereof to be due and payable upon a declaration of acceleration of the Maturity thereof pursuant to Section 5.02.

“Outstanding,” when used with respect to Securities, means, as of the date of determination, all Securities theretofore authenticated and delivered under this Indenture, except:

(i) Securities theretofore canceled by the Trustee or delivered to the Trustee for cancellation;

(ii) Securities, or portions thereof, for whose payment or redemption (including repayment at the option of the Holder) money in the necessary amount has been theretofore deposited with the Trustee or any Paying Agent (other than the Company or the Guarantor) in trust or set aside and segregated in trust by the Company or the Guarantor (if the Company or Guarantor shall act as its own Paying Agent) for the Holders of such Securities and any coupons appertaining thereto; provided, however, that, if such Securities are to be redeemed, notice of such redemption has been duly given pursuant to this Indenture, or provision therefor satisfactory to the Trustee has been made;

(iii) Securities, except to the extent provided in Sections 14.02 and 14.03, with respect to which the Company has effected defeasance and/or covenant defeasance as provided in Article Fourteen; and

(iv) Securities which have been paid pursuant to Section 3.06 or in exchange for or in lieu of which other Securities have been authenticated and delivered pursuant to this Indenture, other than any such Securities in respect of which there shall have been presented to the Trustee proof satisfactory to it that such Securities are held by a bona fide purchaser in whose hands such Securities are valid obligations of the Company and Guarantor.

provided, however, that in determining whether the Holders of the requisite principal amount of the Outstanding Securities have given any request, demand, authorization, direction, notice, consent or waiver hereunder or are present at a meeting of Holders for quorum purposes, and for the purpose of making the calculations required by TIA Section 313, (i) the principal amount of an Original Issue Discount Security that may be counted in making such determination or calculation and that shall be deemed to be Outstanding for such purpose shall be equal to the amount of principal thereof that would be (or shall have been declared to be) due and payable, at the time of such determination, upon a declaration of acceleration of the maturity thereof pursuant to Section 5.02, (ii) the principal amount of any Security denominated in a Foreign Currency that may be counted in making such determination or calculation and that shall be deemed Outstanding for such purpose shall be equal to the Dollar equivalent, determined pursuant to Section 3.01 as of the date such Security is originally issued by the Company, of the principal amount (or, in the case of an Original Issue Discount Security, the Dollar equivalent as of such date of original issuance of the amount determined as provided in clause (i) above) of such Security, (iii) the principal amount of any Indexed Security that may be counted in making such determination or calculation and that shall be deemed outstanding for such purpose shall be equal to the principal face amount of such Indexed Security at original issuance, unless otherwise provided with respect to such Security pursuant to Section 3.01, and (iv) Securities owned by the Company or Guarantor or any other obligor upon the Securities or any Affiliate of the Company or Guarantor or of such other obligor shall be disregarded and deemed not to be Outstanding, except that, in determining whether the Trustee shall be protected in making such calculation or in relying upon any such request, demand, authorization, direction, notice, consent or waiver, only Securities which a Responsible Officer of the Trustee actually knows to be so owned shall be so disregarded. Securities owned as provided in clause (iv) above which have been pledged in good faith may be regarded as Outstanding if the pledgee establishes to the satisfaction of the Trustee the pledgee’s right so to act with respect to such Securities and that the pledgee is not the Company or Guarantor or any other obligor upon the Securities or any Affiliate of the Company or Guarantor or of such other obligor. In case of a dispute as to such right, the advice of counsel shall be full protection in respect of any decision made by the Trustee in accordance with such advice.

“Paying Agent” means any Person authorized by the Company to pay the principal of (and premium or Make-Whole Amount, if any) or interest on any Securities or coupons on behalf of the Company.

“Person” means any individual, corporation, limited liability company, partnership, joint venture, association, joint-stock company, trust, unincorporated organization or government or any agency or political subdivision thereof, or any other entity or organization.

“Place of Payment,” when used with respect to the Securities of or within any Series, means the place or places where the principal of (and premium or Make-Whole Amount, if any) and interest on such Securities are payable as specified as contemplated by Sections 3.01 and 10.02.

exchange for or in lieu of a mutilated, destroyed, lost or stolen Security or a Security to which a mutilated, destroyed, lost or stolen coupon appertains shall be deemed to evidence the same debt as the mutilated, destroyed, lost or stolen Security or the Security to which the mutilated, destroyed, lost or stolen coupon appertains.

“Preferred Stock” means, with respect to any Person, all capital stock issued by such Person that is entitled to a preference or priority over any other capital stock issued by such Person with respect to any distribution of such Person’s assets, whether by dividend or upon any voluntary or involuntary liquidation, dissolution or winding up.

“Recourse” means, with reference to any indebtedness for money borrowed, the portion of such indebtedness, if any, that is not Without Recourse to the obligor thereunder, directly or indirectly. For purposes hereof, a Person shall not be deemed to be “indirectly” liable for indebtedness of an obligor solely by reason of the fact that such Person has an ownership interest in such obligor, provided that such Person is not otherwise legally liable, directly or indirectly, for such obligor’s indebtedness (e.g., by reason of a guaranty or contribution obligation, by operation of law or by reason of such Person being a general partner of such obligor).

“Redemption Date,” when used with respect to any Security to be redeemed, in whole or in part, means the date fixed for such redemption by or pursuant to this Indenture.

“Redemption Price,” when used with respect to any Security to be redeemed, means the price specified in the related Officers’ Certificate or supplemental indenture contemplated by and pursuant to Section 3.01, at which it is to be redeemed pursuant to this Indenture.

“Registered Security” shall mean any Security which is registered in the Security Register.

“Regular Record Date” for the interest payable on any Interest Payment Date on the Registered Securities of or within any Series means the date specified for that purpose as contemplated by Section 3.01, whether or not a Business Day.

“Repayment Date” means, when used with respect to any Security to be repaid at the option of the Holder, the date fixed for such repayment by or pursuant to this Indenture.

“Repayment Price” means, when used with respect to any Security to be repaid at the option of the Holder, the price at which it is to be repaid by or pursuant to this Indenture.

“Responsible Officer,” when used with respect to the Trustee, means any Vice President (whether or not designated by a number or a word or words added before or after the title “Vice President”), Assistant Vice President, Trust Officer or Assistant Trust Officer working in its Corporate Trust Department, or any other officer of the Trustee customarily performing functions similar to those performed by any of the above designated officers and working in its Corporate Trust Department, and also means, with respect to a particular corporate trust matter, any other officer to whom such matter is referred because of such officer’s knowledge and familiarity with the particular subject and who shall have direct responsibility for the administration of this Indenture.

“Security” and “Securities” has the meaning stated in the first recital of this Indenture and, more particularly, means any Security or Securities authenticated and delivered under this Indenture; provided, however, that, if at any time there is more than one Person acting as Trustee under this Indenture, “Securities” with respect to the Indenture as to which such Person is Trustee shall have the meaning stated in the first recital of this Indenture and shall more particularly mean Securities authenticated and delivered under this Indenture, exclusive, however, of Securities of any Series as to which such Person is not Trustee.

“Security Register” and “Security Registrar” have the respective meanings specified in Section 3.05.

“Senior Officer” means, with respect to the Company, the Chairman of the Board of Directors, the President, the Chief Executive Officer, the Chief Financial Officer, the Treasurer, or the Controller/Chief Accounting Officer of the Company.

“Series” of Securities means all securities denoted as part of the same Series authorized by or pursuant to a particular Board Resolution.

“Significant Subsidiary” has the meaning specified in Section 5.01.

“Special Record Date” for the payment of any Defaulted Interest on the Registered Securities of or within any Series means a date fixed by the Company pursuant to Section 3.07.

“Stated Maturity,” when used with respect to any Security or any installment of principal thereof or interest thereon, means the date specified in such Security or a coupon representing such installment of interest as the fixed date on which the principal of such Security or such installment of principal or interest is due and payable.

“Subsidiary” means, with respect to any Person, a corporation, partnership, association, joint venture, trust, limited liability company or other business entity, which is required to be consolidated with the Company in accordance with GAAP.

“Trust Indenture Act” or “TIA” means the Trust Indenture Act of 1939, as amended and as in force at the date as of which this Indenture was executed, except as provided in Section 9.05.

“Trustee” means the Person named as the “Trustee” in the first paragraph of this Indenture until a successor Trustee shall have become such pursuant to the applicable provisions of this Indenture, and thereafter “Trustee” shall mean or include each Person who is then a Trustee hereunder; provided, however, that if at any time there is more than one such Person, “Trustee” as used with respect to the Securities of any Series shall mean only the Trustee with respect to Securities of that Series.

“United States” means, unless otherwise specified with respect to any Securities pursuant to Section 3.01, the United States of America (including the states and the District of Columbia), its territories, its possessions and other areas subject to its jurisdiction.

“United States Person” means, unless otherwise specified with respect to any Securities pursuant to Section 3.01, an individual who is a citizen or resident of the United States, a corporation, partnership or other entity created or organized in or under the laws of the United States or an estate or trust the income of which is subject to United States Federal income taxation regardless of its source.

“Without Recourse” means, with reference to any indebtedness for money borrowed, any portion of such indebtedness for which the obligor thereunder is not liable or obligated other than as to such obligor’s interest in an asset specifically identified or designated with respect to such indebtedness, subject to such limited exceptions to the non-recourse nature of such indebtedness, such as, but not limited to, fraud, misappropriation, misapplication and environmental indemnities, as are usual and customary in like transactions involving institutional lenders at the time of the incurrence of such indebtedness.

“Yield to Maturity” means the yield to maturity, computed at the time of issuance of a Security (or, if applicable, at the most recent redetermination of interest on such Security) and as set forth in such Security in accordance with generally accepted United States bond yield computation principles.

SECTION 1.02. Compliance Certificates and Opinions. Upon any application or request by the Company or Guarantor to the Trustee to take any action under any provision of this Indenture, the Company or the Guarantor, as the case may be, shall furnish to the Trustee an Officers’ Certificate or Guarantor’s Officers’ Certificate stating that all conditions precedent, if any, provided for in this Indenture relating to the proposed action have been complied with and an Opinion of Counsel stating that in the opinion of such counsel all such conditions precedent, if any, have been complied with, except that in the case of any such application or request as to which the furnishing of such documents is specifically required by any provision of this Indenture relating to such particular application or request, no additional certificate or opinion need be furnished.

Every certificate or opinion with respect to compliance with a condition or covenant provided for in this Indenture (including certificates delivered pursuant to Section 10.08) shall include:

(1) a statement that each individual signing such certificate or opinion has read such condition or covenant and the definitions herein relating thereto;

(2) a brief statement as to the nature and scope of the examination or investigation upon which the statements or opinions contained in such certificate or opinion are based;

(3) a statement that, in the opinion of each such individual, he has made such examination or investigation as is necessary to enable him to express an informed opinion as to whether or not such condition or covenant has been complied with; and

(4) a statement as to whether, in the opinion of each such individual, such condition or covenant has been complied with.

SECTION 1.03. Form of Documents Delivered to Trustee. In any case where several matters are required to be certified by, or covered by an opinion of, any specified Person, it is not necessary that all such matters be certified by, or covered by the opinion of, only one such Person, or that they be so certified or covered by only one document, but one such Person may certify or give an opinion with respect to some matters and one or more other such Persons as to other matters, and any such Person may certify or give an opinion as to such matters in one or several documents.

Any certificate or opinion of an officer of the Company or the Guarantor, as the case may be, may be based, insofar as it relates to legal matters, upon an Opinion of Counsel, or a certificate or representations by counsel, unless such officer knows, or in the exercise of reasonable care should know, that the opinion, certificate or representations with respect to the matters upon which his certificate or opinion is based are erroneous.

Any such Opinion of Counsel or certificate or representations may be based, insofar as it relates to factual matters, upon a certificate or opinion of, or representations by, an officer or officers of the Company or the Guarantor, as the case may be, stating that the information as to such factual matters is in the possession of the Company or the Guarantor, unless such counsel knows, or in the exercise of reasonable care should know, that the certificate or opinion or representations with respect to such matters are erroneous.

Where any Person is required to make, give or execute two or more applications, requests, consents, certificates, statements, opinions or other instruments under this Indenture, they may, but need not, be consolidated and form one instrument.

SECTION 1.04. Acts of Holders.

(a) Any request, demand, authorization, direction, notice, consent, waiver or other action provided by this Indenture to be given or taken by Holders of the Outstanding Securities of all Series or one or more Series, as the case may be, may be embodied in and evidenced by one or more instruments of substantially similar tenor signed by such Holders in person or by agents duly appointed in writing. If Securities of a Series are issuable as Bearer Securities, any request, demand, authorization, direction, notice, consent, waiver or other action provided by this Indenture to be given or taken by Holders of Securities of such Series may, alternatively, be embodied in and evidenced by the record of Holders of Securities of such Series voting in favor thereof, either in person or by proxies duly appointed in writing, at any meeting of Holders of Securities of such Series duly called and held in accordance with the provisions of Article Fifteen, or a combination of such instruments and any such record. Except as herein otherwise expressly provided, such action shall become effective when such instrument or instruments or record or both are delivered to the Trustee and, where it is hereby expressly required, to the Company and to the Guarantor. Such instrument or instruments and any such record (and the action embodied therein and evidenced thereby) are herein sometimes referred to as the “Act” of the Holders signing such instrument or instruments or so voting at any such meeting. Proof of execution of any such instrument or of a writing appointing any such agent, or of the holding by any Person of a Security, shall be sufficient for any purpose of this Indenture and conclusive in favor of the Trustee and the Company and the Guarantor and any agent of the Trustee or the Company or the Guarantor, if made in the manner provided in this Section. The record of any meeting of Holders of Securities shall be proved in the manner provided in Section 15.06.

(b) The fact and date of the execution by any Person of any such instrument or writing may be proved by the affidavit of a witness of such execution or by a certificate of a notary public or other officer authorized by law to take acknowledgments of deeds, certifying that the individual signing such instrument or writing acknowledged to him the execution thereof. Where such execution is by a signer acting in a capacity other than his individual capacity, such certificate or affidavit shall also constitute sufficient proof of his authority. The fact and date of the execution of any such instrument or writing, or the authority of the Person executing the same, may also be proved in any other reasonable manner which the Trustee deems sufficient.

(c) The ownership of Registered Securities shall be proved by the Security Register. As to any matter relating to beneficial ownership interests in any Global Security, the appropriate depository’s records shall be dispositive for purposes of this Indenture.

(d) The ownership of Bearer Securities may be proved by the production of such Bearer Securities or by a certificate executed, as depository, by any trust company, bank, banker or other depository, wherever situated, if such certificate shall be deemed by the Trustee to be satisfactory, showing that at the date therein mentioned such Person had on deposit with such depository, or exhibited to it, the Bearer Securities therein described; or such facts may be proved by the certificate or affidavit of the Person holding such Bearer Securities, if such certificate or affidavit is deemed by the Trustee to be satisfactory. The Trustee and the Company and the Guarantor may assume that such ownership of any Bearer Security continues until (1) another certificate or affidavit bearing a later date issued in respect of the same Bearer Security is produced, or (2) such Bearer Security is produced to the Trustee by some other Person, or (3) such Bearer Security is surrendered in exchange for a Registered Security, or (4) such Bearer Security is no longer Outstanding. The ownership of Bearer Securities may also be proved in any other manner which the Trustee deems sufficient.

(e) If the Company shall solicit from the Holders of Registered Securities any request, demand, authorization, direction, notice, consent, waiver or other Act, the Company may, at its option, in or pursuant to a Board Resolution, fix in advance a record date for the determination of Holders entitled to give such request, demand, authorization, direction, notice, consent, waiver or other Act, but the Company shall have no obligation to do so. Notwithstanding TIA Section 316(c), such record date shall be the record date specified in or pursuant to such Board Resolution, which shall be a date not earlier than the date 30 days prior to the first solicitation of Holders generally in connection therewith and not later than the date such solicitation is completed. If such a record date is fixed, such request, demand, authorization, direction, notice, consent, waiver or other Act may be given before or after such record date, but only the Holders of record at the close of business on such record date shall be deemed to be Holders for the purposes of determining whether Holders of the requisite proportion of Outstanding Securities have authorized or agreed or consented to such request, demand, authorization, direction, notice, consent, waiver or other Act, and for that purpose the Outstanding Securities shall be computed as of such record date; provided that no such authorization, agreement or consent by the Holders on such record date shall be deemed effective unless it shall become effective pursuant to the provisions of this Indenture not later than eleven months after the record date.

(f) Any request, demand, authorization, direction, notice, consent, waiver or other Act of the Holder of any Security shall bind every future Holder of the same Security and the Holder of every Security issued upon the registration of transfer thereof or in exchange therefor or in lieu thereof in respect of anything done, omitted or suffered to be done by the Trustee, any Security Registrar, any Paying Agent, any Authenticating Agent, the Company or the Guarantor in reliance thereon, whether or not notation of such action is made upon such Security.

SECTION 1.05. Notices, etc., to Trustee, Company and Guarantor. Any request, demand, authorization, direction, notice, consent, waiver or Act of Holders or other documents provided or permitted by this Indenture to be made upon, given or furnished to, or filed with,

(1) the Trustee by any Holder or by the Company or the Guarantor shall be sufficient for every purpose hereunder if made, given, furnished or filed in writing to or with the Trustee at 222 Berkeley Street, 2^nd Floor, Boston, Massachusetts 02216; or

(2) the Company or Guarantor by the Trustee or by any Holder shall be sufficient for every purpose hereunder (unless otherwise herein expressly provided) if in writing and mailed, first class postage prepaid, to the Company or the Guarantor, as the case may be, addressed to it at the address of its principal office specified in the first paragraph of this Indenture or at any other address previously furnished in writing to the Trustee by the Company or Guarantor, as the case may be, Attention: Chief Financial Officer and General Counsel, or

(3) either the Trustee or the Company or the Guarantor, by the other party or by any Holder, shall be sufficient for every purpose hereunder if given by facsimile transmission, receipt confirmed by telephone followed by an original copy delivered by guaranteed overnight courier; if to the Trustee at facsimile number (617) 351-2401; and if to the Company or to the Guarantor at facsimile number (617) 421-1556.

SECTION 1.06. Notice to Holders: Waiver. Where this Indenture provides for notice of any event to Holders of Registered Securities by the Company, the Guarantor or the Trustee, such notice shall be sufficiently given (unless otherwise herein expressly provided) if in writing and mailed, first-class postage prepaid, to each such Holder affected by such event, at his address as it appears in the Security Register, not later than the latest date, if any, and not earlier than the earliest date, if any, prescribed for the giving of such notice. In any case where notice to Holders of Registered Securities is given by mail, neither the failure to mail such notice, nor any defect in any notice so mailed, to any particular Holder shall affect the sufficiency of such notice with respect to other Holders of Registered Securities or the sufficiency of any notice to Holders of Bearer Securities given as provided herein. Any notice mailed to a Holder in the manner herein prescribed shall be conclusively deemed to have been received by such Holder, whether or not such Holder actually receives such notice.

If by reason of the suspension of or irregularities in regular mail service or by reason of any other cause it shall be impracticable to give such notice by mail, then such notification to Holders of Registered Securities as shall be made with the approval of the Trustee shall constitute a sufficient notification to such Holders for every purpose hereunder.

Except as otherwise expressly provided herein or otherwise specified with respect to any Securities pursuant to Section 3.01, where this Indenture provides for notice to Holders of Bearer Securities of any event, such notice shall be sufficiently given if published in an Authorized Newspaper in The City of New York and in such other city or cities as may be specified in such Securities on a Business Day, such publication to be not later than the latest date, if any, and not earlier than the earliest date, if any, prescribed for the giving of such notice. Any such notice shall be deemed to have been given on the date of such publication or, if published more than once, on the date of the first such publication.

If by reason of the suspension of publication of any Authorized Newspaper or Authorized Newspapers or by reason of any other cause it shall be impracticable to publish any notice to Holders of Bearer Securities as provided above, then such notification to Holders of Bearer Securities as shall be given with the approval of the Trustee shall constitute sufficient notice to such Holders for every purpose hereunder. Neither the failure to give notice by publication to any particular Holder of Bearer Securities as provided above, nor any defect in any notice so published, shall affect the sufficiency of such notice with respect to other Holders of Bearer Securities or the sufficiency of any notice to Holders of Registered Securities given as provided herein.

Any request, demand, authorization, direction, notice, consent or waiver required or permitted under this Indenture shall be in the English language, except that any published notice may be in an official language of the country of publication.

Where this Indenture provides for notice in any manner, such notice may be waived in writing by the Person entitled to receive such notice, either before or after the event, and such waiver shall be the equivalent of such notice. Waivers of notice by Holders shall be filed with the Trustee, but such filing shall not be a condition precedent to the validity of any action taken in reliance upon such waiver.

SECTION 1.07. Counterparts; Effect of Headings and Table of Contents. This Indenture may be executed in any number of counterparts, each of which so executed shall be deemed to be an original, but all such counterparts shall together constitute but one and the same Indenture. The Article and Section headings herein and the Table of Contents are for convenience only and shall not affect the construction hereof.

SECTION 1.08. Successors and Assigns. All covenants and agreements in this Indenture by the Company or the Guarantor, as the case may be, shall bind its successors and assigns, whether so expressed or not.

SECTION 1.09. Severability Clause. In case any provision in this Indenture or in any Security or coupon shall be held invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby.

SECTION 1.10. Benefits of Indenture. Nothing in this Indenture or in the Securities or coupons, if any, express or implied, shall give to any Person, other than the parties hereto, any Security Registrar, any Paying Agent, any Authenticating Agent and their successors hereunder and the Holders any benefit or any legal or equitable right, remedy or claim under this Indenture.

SECTION 1.11. Governing Law. This Indenture and the Securities and coupons shall be governed by and construed in accordance with the laws of the State of New York. This Indenture is subject to the provisions of the TIA that are required to be part of this Indenture and shall, to the extent applicable, be governed by such provisions.

SECTION 1.12. Non-Business Day. In any case where any Interest Payment Date, Redemption Date, Repayment Date, sinking fund payment date, Stated Maturity or Maturity of any Security or the last date on which a Holder has the right to exchange a Security shall not be a Business Day at any Place of Payment, then (notwithstanding any other provision of this Indenture or any Security or coupon other than a provision in the Securities of any Series which specifically states that such provision shall apply in lieu hereof), payment of interest, if any, or principal (and premium or Make-Whole Amount, if any) or exchange of such Security need not be made at such Place of Payment on such date, but (except as otherwise provided in the supplemental indenture with respect to such Security) may be made on the next succeeding Business Day at such Place of Payment with the same force and effect as if made on the Interest Payment Date, Redemption Date, Repayment Date or sinking fund payment date, or at the Stated Maturity or Maturity, or on such last day for exchange, provided that no interest shall accrue on the amount so payable for the period from and after such Interest Payment Date, Redemption Date, Repayment Date, sinking fund payment date, Stated Maturity or Maturity, as the case may be.

SECTION 1.13. Limited Liability; Immunity of Partners, Stockholders, Directors, Officers and Agents of the Company and the Guarantor. Notwithstanding any other provision of this Indenture or of the Securities of any Series to the contrary, no recourse under or upon any obligation, covenant or agreement contained in this Indenture or in any Security, or for the payment of any sums due on account of any indebtedness evidenced thereby, including without limitation principal, premium or interest, if any, or for any claim based on this Indenture or any Security or otherwise in respect of this Indenture or any Security, shall be had, whether by levy or execution or otherwise, against any past, present or future partner of the Company or the Guarantor, whether limited or general, or any successor of any such partner or any such partner’s or successor’s assets or against any stockholder, principal or member of such partner or successor, or any employee, officer, director or agent of any of the foregoing, as such, or of any successor, either directly or through the Company, the Guarantor or any successor, under any rule of law, statute, constitutional provision or by the enforcement of any assessment or penalty, or by any legal or equitable proceeding or otherwise, nor shall any such parties be personally liable for any such amounts, obligations or claims, or liable for any deficiency judgment based

thereon or with respect thereto, it being expressly understood that the sole remedies hereunder or under any other document with respect to the Securities against such parties with respect to such amounts, obligations or claims shall be against the Company, or in the case of a Guarantee thereof, the Guarantor, as the case may be, and that all such liability of and recourse against such parties is expressly waived and released by the acceptance of the Securities and, if applicable, the Guarantees, by the Holders and as part of the consideration for the issue of the Securities.

SECTION 1.14. Conflict with Trust Indenture Act. If any provision hereof limits, qualifies or conflicts with another provision hereof which is required or deemed to be included in this Indenture by any of the provisions of the Trust Indenture Act, such required provision shall control. If any provision of this Indenture modifies or excludes any provision of the Trust Indenture Act that may be so modified or excluded, the latter provision shall be deemed to apply to this Indenture as so modified or to be excluded, as the case may be.

ARTICLE TWO—SECURITIES FORMS

SECTION 2.01. Forms of Securities. The Registered Securities, if any, of each Series and the Bearer Securities, if any, of each Series and related coupons shall be substantially in the form of Exhibit A hereto or in such other form as shall be established in one or more indentures supplemental hereto or approved from time to time by or pursuant to a Board Resolution in accordance with Section 3.01, shall have such appropriate insertions, omissions, substitutions and other variations as are required or permitted by this Indenture or any indenture supplemental hereto, and may have such letters, numbers or other marks of identification or designation and such legends or endorsements placed thereon as the Company may deem appropriate and as are not inconsistent with the provisions of this Indenture, or as may be required to comply with any law or with any rule or regulation made pursuant thereto or with any rule or regulation of any stock exchange, automated quotation system or clearing agency, or to conform to usage.

Unless otherwise specified as contemplated by Section 3.01, Bearer Securities shall have interest coupons attached.

The definitive Securities and coupons shall be printed, lithographed or engraved or produced by any combination of these methods on a steel engraved border or steel engraved borders or mechanically reproduced on safety paper or may be produced in any other manner, all as determined by the officers executing such Securities or coupons, as evidenced by their execution of such Securities or coupons.

SECTION 2.02. Form of Trustee’s Certificate of Authentication. Subject to Section 6.11, the Trustee’s certificate of authentication shall be in substantially the following form:

This is one of the Securities of the Series designated therein referred to in the within- mentioned Indenture.


	[ ],
	as Trustee

Dated:	By:
		Authorized Signatory

SECTION 2.03. Securities Issuable in Global Form. If Securities of or within a Series are issuable in the form of one or more Global Securities, then, notwithstanding clause (8) of Section 3.01 and the provisions of Section 3.02, any such Global Security or Securities may provide that it or they shall represent the aggregate amount of all Outstanding Securities of such Series (or such lesser amount as is permitted by the terms thereof) from time to time endorsed thereon and may also provide that the aggregate amount of Outstanding Securities of such Series represented thereby may from time to time be increased or decreased to reflect exchanges. Any endorsement of any Global Security to reflect the amount, or any increase or decrease in the amount, or changes in the rights of Holders thereof, of Outstanding Securities represented thereby shall be made (or caused to be made) by the Trustee in such manner or by such Person or Persons as shall be specified therein or in the Company Order to be delivered to the Trustee pursuant to Section 3.03 or 3.04. Subject to the provisions of Section 3.03 and, if applicable, Section 3.04, the Trustee shall deliver and redeliver any Global Security in permanent global form in the manner and upon instructions given by the Person or Persons specified therein or in the applicable Company Order. If a Company Order pursuant to Section 3.03 or 3.04 has been, or simultaneously is, delivered, any instructions by the Company with respect to endorsement or delivery or redelivery of a Global Security shall be in writing but need not comply with Section 1.02 and need not be accompanied by an Opinion of Counsel.

The provisions of the last sentence of Section 3.03 shall apply to any Security represented by a Global Security if such Security was never issued and sold by the Company and the Company delivers to the Trustee the Global Security together with written instructions (which need not comply with Section 1.02 and need not be accompanied by an Opinion of Counsel) with regard to the reduction in the principal amount of Securities represented thereby, together with the written statement contemplated by the last sentence of Section 3.03.

Notwithstanding the provisions of Section 3.07, unless otherwise specified as contemplated by Section 3.01, payment of principal of and any premium or Make-Whole Amount, if any, and interest, if any, on any Global Security in permanent global form shall be made to the registered Holder thereof.

Notwithstanding the provisions of Section 3.08 and except as provided in the preceding paragraph, the Company, the Trustee and any agent of the Company and the Trustee shall treat as the Holder of such principal amount of Outstanding Securities represented by a permanent Global Security (i) in the case of a permanent Global Security in registered form, the Holder of such permanent Global Security in registered form, or (ii) in the case of a permanent Global Security in bearer form, Euroclear or Clearstream.

Any Global Security authenticated and delivered hereunder shall bear a legend in substantially the following form:

“This Security is a Global Security within the meaning set forth in the Indenture hereinafter referred to and is registered in the name of a Depository or a nominee of a Depository. This Security is exchangeable for Securities registered in the name of a person other than the Depository or its nominee only in the limited circumstances described in the Indenture, and may not be transferred except as a whole by the Depository to a nominee of the Depository or by a nominee of the Depository to the Depository or another nominee of the Depository or by the Depository or its nominee to a successor Depository or its nominee.”

SECTION 2.04. Form of Guarantee. If the Securities of any Series are entitled to the benefits of Article Sixteen of this Indenture, there shall be endorsed on such Security a guarantee in substantially the form of Exhibit B, or in such other form as shall be established by or pursuant to a Board Resolution or in one or more indentures supplemental hereto, in each case with such appropriate insertions, omissions, substitutions and other variations as are required or permitted by this Indenture.

ARTICLE THREE—THE SECURITIES

SECTION 3.01. Amount Unlimited; Issuable in Series. The aggregate principal amount of Securities which may be authenticated and delivered under this Indenture is unlimited.

The Securities may be issued in one or more Series, each of which shall be authorized pursuant to Board Resolutions of the Company. There shall be established in one or more Board Resolutions and, if applicable, a Guarantor’s Board Resolution (with respect to Guaranteed Securities) or pursuant to authority granted by one or more Board Resolutions and, if applicable, one or more Guarantor’s Board Resolution (with respect to Guaranteed Securities) and, subject to Section 3.03, set forth in an Officers’ Certificate or Guarantor’s Officers’ Certificate, as the case may be, or established in one or more indentures supplemental hereto, prior to the issuance of Securities of any Series:

(1) the title of the Securities of the Series, including “CUSIP” numbers (which shall distinguish the Securities of such Series from all other Series of Securities);

(2) any limit upon the aggregate principal amount of the Securities of the Series that may be authenticated and delivered under this Indenture (except for Securities authenticated and delivered upon registration of transfer of, or in exchange for, or in lieu of, other Securities of the Series pursuant to Section 3.04, 3.05, 3.06, 9.06, 11.07 or 13.05) and the minimum authorized denominations with respect to the Securities of such Series;

(3) the price (expressed as a percentage of the principal amount thereof) at which such Securities will be issued and, if other than the principal amount thereof, the portion of the principal amount thereof payable upon declaration of acceleration of the maturity thereof, pursuant to Section 5.02;

(4) the date or dates, or the method for determining such date or dates, on which the principal of such Securities will be payable;

(5) the rate or rates (which may be fixed or variable), or the method by which such rate or rates shall be determined, at which such Securities will bear interest, if any;

(6) the date or dates, or the method for determining such date or dates, from which any such interest will accrue, the Interest Payment Dates on which any such interest will be payable, the Regular Record Dates for such Interest Payment Dates, or the method by which such dates shall be determined, the Persons to whom such interest, if any, shall be payable, and the basis upon which interest shall be calculated if other than that of a 360-day year of twelve 30-day months;

(7) the Make-Whole Amount, if any, or method for determining the Make-Whole Amount, if any, payable with respect to such Securities, and the terms upon which such amount, if any, will be payable;

(8) the place or places where the principal of (and premium or Make-Whole Amount, if any) and interest, if any, on such Securities will be payable, where such Securities may be surrendered for registration of transfer or exchange and where notices or demands to or upon the Company in respect of such Securities and this Indenture may be served;

(9) the period or periods, if any, within which, the price or prices at which and the other terms and conditions upon which such Securities may, pursuant to any optional or mandatory redemption provisions, be redeemed, as a whole or in part, at the option of the Company;

(10) the obligation, if any, of the Company to redeem, repay or purchase such Securities pursuant to any sinking fund or analogous provision or at the option of a Holder thereof, and the period or periods within which, the price or prices at which and the other terms and conditions upon which such Securities will be redeemed, repaid or purchased, as a whole or in part, pursuant to such obligation;

(11) if other than Dollars, the currency or currencies in which such Securities are denominated and payable, which may be a foreign currency or units of two or more foreign currencies or a composite currency or currencies, the manner of determining the equivalent thereof in Dollars for purposes of the definition of “Outstanding” in Section 1.01, and the terms and conditions relating thereto;

(12) whether the amount of payments of principal of (and premium or Make-Whole Amount, if any, including any amount due upon redemption, if any) or interest, if any, on such Securities may be determined with reference to an index, formula or other method (which index, formula or method may, but need not be, based on the yield on or trading price of other securities, including United States Treasury securities or on a currency, currencies, currency unit or units, or composite currency or currencies) and the manner in which such amounts shall be determined;

(13) whether the principal of (and premium or Make-Whole Amount, if any) or interest, if any, on the Securities of the Series are to be payable, at the election of the Company or a Holder thereof, in a currency or currencies, currency unit or units or composite currency or currencies other than that in which such Securities are denominated or stated to be payable, the period or periods within which, and the terms and conditions upon which, such election may be made, and the time and manner of, and identity of the exchange rate agent with responsibility for, determining the exchange rate between the currency or currencies, currency unit or units or composite currency or currencies in which such Securities are denominated or stated to be payable and the currency or currencies, currency unit or units or composite currency or currencies in which such Securities are to be so payable;

(14) provisions, if any, granting special rights to the Holders of Securities of the Series upon the occurrence of such events as may be specified;

(15) any deletions from, modifications of or additions to the Events of Default or covenants of the Company with respect to Securities of the Series, whether or not such Events of Default or covenants are consistent with the Events of Default or covenants set forth herein;

(16) whether and under what circumstances the Company will pay any additional amounts on such Securities in respect of any tax, assessment or governmental charge and, if so, whether the Company will have the option to redeem such Securities in lieu of making such payment;

(17) whether Securities of the Series are to be issuable as Registered Securities, Bearer Securities (with or without coupons) or both, any restrictions applicable to the offer, sale or delivery of Bearer Securities and the terms upon which Bearer Securities of the Series may be exchanged for Registered Securities of the Series and vice versa (if permitted by applicable laws and regulations), whether any Securities of the Series are to be issuable initially in temporary global form and whether any Securities of the Series are to be issuable in permanent global form with or without coupons and, if so, whether beneficial owners of interests in any such permanent global Security may, or shall be required to, exchange such interests for Securities of such Series and of like tenor of any authorized form and denomination and the circumstances under which any such exchanges may, or shall be required to, occur, if other than in the manner provided in the Indenture, and, if Registered Securities of the Series are to be issuable as a Global Security, the identity of the depository for such Series;

(18) the date as of which any Bearer Securities of the Series and any temporary Global Security representing outstanding Securities of the Series shall be dated if other than the date of original issuance of the first Security of the Series to be issued;

(19) the Person to whom interest, if any, on any Registered Security of the Series shall be payable, if other than the Person in whose name that Security (or one or more Predecessor Securities) is registered at the close of business on the Regular Record Date for such interest, if any, the manner in which, or the Person to whom, any interest on any Bearer Security of the Series shall be payable, if otherwise than upon presentation and surrender of the coupons appertaining thereto as they severally mature, and the extent to which, or the manner in which, interest, if any, payable on a temporary Global Security on an Interest Payment Date will be paid if other than in the manner provided herein; provided, however, in each case, that the manner of determining such Person or making such payment shall be acceptable to the Trustee (as not imposing on it any undue administrative burden or risk of liability);

(20) the applicability, if any, of the defeasance and covenant defeasance provisions of Article Fourteen hereof to the Securities of the Series;

(21) if the Securities of such Series are to be issuable in definitive form (whether upon original issue or upon exchange of a temporary Security of such Series) only upon receipt of certain certificates or other documents or satisfaction of other conditions, then the form and/or terms of such certificates, documents or conditions;

(22) designation of the Trustee, if different from the Trustee under the Indenture, with respect to such Series and the terms applicable to such Trustee (which shall be accepted by such Trustee by its execution and delivery of a supplemental indenture as provided therein);

(23) if the Securities of the Series are to be Guaranteed Securities,

(24) whether the Securities may be converted into, or exchanged for, Capital Stock of the Company or other securities; and

(25) any other terms of the Series (which terms shall not be inconsistent with the provisions of this Indenture).

All Securities of any one Series and the coupons appertaining to any Bearer Securities of such Series shall be substantially identical except, in the case of Registered Securities, as to denomination and except as may otherwise be provided in or pursuant to such Board Resolution (subject to Section 3.03) and set forth in such Officers’ Certificate or in any such indenture supplemental hereto. All Securities of any one Series need not be issued at the same time and, unless otherwise provided, a Series may be reopened, without the consent of the Holders, for issuances of additional Securities of such Series.

If any of the terms of the Securities of any Series are established by action taken pursuant to one or more Board Resolutions or, if applicable, a Guarantor’s Board Resolution, a copy of an appropriate record of such action(s) shall be certified by the Secretary or an Assistant Secretary of the Company on behalf of the Company or the Company on behalf of the Guarantor, as the case may be, and delivered to the Trustee at or prior to the delivery of the Officers’ Certificate of Guarantor’s Officers’ Certificate setting forth the terms of the Securities of such Series.

SECTION 3.02. Denominations. The Securities of each Series shall be issuable in such denominations as shall be specified as contemplated by Section 3.01. With respect to Securities of any Series denominated in Dollars, in the absence of any such provisions with respect to the Securities of any Series, the Securities of such Series, other than Global Securities (which may be of any denomination), shall be issuable in denominations of $1,000 and any integral multiple thereof or the equivalent amounts thereof in the case of Securities denominated in the Foreign Currency or currency unit.

SECTION 3.03. Execution, Authentication, Delivery and Dating. The Securities and any coupons appertaining thereto shall be executed on behalf of the Company by the Chairman of the Board, the President or one of the Vice Presidents of Boston Properties, under its corporate seal reproduced thereon, and attested by its Secretary or one of its Assistant Secretaries and if such Securities are Guaranteed Securities, on behalf of the Guarantor by Boston Properties, as general partner of the Guarantor, by the Chairman of the Board, the President or one of the Vice Presidents of Boston Properties, under its corporate seal reproduced thereon, and attested by its Secretary or one of its Assistant Secretaries. The signature of any of these officers on the Securities and coupons may be manual or facsimile signatures of the present or any future such authorized officer and may be imprinted or otherwise reproduced on the Securities.

Securities and coupons bearing the manual or facsimile signatures of individuals who were at any time the proper officers of the Company shall bind the Company or Guarantor, as the case may be, notwithstanding that such individuals or any of them have ceased to hold such offices prior to the authentication and delivery of such Securities or did not hold such offices at the date of such Securities or coupons.

At any time and from time to time after the execution and delivery of this Indenture, the Company may deliver Securities of any Series, together with any coupon appertaining thereto, executed by the Company and, if applicable, having endorsed thereon the Guarantees executed by the Guarantor to the Trustee for authentication, together with a Company Order for the authentication and delivery of such Securities (accompanied by a copy of the Board Resolution and the Officers’ Certificate or supplemental indenture contemplated by Section 3.01), and the Trustee in accordance with the Company Order shall authenticate and deliver such Securities; provided, however, that, in connection with its original issuance, no Bearer Security shall be mailed or otherwise delivered to any location in the United States; and provided further that, unless otherwise specified with respect to any Series of Securities pursuant to Section 3.01, a Bearer Security may be delivered in connection with its original issuance only if the Person entitled to receive such Bearer Security shall have furnished a certificate to Euroclear or Clearstream, as the case may be, in the form set forth in Exhibit C-1 to this Indenture or such other certificate as may be specified by the Company with respect to any Series of Securities pursuant to Section 3.01, dated no earlier than 15 days prior to the earlier of the date on which such Bearer Security is delivered and the date on which any temporary Security first becomes exchangeable for such Bearer Security in accordance with the terms of such temporary Security and this Indenture. If any Security shall be represented by a permanent Global Security, then, for purposes of this Section and Section 3.04, the notation of a beneficial owner’s interest therein upon original issuance of such Security or upon exchange of a portion of a temporary Global Security shall be deemed to be delivery in connection with its original issuance of such

beneficial owner’s interest in such permanent Global Security. Except as permitted by Section 3.06, the Trustee shall not authenticate and deliver any Bearer Security unless all appurtenant coupons for interest then matured have been detached and canceled.

If all the Securities of any Series are not to be issued at one time and if the Board Resolution or supplemental indenture establishing such Series shall so permit, such Company Order may set forth procedures acceptable to the Trustee for the issuance of such Securities and determining the terms of particular Securities of such Series, such as interest rate or formula, maturity date, date of issuance and date from which interest shall accrue. In authenticating such Securities, and accepting the additional responsibilities under this Indenture in relation to such Securities, the Trustee shall be provided with, and (subject to TIA Section 315(a) through 315(d)) shall be fully protected in relying upon,

(i) an Opinion of Counsel stating that

(a) the form or forms of such Securities and any coupons have been established in conformity with the provisions of this Indenture;

(b) the terms of such Securities and any coupons have been established in conformity with the provisions of this Indenture; and

(c) such Securities, together with any coupons appertaining thereto, when completed by appropriate insertions and executed and delivered by the Company to the Trustee for authentication in accordance with this Indenture, authenticated and delivered by the Trustee in accordance with this Indenture and issued by the Company in the manner and subject to any conditions specified in such Opinion of Counsel, will constitute legal, valid and legally binding obligations of the Company, enforceable in accordance with their terms, subject to applicable bankruptcy, insolvency, fraudulent transfer, reorganization and other similar laws of general applicability relating to or affecting the enforcement of creditors’ rights generally and to general equitable principles;

(d) such Guarantees, when the Securities upon which they shall have been endorsed shall have been authenticated and delivered by the Trustee and issued by the Company in the manner and subject to any conditions specified in such Opinion of Counsel, will constitute valid and legally binding obligations of Guarantor enforceable in accordance with their terms, subject to applicable bankruptcy, insolvency, fraudulent transfer, reorganization and other similar laws of general applicability relating to or affecting the enforcement of creditors’ rights generally and to general equitable principles; and

(ii) an Officers’ Certificate and, if applicable, a Guarantor’s Officers’ Certificate stating that all conditions precedent provided for in this Indenture relating to the issuance of the Securities have been complied with and that, to the best of the knowledge of the signers of such certificate, that no Event of Default with respect to any of the Securities shall have occurred and be continuing.

If such form or terms have been so established, the Trustee shall not be required to authenticate such Securities (or to enter into the related supplemental indenture, if applicable) if the issue of such Securities pursuant to this Indenture will affect the Trustee’s own rights, duties, obligations or immunities under the Securities and this Indenture or otherwise in a manner which is not reasonably acceptable to the Trustee.

Notwithstanding the provisions of Section 3.01 and of the preceding paragraph, if all the Securities of any Series are not to be issued at one time, it shall not be necessary to deliver an Officers’ Certificate or Guarantor’s Officers’ Certificate otherwise required pursuant to Section 3.01 or a Company Order, or an Opinion of Counsel or an Officers’ Certificate or a Guarantor’s Officers’ Certificate otherwise required pursuant to the preceding paragraph at the time of issuance of each Security of such Series, but such order, opinion and certificates, with appropriate modifications to cover such future issuances, shall be delivered at or before the time of issuance of the first Security of such Series.

Each Registered Security shall be dated the date of its authentication and each Bearer Security shall be dated as of the date specified as contemplated by Section 3.01.

No Security or Guarantee endorsed thereon or coupon shall be entitled to any benefit under this Indenture or be valid or obligatory for any purpose unless there appears on such Security or Security to which such coupon appertains a certificate of authentication substantially in the form provided for herein duly executed by the Trustee (subject to Section 6.11) by manual signature of an authorized signatory, and such certificate upon any Security shall be conclusive evidence, and the only evidence, that such Security has been duly authenticated and delivered hereunder and is entitled to the benefits of this Indenture. Notwithstanding the foregoing, if any Security (including a Global Security) shall have been authenticated and delivered hereunder but never issued and sold by the Company, and the Company shall deliver such Security to the Trustee for cancellation as provided in Section 3.09 together with a written statement (which need not comply with Section 1.02 and need not be accompanied by an Opinion of Counsel) stating that such Security has never been issued and sold by the Company, for all purposes of this Indenture such Security shall be deemed never to have been authenticated and delivered hereunder and shall never be entitled to the benefits of this Indenture.

SECTION 3.04. Temporary Securities.

(a) Pending the preparation of definitive Securities of any Series, the Company and the Guarantor, if such Securities are Guaranteed Securities, may execute, and upon Company Order or Guarantor Order, as the case may be, the Trustee shall authenticate and deliver, temporary Securities which are printed, lithographed, typewritten, mimeographed or otherwise produced, in any authorized denomination, substantially of the tenor of the definitive Securities in lieu of which they are issued, in registered form, or, if authorized, in bearer form with one or more coupons or without coupons, and, if applicable, having endorsed thereon the Guarantees duly executed by the Guarantor substantially of the tenor of the definitive Guarantees and with such appropriate insertions, omissions, substitutions and other variations as the officers executing such Securities may determine, as conclusively evidenced by their execution of such Securities and, if applicable, the Guarantees. In the case of Securities of any Series, such temporary Securities may be in global form.

Except in the case of temporary Global Securities (which shall be exchanged as otherwise provided herein or as otherwise provided in or pursuant to a Board Resolution or supplemental indenture pursuant to Section 3.01), if temporary Securities of any Series are issued, the Company will cause definitive Securities of that Series to be prepared without unreasonable delay. After the preparation of definitive Securities of such Series, the temporary Securities of such Series shall be exchangeable for definitive Securities of such Series upon surrender of the temporary Securities of such Series at the office or agency of the Company in a Place of Payment for that Series, without charge to the Holder. Upon surrender for cancellation of any one or more temporary Securities of any Series (accompanied by any non-matured coupons appertaining thereto), the Company and the Guarantor, if such Securities are Guaranteed Securities, shall execute (in accordance with a Company Order and, if applicable, the Guarantor Order delivered at or prior to the authentication of the first definitive security to such Series) and the Trustee shall authenticate and deliver in exchange therefor a like principal amount of definitive Securities of the same Series of authorized denominations and, if applicable, having endorsed thereon the Guarantees duly executed by the Guarantor substantially of the tenor of the definitive Guarantees; provided, however, that no definitive Bearer Security shall be delivered in exchange for a temporary Registered Security; and provided further that a definitive Bearer Security shall be delivered in exchange for a temporary Bearer Security only in compliance with the conditions set forth in Section 3.03. Until so exchanged, the temporary Securities of any Series shall in all respects be entitled to the same benefits under this Indenture as definitive Securities of such Series.

(b) Unless otherwise provided in or pursuant to a Board Resolution or supplemental indenture pursuant to Section 3.01, the following provisions of this Section 3.04(b) shall govern the exchange of temporary Securities other than through the facilities of DTC. If any such temporary Security is issued in global form, then such temporary Global Security shall, unless otherwise provided therein, be delivered to the London office of a depository or common depository upon and pursuant to written direction of the Company (the “Common Depository”), for the benefit of Euroclear and Clearstream, for credit to the respective accounts of the beneficial owners of such Securities (or to such other accounts as they may direct).

the Common Depository); provided, however, that, unless otherwise specified in such temporary Global Security, upon such presentation by the Common Depository, such temporary Global Security shall be accompanied by a certificate dated the Exchange Date or a subsequent date and signed by Euroclear as to the portion of such temporary Global Security held for its account then to be exchanged and a certificate dated the Exchange Date or a subsequent date and signed by Clearstream as to the portion of such temporary Global Security held for its account then to be exchanged, each in the form set forth in Exhibit C-2 to this Indenture or in such other form as may be established pursuant to Section 3.01; and provided further that definitive Bearer Securities shall be delivered in exchange for a portion of a temporary Global Security only in compliance with the requirements of Section 3.03.

Unless otherwise specified in such temporary Global Security, the interest of a beneficial owner of Securities of a Series in a temporary Global Security shall be exchanged for definitive Securities of the same Series and of like tenor following the Exchange Date when the account holder instructs Euroclear or Clearstream, as the case may be, to request such exchange on his behalf and delivers to Euroclear or Clearstream, as the case may be, a certificate in the form set forth in Exhibit C-1 to this Indenture (or in such other form as may be established pursuant to Section 3.01), dated no earlier than 15 days prior to the Exchange Date, copies of which certificate shall be available from the offices of Euroclear and Clearstream, the Trustee, any Authenticating Agent appointed for such Series of Securities and each Paying Agent. Unless otherwise specified in such temporary Global Security, any such exchange shall be made free of charge to the beneficial owners of such temporary Global Security, except that a Person receiving definitive Securities must bear the cost of insurance, postage, transportation and the like unless such Person takes delivery of such definitive Securities in person at the offices of Euroclear or Clearstream. Definitive Securities in bearer form to be delivered in exchange for any portion of a temporary Global Security shall be delivered only to an address located outside the United States.

Until exchanged in full as hereinabove provided, the temporary Securities of any Series shall in all respects be entitled to the same benefits under this Indenture as definitive Securities of the same Series and of like tenor authenticated and delivered hereunder, except that, unless otherwise specified as contemplated by Section 3.01, interest, if any, payable on a temporary Global Security on an Interest Payment Date for Securities of such Series occurring prior to the applicable Exchange Date shall be payable to Euroclear and Clearstream on such Interest Payment Date upon delivery by Euroclear and Clearstream to the Trustee of a certificate or certificates in the form set forth in Exhibit C-2 to this Indenture (or in such other forms as may be established pursuant to Section 3.01), for credit without further interest on or after such Interest Payment Date to the respective accounts of Persons who are the beneficial owners of such temporary Global Security on such Interest Payment Date and who have each delivered to Euroclear or Clearstream, as the case may be, a certificate dated no earlier than 15 days prior to the Interest Payment Date occurring prior to such Exchange Date in the form set forth as Exhibit C-1 to this Indenture (or in such other forms as may be established pursuant to Section 3.01). Notwithstanding anything to the contrary herein contained, the certifications made pursuant to this paragraph shall satisfy the certification requirements of the preceding two paragraphs of this Section 3.04(b) and of the third paragraph of Section 3.03 of this Indenture and the interests of the Persons who are the beneficial owners of the temporary Global Security with respect to which such certification was made will be exchanged for definitive Securities of the same Series

and of like tenor on the Exchange Date or the date of certification if such date occurs after the Exchange Date, without further act or deed by such beneficial owners. Except as otherwise provided in this paragraph, no payments of principal or interest, if any, owing with respect to a beneficial interest in a temporary Global Security will be made unless and until such interest in such temporary Global Security shall have been exchanged for an interest in a definitive Security. Any interest so received by Euroclear and Clearstream and not paid as herein provided shall be returned to the Trustee prior to the expiration of two years after such Interest Payment Date in order to be repaid to the Company.

With respect to Exhibit C-1 or C-2 to this Indenture, the Company may, in its discretion and if required or desirable under applicable law, substitute one or more other forms of such exhibits for such exhibits, eliminate the requirement that any or all certificate be provided, or change the time that any certificate may be required, provided that such substitute form or forms or notice of elimination or change of such certification requirement have theretofore been delivered to the Trustee with a Company Request and such form or forms, elimination or change is reasonably acceptable to the Trustee.

SECTION 3.05. Registration, Registration of Transfer and Exchange. The Company shall cause to be kept at the Corporate Trust Office of the Trustee or in any office or agency of the Company in a Place of Payment a register for each Series of Securities (the registers maintained in such office or in any such office or agency of the Company in a Place of Payment being herein sometimes referred to collectively as the “Security Register”) in which, subject to such reasonable regulations as it may prescribe, the Company shall provide for the registration of Registered Securities and of transfers of Registered Securities. The Security Register shall be in written form or any other form capable of being converted into written form within a reasonable time. The Trustee, at its Corporate Trust Office, is hereby initially appointed “Security Registrar” for the purpose of registering Registered Securities and transfers of Registered Securities on such Security Register as herein provided. In the event that the Trustee shall cease to be Security Registrar, it shall have the right to examine, and be provided a copy of, the Security Register at all reasonable times.

Subject to the provisions of this Section 3.05, upon surrender for registration of transfer of any Registered Security of any Series at any office or agency of the Company in a Place of Payment for that Series, the Company shall execute, and the Trustee shall authenticate and deliver, in the name of the designated transferee or transferees, one or more new Registered Securities of the same Series, of any authorized denominations and of a like aggregate principal amount, bearing a number not contemporaneously outstanding, and containing identical terms and provisions.

Subject to the provisions of this Section 3.05, at the option of the Holder, Registered Securities of any Series may be exchanged for other Registered Securities of the same Series, of any authorized denomination or denominations and of a like aggregate principal amount, containing identical terms and provisions, upon surrender of the Registered Securities to be exchanged at any such office or agency. Whenever any such Registered Securities are so surrendered for exchange, the Company and Guarantor, if such Securities are Guaranteed Securities, shall execute, and the Trustee shall authenticate and deliver, the Registered Securities which the Holder making the exchange is entitled to receive. Unless otherwise specified with respect to any Series of Securities as contemplated by Section 3.01, Bearer Securities may not be issued in exchange for Registered Securities.

If (but only if) permitted by the applicable Board Resolution and (subject to Section 3.03) set forth in the applicable Officers’ Certificate, or in any indenture supplemental hereto, delivered as contemplated by Section 3.01, at the option of the Holder, Bearer Securities of any Series may be exchanged for Registered Securities of the same Series of any authorized denominations and of a like aggregate principal amount and tenor, upon surrender of the Bearer Securities to be exchanged at any such office or agency, with all unmatured coupons and all matured coupons in default thereto appertaining. If the Holder of a Bearer Security is unable to produce any such unmatured coupon or coupons or matured coupon or coupons in default, any such permitted exchange may be effected if the Bearer Securities are accompanied by payment in funds acceptable to the Company (or to the Trustee for the Security in case of matured coupons in default) in an amount equal to the face amount of such missing coupon or coupons, or the surrender of such missing coupon or coupons may be waived by the Company and the Trustee if there is furnished to them such security or indemnity as they may require to save each of them and any Paying Agent harmless. If thereafter the Holder of such Security shall surrender to any Paying Agent any such missing coupon in respect of which such a payment shall have been made, such Holder shall be entitled to receive the amount of such payment; provided, however, that, except as otherwise provided in Section 10.02, interest, if any, represented by coupons shall be payable only upon presentation and surrender of those coupons at an office or agency located outside the United States. Notwithstanding the foregoing, in case a Bearer Security of any Series is surrendered at any such office or agency in a permitted exchange for a Registered Security of the same Series and like tenor after the close of business at such office or agency on (i) any Regular Record Date and before the opening of business at such office or agency on the relevant Interest Payment Date, or (ii) any Special Record Date and before the opening of business at such office or agency on the related proposed date for payment of Defaulted Interest, such Bearer Security shall be surrendered without the coupon relating to such Interest Payment Date or proposed date for payment, as the case may be, and interest, if any, or Defaulted Interest, as the case may be, will not be payable on such Interest Payment Date or proposed date for payment, as the case may be, in respect of the Registered Security issued in exchange for such Bearer Security, but will be payable only to the Holder of such coupon when due in accordance with the provisions of this Indenture. Whenever any Securities are so surrendered for exchange, the Company shall execute, and the Trustee shall authenticate and deliver, the Securities which the Holder making the exchange is entitled to receive.

successor depository for such Global Security or Securities is not appointed by the Company within 90 days after the Company receives such notice or becomes aware of such unwillingness, inability or ineligibility, (x) the Company delivers to the Trustee for Securities of such Series in registered form a Company Order stating that the Securities of such Series shall be exchangeable, (y) an Event of Default has occurred and is continuing and the beneficial owners representing a majority in principal amount of the applicable Series of Securities represented by such Global Security or Securities advise DTC to cease acting as depository for such Global Security or Securities or (z) the Company, in its sole discretion, determines at any time that all Outstanding Securities (but not less than all) of any Series issued or issuable in the form of one or more Global Securities shall no longer be represented by such Global Security or Securities, then the Company shall execute, and the Trustee shall authenticate and deliver definitive Securities of like Series, rank, tenor and terms in definitive form in an aggregate principal amount equal to the principal amount of such Global Security or Securities. If any beneficial owner of an interest in a permanent global Security is otherwise entitled to exchange such interest for Securities of such Series and of like tenor and principal amount of another authorized form and denomination, as specified as contemplated by Section 3.01 and provided that any applicable notice provided in the permanent Global Security shall have been given, then without unnecessary delay but in any event not later than the earliest date on which such interest may be so exchanged, the Company shall execute, and the Trustee shall authenticate and deliver definitive Securities in aggregate principal amount equal to the principal amount of such beneficial owner’s interest in such permanent Global Security. On or after the earliest date on which such interests may be so exchanged, such permanent Global Security shall be surrendered for exchange by DTC or such other depository as shall be specified in the Company Order with respect thereto to the Trustee, as the Company’s agent for such purpose; provided, however, that no such exchanges may occur during a period beginning at the opening of business 15 days before any selection of Securities to be redeemed and ending on the relevant Redemption Date if the Security for which exchange is requested may be among those selected for redemption; and provided further that no Bearer Security delivered in exchange for a portion of a permanent Global Security shall be mailed or otherwise delivered to any location in the United States. If a Registered Security is issued in exchange for any portion of a permanent Global Security after the close of business at the office or agency where such exchange occurs on (i) any Regular Record Date and before the opening of business at such office or agency on the relevant Interest Payment Date, or (ii) any Special Record Date and the opening of business at such office or agency on the related proposed date for payment of Defaulted Interest, interest, if any, or Defaulted Interest, as the case may be, will not be payable on such Interest Payment Date or proposed date for payment, as the case may be, in respect of such Registered Security, but will be payable on such Interest Payment Date or proposed date for payment, as the case may be, only to the Person to whom interest, if any, in respect of such portion of such permanent Global Security is payable in accordance with the provisions of this Indenture.

All Securities issued upon any registration of transfer or exchange of Securities shall be the valid obligations of the Company and the Guarantor, if such Securities are Guaranteed Securities, respectively, evidencing the same debt, and entitled to the same benefits under this Indenture, as the Securities surrendered upon such registration of transfer or exchange.

Every Registered Security presented or surrendered for registration of transfer or for exchange or redemption shall (if so required by the Company or the Security Registrar) be duly

endorsed, or be accompanied by a written instrument of transfer in form satisfactory to the Company and the Security Registrar, duly executed by the Holder thereof or his attorney duly authorized in writing.

No service charge shall be made for any registration of transfer or exchange of Securities, but the Company may require payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in connection with any registration of transfer or exchange of Securities, other than exchanges pursuant to Section 3.04, 9.06, 11.07 or 13.05 not involving any transfer.

The Company or the Trustee, as applicable, shall not be required (i) to issue, register the transfer of or exchange any Security if such Security may be among those selected for redemption during a period beginning at the opening of business 15 days before selection of the Securities to be redeemed under Section 11.03 and ending at the close of business on (A) if such Securities are issuable only as Registered Securities, the day of the mailing of the relevant notice of redemption and (B) if such Securities are issuable as Bearer Securities, the day of the first publication of the relevant notice of redemption or, if such Securities are also issuable as Registered Securities and there is no publication, the mailing of the relevant notice of redemption, or (ii) to register the transfer of or exchange any Registered Security so selected for redemption in whole or in part, except, in the case of any Registered Security to be redeemed in part, the portion thereof not to be redeemed, or (iii) to exchange any Bearer Security so selected for redemption except that such a Bearer Security may be exchanged for a Registered Security of that Series and like tenor, provided that such Registered Security shall be simultaneously surrendered for redemption, or (iv) to issue, register the transfer of or exchange any Security which has been surrendered for repayment at the option of the Holder, except the portion, if any, of such Security not to be so repaid.

Furthermore, notwithstanding any other provision of this Section 3.05, the Company will not be required to exchange any Securities if, as a result of the exchange, the Company would suffer adverse consequences under any United States law or regulation.

SECTION 3.06. Mutilated, Destroyed, Lost and Stolen Securities. If any mutilated Security or a Security with a mutilated coupon appertaining to it is surrendered to the Trustee, the Company or the Guarantor, if such Securities are Guaranteed Securities, together with, in proper cases, such security or indemnity as may be required by the Company, the Guarantor or the Trustee to save each of them or any agent of either of them harmless, the Company and Guarantor, if such Securities are Guaranteed Securities, shall execute and the Trustee shall authenticate and deliver in exchange therefor a new Security of the same Series and principal amount, containing identical terms and provisions and bearing a number not contemporaneously outstanding, with coupons corresponding to the coupons, if any, appertaining to the surrendered Security.

and the Guarantor, if such Securities are Guaranteed Securities, shall execute and upon request the Trustee shall authenticate and deliver, in lieu of any such destroyed, lost or stolen Security or in exchange for the Security to which a destroyed, lost or stolen coupon appertains (with all appurtenant coupons not destroyed, lost or stolen), a new Security of the same Series and principal amount, containing identical terms and provisions and bearing a number not contemporaneously outstanding and, if applicable, having a Guarantee endorsed thereon, with coupons corresponding to the coupons, if any, appertaining to such destroyed, lost or stolen Security or to the Security to which such destroyed, lost or stolen coupon appertains.

Notwithstanding the provisions of the previous two paragraphs, in case any such mutilated, destroyed, lost or stolen Security or coupon has become or is about to become due and payable, the Company in its discretion may, instead of issuing a new Security, with coupons corresponding to the coupons, if any, appertaining to such destroyed, lost or stolen Security or to the Security to which such destroyed, lost or stolen coupon appertains, pay such Security or coupon if the applicant for such payment shall furnish to the Company, the Guarantor, if applicable, and the Trustee for such Security such security or indemnity as may be required by them to save each of them harmless, and in the case of destruction, loss or theft, evidence satisfactory to the Company, the Guarantor, if applicable, and Trustee and any agent of any of them of the destruction, loss or theft of such Security and the ownership thereof; provided, however, that payment of principal of (and premium or Make-Whole Amount, if any), and interest, if any, on, Bearer Securities shall, except as otherwise provided in Section 10.02, be payable only at an office or agency located outside the United States and, unless otherwise specified as contemplated by Section 3.01, any interest on Bearer Securities shall be payable only upon presentation and surrender of the coupons appertaining thereto.

Upon the issuance of any new Security under this Section, the Company may require the payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in relation thereto and any other expenses (including the fees and expenses of the Trustee) connected therewith.

Every new Security of any Series with its coupons, if any, issued pursuant to this Section in lieu of any destroyed, lost or stolen Security, or in exchange for a Security to which a destroyed, lost or stolen coupon appertains, shall constitute an original additional contractual obligation of the Company and the Guarantor, if such Securities are Guaranteed Securities, respectively, whether or not the destroyed, lost or stolen Security and its coupons, if any, or the destroyed, lost or stolen coupon shall be at any time enforceable by anyone, and shall be entitled to all the benefits of this Indenture equally and proportionately with any and all other Securities of that Series and their coupons, if any, duly issued hereunder.

The provisions of this Section are exclusive and shall preclude (to the extent lawful) all other rights and remedies with respect to the replacement or payment of mutilated, destroyed, lost or stolen Securities or coupons.

Security (or one or more Predecessor Securities) is registered at the close of business on the Regular Record Date for such interest payment, if any, at the office or agency of the Company maintained for such purpose pursuant to Section 10.02; provided, however, that each installment of interest on any Registered Security may at the Company’s option be paid by (i) mailing a check for such interest, if any, payable to or upon the written order of the Person entitled thereto pursuant to Section 3.08, to the address of such Person as it appears on the Security Register or (ii) transfer to an account maintained by the payee located inside the United States.

Unless otherwise provided as contemplated by Section 3.01 with respect to the Securities of any Series, payment of interest, if any, may be made, in the case of a Bearer Security, by transfer to an account maintained by the payee with a bank located outside the United States.

Unless otherwise provided as contemplated by Section 3.01, every permanent Global Security will provide that interest, if any, payable on any Interest Payment Date will be paid to DTC, Euroclear and/or Clearstream, as the case may be, with respect to that portion of such permanent Global Security held for its account by Cede & Co. or the Common Depository, as the case may be, for the purpose of permitting such party to credit the interest received by it in respect of such permanent Global Security to the accounts of the beneficial owners thereof.

In case a Bearer Security of any Series is surrendered in exchange for a Registered Security of such Series after the close of business (at an office or agency in a Place of Payment for such Series) on any Regular Record Date and before the opening of business (at such office or agency) on the next succeeding Interest Payment Date, such Bearer Security shall be surrendered without the coupon relating to such Interest Payment Date and interest will not be payable on such Interest Payment Date in respect of the Registered Security issued in exchange for such Bearer Security, but will be payable only to the Holder of such coupon when due in accordance with the provisions of this Indenture.

Except as otherwise specified with respect to a Series of Securities in accordance with the provisions of Section 3.01, interest, if any, on any Registered Security of any Series that is payable, but is not punctually paid or duly provided for, on any Interest Payment Date (herein called “Defaulted Interest”) shall forthwith cease to be payable to the registered Holder thereof on the relevant Regular Record Date by virtue of having been such Holder, and such Defaulted Interest may be paid by the Company, at its election in each case, as provided in clause (1) or (2) below:

amount proposed to be paid in respect of such Defaulted Interest or shall make arrangements satisfactory to the Trustee for such deposit on or prior to the date of the proposed payment, such money when deposited to be held in trust for the benefit of the Persons entitled to such Defaulted Interest as in this clause provided. Thereupon the Trustee shall fix a Special Record Date for the payment of such Defaulted Interest which shall be not more than 15 days and not less than 10 days prior to the date of the proposed payment and not less than 10 days after the receipt by the Trustee of the notice of the proposed payment. The Trustee shall promptly notify the Company of such Special Record Date and, in the name and at the expense of the Company, shall cause notice of the proposed payment of such Defaulted Interest and the Special Record Date therefor to be mailed, first-class postage prepaid, to each Holder of Registered Securities of such Series at his address as it appears in the Security Register not less than 10 days prior to such Special Record Date. The Trustee may, in its discretion, in the name and at the expense of the Company, cause a similar notice to be published at least once in an Authorized Newspaper in each Place of Payment, but such publications shall not be a condition precedent to the establishment of such Special Record Date. Notice of the proposed payment of such Defaulted Interest and the Special Record Date therefor having been mailed as aforesaid, such Defaulted Interest shall be paid to the Persons in whose names the Registered Securities of such Series (or their respective Predecessor Securities) are registered at the close of business on such Special Record Date and shall no longer be payable pursuant to the following clause (2). In case a Bearer Security of any Series is surrendered at the office or agency in a Place of Payment for such Series in exchange for a Registered Security of such Series after the close of business at such office or agency on any Special Record Date and before the opening of business at such office or agency on the related proposed date for payment of Defaulted Interest, such Bearer Security shall be surrendered without the coupon relating to such proposed date of payment and Defaulted Interest will not be payable on such proposed date of payment in respect of the Registered Security issued in exchange for such Bearer Security, but will be payable only to the Holder of such coupon when due in accordance with the provisions of this Indenture.

(2) The Company may make payment of any Defaulted Interest on the Registered Securities of any Series in any other lawful manner not inconsistent with the requirements of any securities exchange on which such Securities may be listed, and upon such notice as may be required by such exchange, if, after notice given by the Company to the Trustee of the proposed payment pursuant to this clause, such manner of payment shall be deemed practicable by the Trustee.

Subject to the foregoing provisions of this Section and Section 3.05, each Security delivered under this Indenture upon registration of transfer of or in exchange for or in lieu of any other Security shall carry the rights to interest accrued and unpaid, and to accrue, which were carried by such other Security.

Security is registered as the owner of such Security for the purpose of receiving payment of principal of (and premium or Make-Whole Amount, if any), and (subject to Sections 3.05 and 3.07) interest, if any, on, such Registered Security and for all other purposes whatsoever, whether or not such Registered Security be overdue, and neither the Company, the Guarantor, the Trustee nor any agent of the Company, the Guarantor or the Trustee shall be affected by notice to the contrary. All such payments so made to any such Person, or upon such Person’s order, shall be valid, and, to the extent of the sum or sums so paid, effectual to satisfy and discharge the liability for money payable upon any such Security.

Title to any Bearer Security and any coupons appertaining thereto shall pass by delivery. The Company, the Guarantor, the Trustee and any agent of the Company, the Guarantor or the Trustee may treat the Holder of any Bearer Security and the Holder of any coupon as the absolute owner of such Security or coupon for the purpose of receiving payment thereof or on account thereof and for all other purposes whatsoever, whether or not such Security or coupon be overdue, and neither the Company, the Guarantor, the Trustee nor any agent of the Company, the Guarantor or the Trustee shall be affected by notice to the contrary.

No holder of any beneficial interest in any Global Security held on its behalf by a depository shall have any rights under this Indenture with respect to such Global Security and such depository (which is the Holder of such security) shall be treated by the Company, the Guarantor, the Trustee, and any agent of the Company, the Guarantor or the Trustee as the owner of such Global Security for all purposes whatsoever. None of the Company, the Guarantor, the Trustee, any Paying Agent or the Security Registrar will have any responsibility or liability for any aspect of the records relating to or payments made on account of beneficial ownership interests of a Global Security or for maintaining, supervising or reviewing any records relating to such beneficial ownership interests.

Notwithstanding the foregoing, with respect to any Global Security, nothing herein shall prevent the Company, the Guarantor, the Trustee, or any agent of the Company, the Guarantor or the Trustee, from giving effect to any written certification, proxy or other authorization furnished by any depository, as a Holder, with respect to such Global Security or impair, as between such depository and owners of beneficial interests in such Global Security, the operation of customary practices governing the exercise of the rights of such depository (or its nominee) as Holder of such Global Security.

such acquisition shall not operate as a redemption or satisfaction of the indebtedness represented by such Securities unless and until the same are surrendered to the Trustee for cancellation. No Securities shall be authenticated in lieu of or in exchange for any Securities cancelled as provided in this Section, except as expressly permitted by this Indenture. Cancelled Securities and coupons held by the Trustee shall be disposed of by the Trustee in accordance with its customary practices (subject to the record retention requirements of the Exchange Act).

SECTION 3.10. Computation of Interest. Except as otherwise specified as contemplated by Section 3.01 with respect to Securities of any Series, interest on the Securities of each Series shall be computed on the basis of a 360-day year consisting of twelve 30-day months.

SECTION 3.11. CUSIP Numbers. The Company in issuing the Securities may use “CUSIP” numbers (if then generally in use), and, if so, the Trustee shall use “CUSIP” numbers in notices of redemption as a convenience to Holders; provided, however, that any such notice may state that no representation is made as to the correctness of such numbers either as printed on the Securities or as contained in any notice of a redemption and that reliance may be placed only on the other identification numbers printed on the Securities, and any such redemption shall not be affected by any defect in or omission of such numbers. The Company will promptly notify the Trustee of any change in the “CUSIP” numbers.

ARTICLE FOUR—SATISFACTION AND DISCHARGE

SECTION 4.01. Satisfaction and Discharge of Indenture. This Indenture shall upon Company Request cease to be of further effect with respect to any Series of Securities specified in such Company Request (except as to any surviving rights of registration of transfer or exchange of Securities of such Series herein expressly provided for), and the Trustee, upon receipt of a Company Order, and at the expense of the Company, shall execute instruments in form and substance satisfactory to the Trustee and the Company acknowledging satisfaction and discharge of this Indenture as to such Series when

(1) either

(A) all Securities of such Series theretofore authenticated and delivered and all coupons, if any, appertaining thereto (other than (i) coupons appertaining to Bearer Securities surrendered for exchange for Registered Securities and maturing after such exchange, whose surrender is not required or has been waived as provided in Section 3.05, (ii) Securities and coupons of such Series which have been destroyed, lost or stolen and which have been replaced or paid as provided in Section 3.06, (iii) coupons appertaining to Securities called for redemption and maturing after the relevant Redemption Date, whose surrender has been waived as provided in Section 11.06, and (iv) Securities and coupons of such Series for whose payment money has theretofore been deposited in trust or segregated and held in trust by the Company or the Guarantor and thereafter repaid to the Company or discharged from such trust, as provided in Section 10.03) have been delivered to the Trustee for cancellation; or

(B) all Securities of such Series and, in the case of (i) or (ii) below, any coupons appertaining thereto not theretofore delivered to the Trustee for cancellation

(i) have become due and payable, or

(ii) will become due and payable at their Stated Maturity within one year, or

(iii) if redeemable at the option of the Company, are to be called for redemption within one year under arrangements satisfactory to the Trustee for the giving of notice of redemption by the Trustee in the name, and at the expense, of the Company,

and the Company or Guarantor, in the case of (i), (ii) or (iii) above, has irrevocably deposited or caused to be deposited with the Trustee as trust funds in trust for the purpose an amount in the currency or currencies, currency unit or units or composite currency or currencies in which the Securities of such Series are payable, sufficient to pay and discharge the entire indebtedness on such Securities and such coupons not theretofore delivered to the Trustee for cancellation, for principal (and premium or Make-Whole Amount, if any) and interest, if any, to the date of such deposit (in the case of Securities which have become due and payable) or to the Stated Maturity or Redemption Date, as the case may be;

(2) the Company has paid or caused to be paid all other sums payable hereunder by the Company; and

(3) the Company has delivered to the Trustee an Officers’ Certificate and an Opinion of Counsel, each stating that all conditions precedent herein provided for relating to the satisfaction and discharge of this Indenture as to such Series have been complied with.

Notwithstanding the satisfaction and discharge of this Indenture, the obligations of the Company and the Guarantor, if applicable, to the Trustee and any predecessor Trustee under Section 6.06, the obligations of the Company to any Authenticating Agent under Section 6.11 and, if money shall have been deposited with and held by the Trustee pursuant to subclause (B) of clause (1) of this Section, the obligations of the Trustee under Section 4.02 and the last paragraph of Section 10.03 shall survive such satisfaction and discharge.

Company or the Guarantor acting as its own Paying Agent) as the Trustee may determine, to the Persons entitled thereto, of the principal (and premium or Make-Whole Amount, if any), and interest, if any, for whose payment such money has been deposited with or received by the Trustee, but such money need not be segregated from other funds except to the extent required by law.

ARTICLE FIVE—REMEDIES

SECTION 5.01. Events of Default. “Event of Default,” wherever used herein with respect to any particular Series of Securities, means any one of the following events (whatever the reason for such Event of Default and whether or not it shall be voluntary or involuntary or be effected by operation of law or pursuant to any judgment, decree or order of any court or any order, rule or regulation of any administrative or governmental body):

(1) default in the payment of interest, if any, on any Security of that Series when it becomes due and payable, and continuance of such default for a period of 30 days; or

(2) default in the payment of the principal of (or premium or Make-Whole Amount, if any, on) any Security of that Series when it becomes due and payable at its Maturity; or

(3) default in the deposit of any sinking fund payment, to the extent applicable to such Series of Securities, when and as due by the terms of any Security of that Series; or

(4) default in the performance, or breach, of any covenant or warranty of the Company or the Guarantor (if any Guaranteed Securities are Outstanding) in this Indenture with respect to any Security of that Series (other than a covenant or warranty a default in whose performance or whose breach is elsewhere in this Section specifically dealt with or which has expressly been included in this Indenture solely for the benefit of Series of Securities other than that Series), and continuance of such default or breach for a period of 60 days after there has been given, by registered or certified mail, to the Company and the Guarantor by the Trustee or to the Company and the Trustee by the Holders of at least 25% in principal amount of the Outstanding Securities of that Series a written notice specifying such default or breach and requiring it to be remedied and stating that such notice is a “Notice of Default” hereunder; or

applicable grace period with respect thereto or (B) shall have resulted in such Recourse indebtedness becoming or being declared due and payable prior to its stated maturity, without, in the case of Clause (A), such Recourse indebtedness having been discharged or without, in the case of Clause (B), such Recourse indebtedness having been discharged or such acceleration having been rescinded or annulled, in each such case within a period of 10 days after there shall have been given, by registered or certified mail, to the Company by the Trustee or to the Company and the Trustee by the Holders of at least 10% in principal amount of the Outstanding Securities of that Series a written notice specifying such default and requiring the Company to cause such Recourse indebtedness to be discharged or cause such acceleration to be rescinded or annulled, as the case may be, and stating that such notice is a “Notice of Default” hereunder; provided, however, that, subject to the provisions of Sections 6.01 and 6.02, the Trustee shall not be deemed to have knowledge of such default unless either (A) a Responsible Officer of the Trustee shall have knowledge of such default or (B) the Trustee shall have received written notice thereof from the Company, from any Holder, from the holder of any such Recourse indebtedness or from the trustee under any such mortgage, indenture or other instrument; or

(6) the entry by a court having jurisdiction in the premises of (A) a decree or order for relief in respect of the Company or the Guarantor (if any Guaranteed Securities are outstanding) or any Significant Subsidiary in an involuntary case or proceeding under any applicable Federal or State bankruptcy, insolvency, reorganization or other similar law or (B) a decree or order adjudging the Company or the Guarantor (if any Guaranteed Securities are outstanding) or any Significant Subsidiary a bankrupt or insolvent, or approving as properly filed a petition seeking reorganization, arrangement, adjustment or composition of or in respect of the Company or the Guarantor (if any Guaranteed Securities are outstanding) or any Significant Subsidiary under any applicable Federal or State law, or appointing a custodian, receiver, liquidator, assignee, trustee, sequestrator or other similar official of the Company or the Guarantor (if any Guaranteed Securities are outstanding) or any Significant Subsidiary or of any substantial part of its property, or ordering the winding up or liquidation of its affairs, and the continuance of any such decree or order for relief or any such other decree or order unstayed and in effect for a period of 90 consecutive days; or

State law, or the consent by the Company or the Guarantor (if any Guaranteed Securities are outstanding) or any Significant Subsidiary to the filing of such petition or to the appointment of or taking possession by a custodian, receiver, liquidator, assignee, trustee, sequestrator or other similar official of the Company or the Guarantor (if any Guaranteed Securities are outstanding) or any Significant Subsidiary or of any substantial part of its property, or the making by the Company or the Guarantor (if any Guaranteed Securities are outstanding) or any Significant Subsidiary of an assignment for the benefit of creditors, or the admission by the Company or the Guarantor (if any Guaranteed Securities are outstanding) or any Significant Subsidiary in writing of its inability to pay its debts generally as they become due, or the taking of action by the Company or the Guarantor (if any Guaranteed Securities are outstanding) or any Significant Subsidiary in furtherance of any such action; or

(8) any other Event of Default provided with respect to Securities of that Series.

As used in this Section 5.01, the term “Bankruptcy Law” means title 11, U.S. Code or any similar Federal or state law for the relief of debtors and the term “Custodian” means any receiver, trustee, assignee, liquidator or other similar official under any Bankruptcy Law and the term “Significant Subsidiary” means any subsidiary of the Company (whether or not a Subsidiary of the Company) which is an obligor or guarantor of any Debt Instrument which is also a Company Recourse Obligation having an aggregate principal amount outstanding of at least $50,000,000.

SECTION 5.02. Acceleration of Maturity; Rescission and Annulment. If an Event of Default with respect to Securities of any Series at the time Outstanding occurs and is continuing, then and in every such case the Trustee or the Holders of not less than 25% in principal amount of the Outstanding Securities of that Series may declare the principal amount (or, if Securities of that Series are Original Issue Discount Securities or Indexed Securities, such portion of the principal as may be specified in the terms thereof) of all the Securities of that Series to be due and payable immediately, by a notice in writing to the Company or the Guarantor (if any Guaranteed Securities are outstanding) (and to the Trustee if given by the Holders), and upon any such declaration such principal or specified portion thereof shall become immediately due and payable.

At any time after such a declaration of acceleration with respect to Securities of any Series has been made and before a judgment or decree for payment of the money due has been obtained by the Trustee as hereinafter in this Article provided, the Holders of a majority in principal amount of the Outstanding Securities of that Series, by written notice to the Company, the Guarantor and the Trustee, may rescind and annul such declaration of acceleration and its consequences if:

(1) the Company or the Guarantor has paid or deposited with the Trustee a sum sufficient to pay in the currency, currency unit or composite currency in which the Securities of such Series are payable (except as otherwise specified pursuant to Section 3.01 for the Securities of such Series):

(A) all overdue installments of interest on all Outstanding Securities of that Series and any related coupons,

(B) the principal of (and premium or Make-Whole Amount, if any, on) any Outstanding Securities of that Series which have become due otherwise than by such declaration of acceleration and interest, if any, thereon at the rate or rates borne by or provided for in such Securities,

(C) to the extent that payment of such interest is lawful, interest upon overdue installments of interest at the rate or rates borne by or provided for in such Securities, and

(D) all sums paid or advanced by the Trustee hereunder and the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel; and

(2) all Events of Default with respect to Securities of that Series, other than the nonpayment of the principal of (or premium or Make-Whole Amount, if any) or interest, if any, on Securities of that Series which have become due solely by such declaration of acceleration, have been cured or waived as provided in Section 5.13.

No such rescission shall affect any subsequent default or impair any right consequent thereon.

SECTION 5.03. Collection of Indebtedness and Suits for Enforcement by Trustee. The Company covenants that if:

(1) default is made in the payment of any installment of interest on any Security of any Series and any related coupon when such interest becomes due and payable and such default continues for a period of 30 days, or

(2) default is made in the payment of the principal of (or premium or Make-Whole Amount, if any, on) any Security of any Series at its Maturity,

then the Company will, upon demand of the Trustee, pay to the Trustee, for the benefit of the Holders of such Securities of such Series and coupons, the whole amount then due and payable on such Securities and coupons for principal (and premium or Make-Whole Amount, if any) and interest, if any, with interest upon any overdue principal (and premium or Make-Whole Amount, if any) and, to the extent that payment of such interest, if any, shall be legally enforceable, upon any overdue installments of interest at the rate or rates borne by or provided for in such Securities, and, in addition thereto, such further amount as shall be sufficient to cover the costs and expenses of collection, including the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel.

and may enforce the same against the Company or any other obligor upon such Securities of such Series and collect the moneys adjudged or decreed to be payable in the manner provided by law out of the property of the Company or any other obligor upon such Securities of such Series, wherever situated.

If an Event of Default with respect to Securities of any Series occurs and is continuing, the Trustee may in its discretion proceed to protect and enforce its rights and the rights of the Holders of Securities of such Series and any related coupons by such appropriate judicial proceedings as the Trustee shall deem most effectual to protect and enforce any such rights, whether for the specific enforcement of any covenant or agreement in this Indenture or in aid of the exercise of any power granted herein, or to enforce any other proper remedy.

SECTION 5.04. Trustee May File Proofs of Claim. In case of the pendency of any receivership, insolvency, liquidation, bankruptcy, reorganization, arrangement, adjustment, composition or other judicial proceeding relative to the Company, the Guarantor (if any Guaranteed Securities are outstanding) or any other obligor upon the Securities or the property of the Company or the Guarantor or of such other obligor or their creditors, the Trustee (irrespective of whether the principal of the Securities of any Series shall then be due and payable as therein expressed or by declaration or otherwise and irrespective of whether the Trustee shall have made any demand on the Company for the payment of overdue principal, premium or Make-Whole Amount, if any, or interest, if any) shall be entitled and empowered, by intervention in such proceeding or otherwise:

(i) to file and prove a claim for the whole amount, or such lesser amount as may be provided for in the Securities of such Series, of principal (and premium or Make-Whole Amount, if any) and interest, if any, owing and unpaid in respect of the Securities and to file such other papers or documents as may be necessary or advisable in order to have the claims of the Trustee (including any claim for the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel) and of the Holders allowed in such judicial proceeding, and

(ii) to collect and receive any moneys or other property payable or deliverable on any such claims and to distribute the same;

and any custodian, receiver, assignee, trustee, liquidator, sequestrator (or other similar official) in any such judicial proceeding is hereby authorized by each Holder of Securities of such Series and coupons to make such payments to the Trustee, and in the event that the Trustee shall consent to the making of such payments directly to the Holders, to pay to the Trustee any amount due to it for the reasonable compensation, expenses, disbursements and advances of the Trustee and any predecessor Trustee, their agents and counsel, and any other amounts due the Trustee or any predecessor Trustee under Section 6.06.

Nothing herein contained shall be deemed to authorize the Trustee to authorize or consent to or accept or adopt on behalf of any Holder of a Security or coupon any plan of reorganization, arrangement, adjustment or composition affecting the Securities or coupons or the rights of any Holder thereof, or to authorize the Trustee to vote in respect of the claim of any Holder of a Security or coupon in any such proceeding.

In any proceedings brought by the Trustee (and also any proceedings involving the interpretation of any provision of this Indenture to which the Trustee shall be a party) the Trustee shall be held to represent all the Holders of the Securities, and it shall not be necessary to make any Holders of the Securities parties to any such proceedings.

SECTION 5.05. Trustee May Enforce Claims Without Possession of Securities or Coupons. All rights of action and claims under this Indenture or any of the Securities or coupons may be prosecuted and enforced by the Trustee without the possession of any of the Securities or coupons or the production thereof in any proceeding relating thereto, and any such proceeding instituted by the Trustee shall be brought in its own name as trustee of an express trust, and any recovery of judgment shall, after provision for the payment of the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, be for the ratable benefit of the Holders of the Securities and coupons in respect of which such judgment has been recovered.

SECTION 5.06. Application of Money Collected. Any money collected by the Trustee pursuant to this Article shall be applied in the following order, at the date or dates fixed by the Trustee and, in case of the distribution of such money on account of principal (or premium or Make-Whole Amount, if any) or interest, if any, upon presentation of the Securities or coupons, or both, as the case may be, and the notation thereon of the payment if only partially paid and upon surrender thereof if fully paid:

FIRST: To the payment of all amounts due the Trustee and any predecessor Trustee under Section 6.06;

SECOND: To the payment of the amounts then due and unpaid upon the Securities and coupons for principal (and premium or Make-Whole Amount, if any) and interest, if any, in respect of which or for the benefit of which such money has been collected, ratably, without preference or priority of any kind, according to the aggregate amounts due and payable on such Securities and coupons for principal (and premium or Make-Whole Amount, if any) and interest, if any, respectively; and

THIRD: To the payment of the remainder, if any, to the Company.

SECTION 5.07. Limitation on Suits. No Holder of any Security of any Series or any related coupon shall have any right to institute any proceeding, judicial or otherwise, with respect to this Indenture, or for the appointment of a receiver or trustee, or for any other remedy hereunder, unless:

(1) such Holder has previously given written notice to the Trustee of a continuing Event of Default with respect to the Securities of that Series;

(2) the Holders of not less than 25% in principal amount of the Outstanding Securities of that Series shall have made written request to the Trustee to institute proceedings in respect of such Event of Default in its own name as Trustee hereunder;

(3) such Holder or Holders have offered to the Trustee indemnity reasonably satisfactory to the Trustee against the costs, expenses and liabilities to be incurred in compliance with such request;

(4) the Trustee for 60 days after its receipt of such notice, request and offer of indemnity has failed to institute any such proceeding; and

(5) no direction inconsistent with such written request has been given to the Trustee during such 60-day period by the Holders of a majority in principal amount of the Outstanding Securities of that Series;

it being understood and intended that no one or more of such Holders shall have any right in any manner whatever by virtue of, or by availing of, any provision of this Indenture to affect, disturb or prejudice the rights of any other of such Holders, or to obtain or to seek to obtain priority or preference over any other of such Holders or to enforce any right under this Indenture, except in the manner herein provided and for the equal and ratable benefit of all such Holders.

SECTION 5.08. Unconditional Right of Holders to Receive Principal, Premium or Make-Whole Amount, if any, and Interest, if any. Notwithstanding any other provision in this Indenture, the Holder of any Security or coupon shall have the right which is absolute and unconditional to receive payment of the principal of (and premium or Make-Whole Amount, if any) and (subject to Sections 3.05 and 3.07) interest, if any, on such Security or payment of such coupon on the respective due dates expressed in such Security or coupon (or, in the case of redemption, on the Redemption Date) and to institute suit for the enforcement of any such payment, and such rights shall not be impaired without the consent of such Holder.

SECTION 5.09. Restoration of Rights and Remedies. If the Trustee or any Holder of a Security or coupon has instituted any proceeding to enforce any right or remedy under this Indenture and such proceeding has been discontinued or abandoned for any reason, or has been determined adversely to the Trustee or to such Holder, then and in every such case, the Company, the Guarantor, the Trustee and the Holders of Securities and coupons shall, subject to any determination in such proceeding, be restored severally and respectively to their former positions hereunder and thereafter all rights and remedies of the Trustee and the Holders shall continue as though no such proceeding had been instituted.

SECTION 5.10. Rights and Remedies Cumulative. Except as otherwise provided with respect to the replacement or payment of mutilated, destroyed, lost or stolen Securities or coupons in the last paragraph of Section 3.06, no right or remedy herein conferred upon or reserved to the Trustee or to the Holders of Securities or coupons is intended to be exclusive of any other right or remedy, and every right and remedy shall, to the extent permitted by law, be cumulative and in addition to every other right and remedy given hereunder or now or hereafter existing at law or in equity or otherwise. The assertion or employment of any right or remedy hereunder, or otherwise, shall not prevent the concurrent assertion or employment of any other appropriate right or remedy.

SECTION 5.11. Delay or Omission Not Waiver. No delay or omission of the Trustee or of any Holder of any Security or coupon to exercise any right or remedy accruing upon any Event of Default shall impair any such right or remedy or constitute a waiver of any such Event of Default or an acquiescence therein. Every right and remedy given by this Article or by law to the Trustee or to the Holders may be exercised from time to time, and as often as may be deemed expedient, by the Trustee or by the Holders of Securities or coupons, as the case may be.

SECTION 5.12. Control by Holders of Securities. The Holders of not less than a majority in principal amount of the Outstanding Securities of any Series shall have the right to direct the time, method and place of conducting any proceeding for any remedy available to the Trustee or exercising any trust or power conferred on the Trustee with respect to the Securities of such Series, provided that:

(1) such direction shall not be in conflict with any rule of law or with this Indenture,

(2) the Trustee may take any other action deemed proper by the Trustee which is not inconsistent with such direction, and

(3) the Trustee need not take any action which might involve it in personal liability or be unduly prejudicial to the Holders of Securities of such Series not joining therein.

Nothing in this Indenture shall impair the right of the Trustee in its discretion to take any action deemed proper by the Trustee and which is not inconsistent with such direction by Holders.

SECTION 5.13. Waiver of Past Defaults. The Holders of not less than a majority in principal amount of the Outstanding Securities of any Series may on behalf of the Holders of all the Securities of such Series and any related coupons waive any past default hereunder with respect to such Series and its consequences, except a default

(1) in the payment of the principal of (or premium or Make-Whole Amount, if any) or interest, if any, on any Security of such Series or any related coupons, or

(2) in respect of a covenant or provision hereof which under Article Nine cannot be modified or amended without the consent of the Holder of each Outstanding Security of such Series affected; or

(3) in respect of a covenant or provision hereof for the benefit or protection of the Trustee, without its express written consent.

Upon any such waiver, such default shall cease to exist, and any Event of Default arising therefrom shall be deemed to have been cured, for every purpose of this Indenture; but no such waiver shall extend to any subsequent or other default or Event of Default or impair any right consequent thereon.

SECTION 5.14. Waiver of Usury, Stay or Extension Laws. Each of the Company and the Guarantor, in respect of Guaranteed Securities covenants (to the extent that it may lawfully do so) that they will not at any time insist upon, or plead, or in any manner whatsoever claim or take the benefit or advantage of, any usury, stay or extension law wherever enacted, now or at any time hereafter in force, which may affect the covenants or the performance of this Indenture; and the Company and the Guarantor, in respect of the Guaranteed Securities (to the extent that they may lawfully do so) hereby expressly waive all benefit or advantage of any such law, and covenants that they will not hinder, delay or impede the execution of any power herein granted to the Trustee, but will suffer and permit the execution of every such power as though no such law had been enacted.

SECTION 5.15. Undertaking for Costs. All parties to this Indenture agree, and each Holder of any Security by his acceptance thereof shall be deemed to have agreed, that any court may in its discretion require, in any suit for the enforcement of any right or remedy under this Indenture, or in any suit against the Trustee for any action taken or omitted by it as Trustee, the filing by any party litigant in such suit of an undertaking to pay the costs of such suit, and that such court may in its discretion assess reasonable costs, including reasonable attorneys’ fees and expenses, against any party litigant in such suit having due regard to the merits and good faith of the claims or defenses made by such party litigant; but the provisions of this Section shall not apply to any suit instituted by the Trustee, to any suit instituted by any Holder, or group of Holders, holding in the aggregate more than 10% in principal amount of the Outstanding Securities of any Series, or to any suit instituted by any Holder for the enforcement of the payment of the principal of (or premium or Make-Whole Amount, if any) or interest, if any, on any Security on or after the respective Stated Maturities expressed in such Security (or, in the case of redemption, on or after the Redemption Date).

ARTICLE SIX—THE TRUSTEE

SECTION 6.01. Notice of Defaults. Within 90 days after the occurrence of any default hereunder with respect to the Securities of any Series, the Trustee shall transmit in the manner and to the extent provided in TIA Section 313(c), notice of such default hereunder known to the Trustee, unless such default shall have been cured or waived; provided, however, that, except in the case of a default in the payment of the principal of (or premium or Make-Whole Amount, if any) or interest, if any, on any Security of such Series, or in the payment of any sinking or purchase fund installment with respect to the Securities of such Series, the Trustee shall be protected in withholding such notice if and so long as a trust committee of directors and/or Responsible Officers of the Trustee in good faith determine that the withholding of such notice is in the interests of the Holders of the Securities and coupons of such Series; and provided further that in the case of any default or breach of the character specified in Section 5.01(4) with respect to the Securities and coupons of such Series, no such notice to Holders shall be given until at least 60 days after the occurrence thereof. For the purpose of this Section, the term “default” means any event which is, or after notice or lapse of time or both would become, an Event of Default with respect to the Securities of such Series.

SECTION 6.02. Certain Rights of Trustee. Subject to the provisions of TIA Section 315(a) through 315(d):

(1) the Trustee may conclusively rely and shall be fully protected in acting or refraining from acting upon any resolution, certificate, statement, instrument, opinion, report, notice, request, direction, consent, order, bond, debenture, note, coupon or other paper or document (whether in its original or facsimile form) reasonably believed by it to be genuine and to have been signed or presented by the proper party or parties;

(2) any request or direction of the Company or Guarantor mentioned herein shall be sufficiently evidenced by a Company Request or Company Order or Guarantor Request or Guarantor Order, as the case may be, (other than delivery of any Security, together with any coupons appertaining thereto, to the Trustee for authentication and delivery pursuant to Section 3.03 which shall be sufficiently evidenced as provided therein) and any resolution of the Board of Directors may be sufficiently evidenced by a Board Resolution or Guarantor’s Board Resolution;

(3) whenever in the administration of this Indenture the Trustee shall deem it desirable that a matter be proved or established prior to taking, suffering or omitting any action hereunder, the Trustee (unless other evidence be herein specifically prescribed) may, in the absence of bad faith on its part, rely upon an Officers’ Certificate or, if such matter pertains to the Guarantor, a Guarantor’s Officers’ Certificate;

(4) the Trustee may consult with counsel of its own selection and the advice of such counsel or any Opinion of Counsel shall be full and complete authorization and protection in respect of any action taken, suffered or omitted by it hereunder in good faith and in reliance thereon;

(5) the Trustee shall be under no obligation to exercise any of the rights or powers vested in it by this Indenture at the request or direction of any of the Holders of Securities of any Series or any related coupons pursuant to this Indenture, unless such Holders shall have offered to the Trustee security or indemnity reasonably satisfactory to the Trustee against the costs, expenses and liabilities which might be incurred by it in compliance with such request or direction;

Trustee shall determine to make such further inquiry or investigation, it shall be entitled to examine the books, records and premises of the Company and the Guarantor (if any Guaranteed Securities are outstanding) relevant to the facts or matters that are the subject of its inquiry, personally or by agent or attorney at the expense of the Company and the Guarantor (if any Guaranteed Securities are outstanding) and shall incur no liability of any kind by reason of such inquiry or investigation;

(7) the Trustee may execute any of the trusts or powers hereunder or perform any duties hereunder either directly or by or through agents or attorneys and the Trustee shall not be responsible for any misconduct or negligence on the part of any agent or attorney appointed with due care by it hereunder;

(8) the Trustee shall not be liable for any action taken, suffered or omitted by it in good faith and reasonably believed by it to be authorized or within the discretion or rights or powers conferred upon it by this Indenture;

(9) any permissive right or power available to the Trustee under this Indenture or any supplement hereto shall not be construed to be a mandatory duty or obligation;

(10) the Trustee shall not be charged with knowledge of any matter (including any default, other than as described in Section 5.01(1), (2) or (3)) unless and except to the extent actually known to a Responsible Officer of the Trustee or to the extent written notice thereof is received by the Trustee at the Corporate Trust Office;

(11) the Trustee shall have no liability for any inaccuracy in the books and records of, or for any actions or omissions of, DTC, Euroclear or Clearstream or any depository acting on behalf of any of them; and

(12) the rights, privileges, protections, immunities and benefits given to the Trustee, including, without limitation, its right to be indemnified, are extended to, and shall be enforceable by, the Trustee in each of its capacities hereunder, and each agent, custodian and other Person employed by the Trustee to act hereunder.

SECTION 6.03. Not Responsible for Recitals or Issuance of Securities. The recitals contained herein and in the Securities, except the Trustee’s certificate of authentication, and in any coupons shall be taken as the statements of the Company or the Guarantor, and neither the Trustee nor any Authenticating Agent assumes any responsibility for their correctness. The Trustee makes no representations as to the validity or sufficiency of this Indenture or of the Securities or coupons, except that the Trustee represents that it is duly authorized to execute and deliver this Indenture, authenticate the Securities and perform its obligations hereunder. Neither the Trustee nor any Authenticating Agent shall be accountable for the use or application by the Company of Securities or the proceeds thereof.

SECTION 6.04. May Hold Securities. The Trustee, any Paying Agent, Security Registrar, Authenticating Agent or any other agent of the Company or the Guarantor, in its individual or any other capacity, may become the owner or pledgee of Securities and coupons and, subject to TIA Sections 310(b) and 311, may otherwise deal with the Company or the Guarantor with the same rights it would have if it were not Trustee, Paying Agent, Security Registrar, Authenticating Agent or such other agent.

SECTION 6.05. Money Held in Trust. Money held by the Trustee in trust hereunder need not be segregated from other funds except to the extent required by law. The Trustee shall be under no liability for interest on any money received by it hereunder except as otherwise agreed with the Company or the Guarantor, as the case may be.

SECTION 6.06. Compensation and Reimbursement. The Company agrees:

(1) to pay to the Trustee from time to time reasonable compensation for all services rendered by it hereunder (which compensation shall not be limited by any provision of law in regard to the compensation of a trustee of an express trust);

(2) except as otherwise expressly provided herein, to reimburse each of the Trustee and any predecessor Trustee upon its request for all reasonable expenses, and disbursements incurred by the Trustee in accordance with any provision of this Indenture (including the reasonable compensation and the reasonable expenses and disbursements of its agents and counsel), except any such expense or disbursement as shall be determined to have been caused by its own negligence, willful misconduct or bad faith; and

(3) to indemnify each of the Trustee and any predecessor Trustee for, and to hold it harmless against, any loss, liability, claim, damage or expense incurred without negligence, willful misconduct or bad faith on its part, arising out of or in connection with the acceptance or administration of the trust or trusts hereunder, including the costs and expenses of defending itself against any claim or liability in connection with the exercise or performance of any of its powers or duties hereunder.

When the Trustee incurs expenses or renders services in connection with an Event of Default specified in Section 5.01(6) or Section 5.01(7), the expenses (including the reasonable charges and expenses of its counsel) and the compensation for the services are intended to constitute expenses of administration under any applicable Bankruptcy Law.

As security for the performance of the obligations of the Company under this Section, the Trustee shall have a lien prior to the Securities upon all property and funds held or collected by the Trustee as such, except funds held in trust for the payment of principal of (or premium or Make-Whole Amount, if any) or interest, if any, on particular Securities or any coupons.

The provisions of this Section shall survive the termination of this Indenture and resignation or removal of the Trustee.

the requirements of Federal, state, territorial or District of Columbia supervising or examining authority, then for the purposes of this Section, the combined capital and surplus of the Trustee shall be deemed to be its combined capital and surplus as set forth in its most recent report of condition so published. If at any time the Trustee shall cease to be eligible in accordance with the provisions of this Section, it shall resign immediately in the manner and with the effect hereinafter specified in this Article. Neither the Company nor any Person directly or indirectly controlling, controlled by, or under common control with the Company shall serve as Trustee.

SECTION 6.08. Resignation and Removal; Appointment of Successor.

(a) No resignation or removal of the Trustee and no appointment of a successor Trustee pursuant to this Article shall become effective until the acceptance of appointment by the successor Trustee in accordance with the applicable requirements of Section 6.09.

(b) The Trustee may resign at any time with respect to the Securities of one or more Series by giving written notice thereof to the Company. If an instrument of acceptance by a successor Trustee shall not have been delivered to the Trustee within 60 days after the giving of such notice of resignation, the resigning Trustee may petition, at the expense of the Company, any court of competent jurisdiction for the appointment of a successor Trustee.

(c) The Trustee may be removed at any time with respect to the Securities of any Series by Act of the Holders of a majority in principal amount of the Outstanding Securities of such Series delivered to the Trustee and to the Company. If an instrument of acceptance by a successor Trustee shall not have been delivered to the Trustee within 60 days after the giving of such notice of resignation, the resigning Trustee may petition, at the expense of the Company, any court of competent jurisdiction for the appointment of a successor Trustee.

(d) If at any time:

(1) the Trustee shall fail to comply with the provisions of TIA Section 310(b) after written request therefor by the Company or by any Holder of a Security who has been a bona fide Holder of a Security for at least 6 months, or

(2) the Trustee shall cease to be eligible under Section 6.07 and shall fail to resign after written request therefor by the Company or by any Holder of a Security who has been a bona fide Holder of a Security for at least 6 months, or

(3) the Trustee shall become incapable of acting or shall be adjudged a bankrupt or insolvent or a receiver of the Trustee or of its property shall be appointed or any public officer shall take charge or control of the Trustee or of its property or affairs for the purpose of rehabilitation, conservation or liquidation,

then, in any such case, (i) the Company by or pursuant to a Board Resolution may remove the Trustee and appoint a successor Trustee with respect to all Securities, or (ii) subject to TIA Section 315(e), any Holder of a Security who has been a bona fide Holder of a Security for at least 6 months may, on behalf of himself and all others similarly situated, petition any court of competent jurisdiction for the removal of the Trustee with respect to all Securities and the appointment of a successor Trustee or Trustees.

(e) If the Trustee shall resign, be removed or become incapable of acting, or if a vacancy shall occur in the office of Trustee for any cause with respect to the Securities of one or more Series, the Company, by or pursuant to a Board Resolution, shall promptly appoint a successor Trustee or Trustees with respect to the Securities of that or those Series (it being understood that any such successor Trustee may be appointed with respect to the Securities of one or more or all of such Series and that at any time there shall be only one Trustee with respect to the Securities of any particular Series). If, within one year after such resignation, removal or incapability, or the occurrence of such vacancy, a successor Trustee with respect to the Securities of any Series shall be appointed by Act of the Holders of a majority in principal amount of the Outstanding Securities of such Series delivered to the Company and the retiring Trustee, the successor Trustee so appointed shall, forthwith upon its acceptance of such appointment, become the successor Trustee with respect to the Securities of such Series and to that extent supersede the successor Trustee appointed by the Company. If no successor Trustee with respect to the Securities of any Series shall have been so appointed by the Company or the Holders of Securities and accepted appointment in the manner hereinafter provided, any Holder of a Security who has been a bona fide Holder of a Security of such Series for at least 6 months may, on behalf of himself and all others similarly situated, petition any court of competent jurisdiction for the appointment of a successor Trustee with respect to Securities of such Series.

(f) The Company shall give notice of each resignation and each removal of the Trustee with respect to the Securities of any Series and each appointment of a successor Trustee with respect to the Securities of any Series in the manner provided for notices to the Holders of Securities in Section 1.06. Each notice shall include the name of the successor Trustee with respect to the Securities of such Series and the address of its Corporate Trust Office.

SECTION 6.09. Acceptance of Appointment by Successor.

(a) In case of the appointment hereunder of a successor Trustee with respect to all Securities, every such successor Trustee so appointed shall execute, acknowledge and deliver to the Company, the Guarantor and to the retiring Trustee an instrument accepting such appointment, and thereupon the resignation or removal of the retiring Trustee shall become effective and such successor Trustee, without any further act, deed or conveyance, shall become vested with all the rights, powers, trusts and duties of the retiring Trustee; but, on request of the Company, the Guarantor or the successor Trustee, such retiring Trustee shall, upon payment of its charges, execute and deliver an instrument transferring to such successor Trustee all the rights, powers and trusts of the retiring Trustee, and shall duly assign, transfer and deliver to such successor Trustee all property and money held by such retiring Trustee hereunder, subject nevertheless to its claim, if any, provided for in Section 6.06.

each successor Trustee shall accept such appointment and which (1) shall contain such provisions as shall be necessary or desirable to transfer and confirm to, and to vest in, each successor Trustee all the rights, powers, trusts and duties of the retiring Trustee with respect to the Securities of that or those Series to which the appointment of such successor Trustee relates, (2) if the retiring Trustee is not retiring with respect to all Securities, shall contain such provisions as shall be deemed necessary or desirable to confirm that all the rights, powers, trusts and duties of the retiring Trustee with respect to the Securities of that or those Series as to which the retiring Trustee is not retiring shall continue to be vested in the retiring Trustee, and (3) shall add to or change any of the provisions of this Indenture as shall be necessary to provide for or facilitate the administration of the trusts hereunder by more than one Trustee, it being understood that nothing herein or in such supplemental indenture shall constitute such Trustees co-trustees of the same trust and that each such Trustee shall be trustee of a trust or trusts hereunder separate and apart from any trust or trusts hereunder administered by any other such Trustee; and upon the execution and delivery of such supplemental indenture the resignation or removal of the retiring Trustee shall become effective to the extent provided therein and each such successor Trustee, without any further act, deed or conveyance, shall become vested with all the rights, powers, trusts and duties of the retiring Trustee with respect to the Securities of that or those Series to which the appointment of such successor Trustee relates; but, on request of the Company, the Guarantor or any successor Trustee, such retiring Trustee shall duly assign, transfer and deliver to such successor Trustee all property and money held by such retiring Trustee hereunder with respect to the Securities of that or those Series to which the appointment of such successor Trustee relates.

(c) Upon request of any such successor Trustee, the Company and the Guarantor shall execute any and all instruments for more fully and certainly vesting in and confirming to such successor Trustee all such rights, powers and trusts referred to in paragraph (a) or (b) of this Section 6.09, as the case may be.

(d) No successor Trustee shall accept its appointment unless at the time of such acceptance such successor Trustee shall be qualified and eligible under this Article.

SECTION 6.10. Merger, Conversion, Consolidation or Succession to Business. Any corporation into which the Trustee may be merged or converted or with which it may be consolidated, or any corporation resulting from any merger, conversion or consolidation to which the Trustee shall be a party, or any corporation succeeding to all or substantially all of the corporate trust business of the Trustee, shall be the successor of the Trustee hereunder, provided such corporation shall be otherwise qualified and eligible under this Article, without the execution or filing of any paper or any further act on the part of any of the parties hereto. In case any Securities or coupons shall have been authenticated, but not delivered, by the Trustee then in office, any successor by merger, conversion or consolidation to such authenticating Trustee may adopt such authentication and deliver the Securities or coupons so authenticated with the same effect as if such successor Trustee had itself authenticated such Securities or coupons. In case any Securities or coupons shall not have been authenticated by such predecessor Trustee, any such successor Trustee may authenticate and deliver such Securities or coupons, in either its own name or that of its predecessor Trustee, with the full force and effect which this Indenture provides for the certificate of authentication of the Trustee.

SECTION 6.11. Appointment of Authenticating Agent. At any time when any of the Securities remain Outstanding, the Trustee may appoint an Authenticating Agent or Agents with respect to one or more Series of Securities which shall be authorized to act on behalf of the Trustee to authenticate Securities of such Series issued upon exchange, registration of transfer or partial redemption or repayment thereof, and Securities so authenticated shall be entitled to the benefits of this Indenture and shall be valid and obligatory for all purposes as if authenticated by the Trustee hereunder. Any such appointment shall be evidenced by an instrument in writing signed by a Responsible Officer of the Trustee, a copy of which instrument shall be promptly furnished to the Company. Wherever reference is made in this Indenture to the authentication and delivery of Securities by the Trustee or the Trustee’s certificate of authentication, such reference shall be deemed to include authentication and delivery on behalf of the Trustee by an Authenticating Agent and a certificate of authentication executed on behalf of the Trustee by an Authenticating Agent. Each Authenticating Agent shall be acceptable to the Company and shall at all times be a bank or trust company or corporation organized and doing business and in good standing under the laws of the United States of America or of any state or the District of Columbia, authorized under such laws to act as Authenticating Agent, having a combined capital and surplus of not less than $50,000,000 and subject to supervision or examination by Federal or state authorities. If such Authenticating Agent publishes reports of condition at least annually, pursuant to law or the requirements of the aforesaid supervising or examining authority, then for the purposes of this Section, the combined capital and surplus of such Authenticating Agent shall be deemed to be its combined capital and surplus as set forth in its most recent report of condition so published. In case at any time an Authenticating Agent shall cease to be eligible in accordance with the provisions of this Section, such Authenticating Agent shall resign immediately in the manner and with the effect specified in this Section.

Any corporation into which an Authenticating Agent may be merged or converted or with which it may be consolidated, or any corporation resulting from any merger, conversion or consolidation to which such Authenticating Agent shall be a party, or any corporation succeeding to the corporate agency or corporate trust business of an Authenticating Agent, shall continue to be an Authenticating Agent, provided such corporation shall be otherwise eligible under this Section, without the execution or filing of any paper or further act on the part of the Trustee or the Authenticating Agent.

An Authenticating Agent for any Series of Securities may at any time resign by giving written notice of resignation to the Trustee for such Series and to the Company. The Trustee for any Series of Securities may at any time terminate the agency of an Authenticating Agent by giving written notice of termination to such Authenticating Agent and to the Company. Upon receiving such a notice of resignation or upon such a termination, or in case at any time such Authenticating Agent shall cease to be eligible in accordance with the provisions of this Section, the Trustee for such Series may appoint a successor Authenticating Agent which shall be acceptable to the Company and shall give notice of such appointment to all Holders of Securities of the Series with respect to which such Authenticating Agent will serve in the manner set forth in Section 1.06. Any successor Authenticating Agent upon acceptance of its appointment hereunder shall become vested with all the rights, powers and duties of its predecessor hereunder, with like effect as if originally named as an Authenticating Agent herein. No successor Authenticating Agent shall be appointed unless eligible under the provisions of this Section.

The Company agrees to pay to each Authenticating Agent from time to time reasonable compensation including reimbursement of its reasonable expenses for its services under this Section, subject to Section 6.06.

If an appointment with respect to one or more Series is made pursuant to this Section, the Securities of such Series may have endorsed thereon, in addition to or in lieu of the Trustee’s certificate of authentication, an alternate certificate of authentication substantially in the following form:

“This is one of the Securities of the Series designated therein referred to in the within- mentioned Indenture.


	[ ]
	as Trustee

Dated:	By:
		as Authenticating Agent

Dated:	By:
		Authorized Officer

SECTION 6.12. Certain Duties and Responsibilities of the Trustee.

(a) With respect to the Securities of any Series, except during the continuance of an Event of Default with respect to the Securities of such Series:

(1) the Trustee undertakes to perform such duties and only such duties as are specifically set forth in this Indenture, and no implied covenants or obligations shall be read into this Indenture against the Trustee; and

(2) in the absence of bad faith on its part, the Trustee may conclusively rely, as to the truth of the statements and the correctness of the opinions expressed therein, upon certificates or opinions furnished to the Trustee and conforming to the requirements of this Indenture; but in the case of any such certificates or opinions which by any provision hereof are specifically required to be furnished to the Trustee, the Trustee shall be under a duty to examine the same to determine whether or not they conform to the requirements of this Indenture, but shall not be under any duty to verify the contents or accuracy thereof.

(b) In case an Event of Default with respect to the Securities of any Series has occurred and is continuing, the Trustee shall, with respect to Securities of such Series, exercise such of the rights and powers vested in it by this Indenture, and use the same degree of care and skill in their exercise, as a prudent man would exercise or use under the circumstances in the conduct of his own affairs.

(c) No provision of this Indenture shall be construed to relieve the Trustee from liability for its own negligent action, its own negligent failure to act, or its own willful misconduct, except that:

(1) this Subsection shall not be construed to limit the effect of Subsection (a) of this Section;

(2) the Trustee shall not be liable for any error of judgment made in good faith by a Responsible Officer, unless it shall be proved that the Trustee was negligent in ascertaining the pertinent facts;

(3) the Trustee shall not be liable with respect to any action taken or omitted to be taken by it in good faith in accordance with the direction of the Holders of a majority in principal amount of the Outstanding Securities of any Series relating to the time, method and place of conducting any proceeding for any remedy available to the Trustee, or exercising any trust or power conferred upon the Trustee, under this Indenture with respect to the Securities of such Series; and

(4) no provision of this Indenture shall require the Trustee to expend or risk its own funds or otherwise incur any financial liability in the performance of any of its duties hereunder, or in the exercise of any of its rights or powers. The Trustee shall be under no obligation to exercise any of its rights and powers under this Indenture at the request of any Holder, unless such Holder shall have offered to the Trustee security and indemnity satisfactory to it against any loss, liability or expense.

(d) Whether or not therein expressly so provided, every provision of this Indenture relating to the conduct or affecting the liability of or affording protection to the Trustee shall be subject to the provisions of this Section 6.12.

(e) The Trustee shall not be liable for interest on any money or assets held by it except to the extent the Trustee may agree in writing with the Company or the Guarantor. Assets held in trust by the Trustee need not be segregated from other assets except to the extent required by law.

ARTICLE SEVEN—HOLDERS’ LISTS AND REPORTS BY TRUSTEE, COMPANY AND GUARANTOR

SECTION 7.01. Disclosure of Names and Addresses of Holders. Every Holder of Securities or coupons, by receiving and holding the same, agrees with the Company and the Trustee that neither the Company, the Guarantor (with respect to Securities of each Series that are Guaranteed Securities) nor the Trustee nor any Authenticating Agent nor any Paying Agent nor any Security Registrar shall be held accountable by reason of the disclosure of any information as to the names and addresses of the Holders of Securities in accordance with TIA Section 312, regardless of the source from which such information was derived, and that the Trustee shall not be held accountable by reason of mailing any material pursuant to a request made under TIA Section 312(b).

SECTION 7.02. Reports by Trustee. The Trustee shall transmit to Holders such reports concerning the Trustee and its actions under this Indenture as may be required by TIA Section 313 at the times and in the manner provided by the TIA, which shall initially be not less than every twelve months commencing on [ ]. A copy of each such report shall, at the time of such transmission to Holders, be filed by the Trustee with each stock exchange, if any, upon which any Securities are listed, with the Commission and with the Company or the Guarantor. The Company will notify the Trustee when any Securities are listed on any stock exchange.

SECTION 7.03. Reports by Company and Guarantor. The Company and, if Guaranteed Securities are Outstanding, the Guarantor will:

(1) file with the Trustee, within 15 days after the Company is required to file the same with the Commission, copies of the annual reports and of the information, documents and other reports (or copies of such portions of any of the foregoing as the Commission may from time to time by rules and regulations prescribe) which the Company may be required to file with the Commission pursuant to Section 13 or Section 15(d) of the Exchange Act or, if the Company or the Guarantor are not required to file information, documents or reports pursuant to either of such Sections, then each will file with the Trustee and the Commission, in accordance with rules and regulations prescribed from time to time by the Commission, such of the supplementary and periodic information, documents and reports which may be required pursuant to Section 13 of the Exchange Act in respect of a security listed and registered on a national securities exchange as may be prescribed from time to time in such rules and regulations;

(2) file with the Trustee and the Commission, in accordance with rules and regulations prescribed from time to time by the Commission, such additional information, documents and reports with respect to compliance by the Company and the Guarantor with the conditions and covenants of this Indenture as may be required from time to time by such rules and regulations;

(3) transmit by mail to the Holders of Securities, within 30 days after the filing thereof with the Trustee, in the manner and to the extent provided in TIA Section 313(c), such summaries of any information, documents and reports required to be filed by the Company or the Guarantor pursuant to paragraphs (1) and (2) of this Section as may be required by rules and regulations prescribed from time to time by the Commission; and

(4) delivery of such reports, information and documents to the Trustee is for informational purposes only and the Trustee’s receipt of such shall not constitute constructive notice of any information contained therein or determinable from information contained therein, including the Company’s compliance with any of its covenants hereunder (as to which the Trustee is entitled to rely exclusively on Officers’ Certificates) and including the Guarantor’s compliance with any of its covenants hereunder (as to which the Trustee is entitled to rely exclusively on Guarantor’s Officers’ Certificates).

SECTION 7.04. Company to Furnish Trustee Names and Addresses of Holders. The Company and the Guarantor (with respect to Securities of each Series that are Guaranteed Securities) will furnish or cause to be furnished to the Trustee:

(a) semiannually, not later than 15 days after the Regular Record Date for interest for each Series of Securities, a list, in such form as the Trustee may reasonably require, of the names and addresses of the Holders of Registered Securities of such Series as of such Regular Record Date, or if there is no Regular Record Date for interest for such Series of Securities, semiannually, upon such dates as are set forth in the Board Resolution or indenture supplemental hereto authorizing such Series, and

(b) at such other times as the Trustee may request in writing, within 30 days after the receipt by the Company of any such request, a list of similar form and content as of a date not more than 15 days prior to the time such list is furnished,

provided, however, that, so long as the Trustee is the Security Registrar, no such list shall be required to be furnished.

ARTICLE EIGHT—CONSOLIDATION, MERGER, SALE, LEASE OR CONVEYANCE

SECTION 8.01. Consolidations and Mergers of Company and Guarantor and Sales, Leases and Conveyances Permitted Subject to Certain Conditions. The Company may consolidate with, or sell, lease or convey all or substantially all of its assets to, or merge with or into any other corporation, provided that in any such case, (1) either the Company shall be the continuing corporation, or the successor corporation shall be a corporation organized and existing under the laws of the United States, any State thereof or the District of Columbia and such successor corporation shall expressly assume the due and punctual payment of the principal of (and premium or Make-Whole Amount, if any) and interest, if any, on all of the Securities, according to their tenor, and the due and punctual performance and observance of all of the covenants and conditions of this Indenture to be performed by the Company by supplemental indenture, complying with Article Nine hereof, satisfactory to the Trustee, executed and delivered to the Trustee by such corporation and (2) immediately after giving effect to such transaction and treating any indebtedness which becomes an obligation of the Company or any Subsidiary, if applicable, as a result thereof as having been incurred by the Company or such Subsidiary at the time of such transaction, no Event of Default, and no event which, after notice or the lapse of time, or both, would become an Event of Default, shall have occurred and be continuing.

delivered to the Trustee by such partnership or corporation and (2) immediately after giving effect to such transaction and treating any indebtedness which becomes an obligation of the Guarantor, if applicable, as a result thereof as having been incurred by the Guarantor at the time of such transaction, no Event of Default, and no event which, after notice or the lapse of time, or both, would become an Event of Default, shall have occurred and be continuing.

SECTION 8.02. Rights and Duties of Successor Corporation and Partnership. In case of any such consolidation, merger, sale, lease or conveyance of the Company and upon any such assumption by the successor corporation, such successor corporation shall succeed to and be substituted for the Company, with the same effect as if it had been named herein as the party of the first part, and the predecessor corporation, except in the event of a lease, shall be relieved of any further obligation under this Indenture and the Securities. Such successor corporation thereupon may cause to be signed, and may issue either in its own name or in the name of the Company, any or all of the Securities issuable hereunder which theretofore shall not have been signed by the Company and delivered to the Trustee; and, upon the order of such successor corporation, instead of the Company, and subject to all the terms, conditions and limitations in this Indenture prescribed, the Trustee shall authenticate and shall deliver any Securities which previously shall have been signed and delivered by the officers of the Company to the Trustee for authentication, and any Securities which such successor corporation thereafter shall cause to be signed and delivered to the Trustee for that purpose. All the Securities so issued shall in all respects have the same legal rank and benefit under this Indenture as the Securities theretofore or thereafter issued in accordance with the terms of this Indenture as though all of such Securities had been issued at the date of the execution hereof.

In the event Guaranteed Securities are Outstanding, any such consolidation, merger, sale, lease or conveyance of the Guarantor and upon any such assumption by the successor partnership or corporation, such successor partnership or corporation shall succeed to and be substituted for the Guarantor, with the same effect as if it had been named herein as the party of the first part, and the predecessor partnership or corporation, except in the event of a lease, shall be relieved of any further obligation under this Indenture and the Guarantees. Such successor partnership or corporation thereupon Guarantee in its own name, any or all of the Securities issuable hereunder. All the Securities so issued shall in all respects have the same legal rank and benefit under this Indenture as the Securities theretofore or thereafter issued in accordance with the terms of this Indenture as though all of such Securities had been issued at the date of the execution hereof.

In case of any such consolidation, merger, sale, lease or conveyance, such changes in phraseology and form (but not in substance) may be made in the Securities thereafter to be issued as may be appropriate.

SECTION 8.03. Officers’ Certificate and Opinion of Counsel. Any consolidation, merger, sale, lease or conveyance permitted under Section 8.01 is also subject to the condition that the Trustee receive an Officers’ Certificate or Guarantor’s Officers’ Certificate, as applicable, and an Opinion of Counsel to the effect that any such consolidation, merger, sale, lease or conveyance, and the assumption by any successor corporation, complies with the provisions of this Article and that all conditions precedent herein provided for relating to such transaction have been complied with.

ARTICLE NINE—SUPPLEMENTAL INDENTURES

SECTION 9.01. Supplemental Indentures Without Consent of Holders. Without the consent of any Holders of Securities or coupons, the Company, when authorized by or pursuant to a Board Resolution, the Guarantor, when authorized by or pursuant to a Guarantor’s Board Resolution, and the Trustee, at any time and from time to time, may enter into one or more indentures supplemental hereto, in form satisfactory to the Trustee, for any of the following purposes:

(1) to evidence the succession of another Person to the Company or the Guarantor and the assumption by any such successor of the covenants of the Company or the Guarantor, as the case may be, contained herein and in the Securities; or

(2) to add to the covenants of the Company or the Guarantor for the benefit of the Holders of all or any Series of Securities (and if such covenants are to be for the benefit of less than all Series of Securities, stating that such covenants are expressly being included solely for the benefit of such Series) or to surrender any right or power herein conferred upon the Company or the Guarantor; or

(3) to add any additional Events of Default for the benefit of the Holders of all or any Series of Securities (and if such Events of Default are to be for the benefit of less than all Series of Securities, stating that such Events of Default are expressly being included solely for the benefit of such Series); provided, however, that in respect of any such additional Events of Default such supplemental indenture may provide for a particular period of grace after default (which period may be shorter or longer than that allowed in the case of other defaults) or may provide for an immediate enforcement upon such default or may limit the remedies available to the Trustee upon such default or may limit the right of the Holders of a majority in aggregate principal amount of that or those Series of Securities to which such additional Events of Default apply to waive such default; or

(4) to add to or change any of the provisions of this Indenture to provide that Bearer Securities may be registrable as to principal, to change or eliminate any restrictions on the payment of principal of or premium or Make-Whole Amount, if any, or interest, if any, on Bearer Securities, to permit Bearer Securities to be issued in exchange for Registered Securities, to permit Bearer Securities to be issued in exchange for Bearer Securities of other authorized denominations or to permit or facilitate the issuance of Securities in uncertificated form, provided that any such action shall not adversely affect the interests of the Holders of Securities of any Series or any related coupons in any material respect; or

(5) to change or eliminate any of the provisions of this Indenture, provided that any such change or elimination shall become effective only when there is no Security Outstanding of any Series created prior to the execution of such supplemental indenture which is entitled to the benefit of such provision; or

(6) to secure the Securities; or

(7) to establish the form or terms of Securities of any Series, the Guarantees thereof and any related coupons as permitted or contemplated by Sections 2.01 and 3.01; or

(8) to evidence and provide for the acceptance of appointment hereunder by a successor Trustee with respect to the Securities of one or more Series and to add to or change any of the provisions of this Indenture as shall be necessary to provide for or facilitate the administration of the trusts hereunder by more than one Trustee; or

(9) to add Guarantees to the Securities of any Series to which the Guarantees shall not have already been attached; or

(10) to add to, change or eliminate any of the provisions of this Indenture to such extent as shall be necessary to comply with the rules or regulations of any securities exchange or automated quotation system on which any Securities may be listed or traded; or

(11) to cure any ambiguity, to correct or supplement any provision herein which may be defective or inconsistent with any other provision herein, or to make any other provisions with respect to matters or questions arising under this Indenture which shall not be inconsistent with the provisions of this Indenture, provided such provisions shall not adversely affect the interests of the Holders of Securities of any Series or any related coupons in any material respect; or

(12) to supplement any of the provisions of this Indenture to such extent as shall be necessary to permit or facilitate the defeasance and discharge of any Series of Securities pursuant to Sections 4.01, 14.02 and 14.03; provided that any such action shall not adversely affect the interests of the Holders of Securities of such Series and any related coupons or any other Series of Securities in any material respect.

SECTION 9.02. Supplemental Indentures with Consent of Holders. With the consent of the Holders of not less than a majority in principal amount of all Outstanding Securities affected by such supplemental indenture, by Act of said Holders delivered to the Company, the Guarantor (if any Securities are Guaranteed Securities) and the Trustee, the Company, when authorized by or pursuant to a Board Resolution, the Guarantor, when authorized by or pursuant to a Guarantor’s Board Resolution, and the Trustee may enter into an indenture or indentures supplemental hereto for the purpose of adding any provisions to or changing in any manner or eliminating any of the provisions of this Indenture or of modifying in any manner the rights of the Holders of Securities and any related coupons under this Indenture; provided, however, that no such supplemental indenture shall, without the consent of the Holder of each Outstanding Security affected thereby:

be due and payable upon a declaration of acceleration of the Maturity thereof pursuant to Section 5.02 or the amount thereof provable in bankruptcy pursuant to Section 5.04, or adversely affect any right of repayment at the option of the Holder of any Security, or change any Place of Payment where, or the currency or currencies, currency unit or units or composite currency or currencies in which, any Security or any premium or Make-Whole Amount or the interest thereon is payable, or impair the right to institute suit for the enforcement of any such payment on or after the Stated Maturity thereof (or, in the case of redemption or repayment at the option of the Holder, on or after the Redemption Date or the Repayment Date, as the case may be), or

(2) reduce the percentage in principal amount of the Outstanding Securities of any Series, the consent of whose Holders is required for any such supplemental indenture, or the consent of whose Holders is required for any waiver with respect to such Series (or compliance with certain provisions of this Indenture or certain defaults hereunder and their consequences) provided for in this Indenture, or reduce the requirements of Section 15.04 for quorum or voting, or

(3) modify or affect in any manner adverse to the interests of the Holders of any Securities the terms and conditions of the obligations of the Guarantor in respect of the due and punctual payment of principal of, or any premium or interest on, or any sinking fund requirements, with respect to the Guaranteed Securities, or

(4) modify any of the provisions of this Section, Section 5.13 or Section 10.09, except to increase the required percentage to effect such action or to provide that certain other provisions of this Indenture cannot be modified or waived without the consent of the Holder of each Outstanding Security affected thereby, provided, however, that this clause shall not be deemed to require the consent of any Holder with respect to changes in the references to “the Trustee” and concomitant changes in this Section 9.02 and Section 10.09, or the deletion of this proviso, in accordance with the requirements of Sections 6.09(b) and 9.01(8).

It shall not be necessary for any Act of Holders under this Section 9.02 to approve the particular form of any proposed supplemental indenture, but it shall be sufficient if such Act shall approve the substance thereof.

A supplemental indenture which changes or eliminates any covenant or other provision of this Indenture which has expressly been included solely for the benefit of one or more particular Series of Securities, or which modifies the rights of the Holders of Securities of such Series with respect to such covenant or other provision, shall be deemed not to affect the rights under this Indenture of the Holders of Securities of any other Series.

SECTION 9.03. Execution of Supplemental Indentures. In executing, or accepting the additional trusts created by, any supplemental indenture permitted by this Article or the modification thereby of the trusts created by this Indenture, the Trustee shall be provided with, and (subject to Section 6.12) shall be fully protected in relying upon, an Opinion of Counsel stating that the execution of such supplemental indenture is authorized or permitted by this Indenture. The Trustee may, but shall not be obligated to, enter into any such supplemental indenture which affects the Trustee’s own rights, duties or immunities under this Indenture or otherwise.

SECTION 9.04. Effect of Supplemental Indentures. Upon the execution of any supplemental indenture under this Article, this Indenture shall be modified in accordance therewith, and such supplemental indenture shall form a part of this Indenture for all purposes; and every Holder of Securities theretofore or thereafter authenticated and delivered hereunder and of any coupon appertaining thereto shall be bound thereby.

SECTION 9.05. Conformity with Trust Indenture Act. Every supplemental indenture executed pursuant to this Article shall conform to the requirements of the TIA as then in effect.

SECTION 9.06. Reference in Securities to Supplemental Indentures. Securities of any Series authenticated and delivered after the execution of any supplemental indenture pursuant to this Article may, and shall, if required by the Trustee, bear a notation in form approved by the Trustee as to any matter provided for in such supplemental indenture. If the Company or the Guarantor shall so determine, new Securities of any Series so modified as to conform, in the opinion of the Trustee and the Company or the Guarantor, to any such supplemental indenture may be prepared and executed by the Company and the Guarantor, if such Securities are Guaranteed Securities, the Guarantees of the Guarantor, if applicable, may be duly endorsed thereon, and such Securities may be authenticated and delivered by the Trustee in exchange for Outstanding Securities of such Series.

ARTICLE TEN—COVENANTS

SECTION 10.01. Payment of Principal, Premium or Make-Whole Amount, if any, and Interest, if any. The Company covenants and agrees for the benefit of the Holders of each Series of Securities that it will duly and punctually pay the principal of (and premium or Make-Whole Amount, if any) and interest, if any, on the Securities of that Series in accordance with the terms of such Series of Securities, any coupons appertaining thereto and this Indenture. Unless otherwise specified as contemplated by Section 3.01 with respect to any Series of Securities, interest, if any, due on Bearer Securities on or before Maturity shall be payable only upon presentation and surrender of the several coupons for such interest installments as are evidenced thereby as they severally mature. Unless otherwise specified with respect to Securities of any Series pursuant to Section 3.01, at the option of the Company (upon written notice to the Trustee), all payments of principal may be paid by check to the registered Holder of the Registered Security or other Person entitled thereto against surrender of such Security.

as Bearer Securities, the Company will maintain: (A) in the Borough of Manhattan, The City of New York, an office or agency where any Registered Securities of that Series may be presented or surrendered for payment, where any Registered Securities of that Series may be surrendered for registration of transfer, where Securities of that Series may be surrendered for exchange, where notices and demands to or upon the Company in respect of the Securities of that Series and this Indenture may be served and where Bearer Securities of that Series and related coupons may be presented or surrendered for payment in the circumstances described in the following paragraph (and not otherwise); (B) subject to any laws or regulations applicable thereto, in a Place of Payment for that Series which is located outside the United States, an office or agency where Securities of that Series and related coupons may be presented and surrendered for payment; provided, however, that if the Securities of that Series are listed on any stock exchange located outside the United States and such stock exchange shall so require, the Company will maintain a Paying Agent for the Securities of that Series in any required city located outside the United States, as the case may be, so long as the Securities of that Series are listed on such exchange; and (C) subject to any laws or regulations applicable thereto, in a Place of Payment for that Series located outside the United States an office or agency where any Registered Securities of that Series may be surrendered for registration of transfer, where Securities of that Series may be surrendered for exchange and where notices and demands to or upon the Company in respect of the Securities of that Series and this Indenture may be served. The Company will give prompt written notice to the Trustee of the location, and any change in the location, of each such office or agency. If at any time the Company shall fail to maintain any such required office or agency or shall fail to furnish the Trustee with the address thereof, such presentations, surrenders, notices and demands may be made or served at the Corporate Trust Office of the Trustee, except that Bearer Securities of that Series and the related coupons may be presented and surrendered for payment at the offices specified in the Security, in London, England, and the Company hereby appoints the same as its agent to receive such respective presentations, surrenders, notices and demands, and the Company hereby appoints the Trustee its agent to receive all such presentations, surrenders, notices and demands.

Unless otherwise specified with respect to any Securities pursuant to Section 3.01, no payment of principal, premium or Make-Whole Amount or interest on Bearer Securities shall be made at any office or agency of the Company in the United States or by check mailed to any address in the United States or by transfer to an account maintained with a bank located in the United States; provided, however, that, if the Securities of a Series are payable in Dollars, payment of principal of and any premium or Make-Whole Amount and interest on any Bearer Security shall be made at the office of the Company’s Paying Agent in the Borough of Manhattan, The City of New York, if (but only if) payment in Dollars of the full amount of such principal, premium or Make-Whole Amount, or interest, as the case may be, at all offices or agencies outside the United States maintained for the purpose by the Company in accordance with this Indenture, is illegal or effectively precluded by exchange controls or other similar restrictions.

requirements set forth above for Securities of any Series for such purposes. The Company will give prompt written notice to the Trustee of any such designation or rescission and of any change in the location of any such other office or agency. Unless otherwise specified with respect to any Securities pursuant to Section 3.01, with respect to a Series of Securities, the Company hereby designates as a Place of Payment for each Series of Securities, each of (i) the office or agency of the Company in the Borough of Manhattan, The City of New York, and (ii) the Corporate Trust Office of the Trustee (as Paying Agent); and the Company hereby initially appoints the Trustee at its Corporate Trust Office as Paying Agent in such city; and the Company hereby initially appoints as its agent to receive all such presentations, surrenders, notices and demands each of the Trustee, at its Corporate Trust Office.

Unless otherwise specified with respect to any Securities pursuant to Section 3.01, if and so long as the Securities of any Series (i) are denominated in a Foreign Currency or (ii) may be payable in a Foreign Currency, or so long as it is required under any other provision of the Indenture, then the Company will maintain with respect to each such Series of Securities, or as so required, at least one exchange rate agent (of which it shall give written notice to the Trustee).

SECTION 10.03. Money for Securities Payments to Be Held in Trust. If the Company or the Guarantor shall at any time act as its own Paying Agent with respect to any Series of any Securities and any related coupons, it will, on or before each due date of the principal of (and premium or Make-Whole Amount, if any), or interest, if any, on any of the Securities of that Series, segregate and hold in trust for the benefit of the Persons entitled thereto a sum in the currency or currencies, currency unit or units or composite currency or currencies in which the Securities of such Series are payable (except as otherwise specified pursuant to Section 3.01 for the Securities of such Series) sufficient to pay the principal (and premium or Make-Whole Amount, if any) or interest, if any, so becoming due until such sums shall be paid to such Persons or otherwise disposed of as herein provided, and will promptly notify the Trustee of its action or failure so to act.

Whenever the Company or the Guarantor, as the case may be, shall have one or more Paying Agents for any Series of Securities and any related coupons, it will, on or before each due date of the principal of (and premium or Make-Whole Amount, if any), or interest, if any, on any Securities of that Series, deposit with a Paying Agent a sum (in the currency or currencies, currency unit or units or composite currency or currencies described in the preceding paragraph) sufficient to pay the principal (and premium or Make-Whole Amount, if any) or interest, if any, so becoming due, such sum to be held in trust for the benefit of the Persons entitled to such principal, premium or Make-Whole Amount, if any, or interest, if any, and (unless such Paying Agent is the Trustee) the Company of the Guarantor, as the case may be, will promptly notify the Trustee of its action or failure so to act.

The Company or the Guarantor, as the case may be, will cause each Paying Agent for any Series of Securities other than the Trustee to execute and deliver to the Trustee an instrument in which such Paying Agent shall agree with the Trustee, subject to the provisions of this Section, that such Paying Agent will:

(1) hold all sums held by it for the payment of principal of (and premium or Make-Whole Amount, if any) or interest, if any, on Securities in trust for the benefit of the Persons entitled thereto until such sums shall be paid to such Persons or otherwise disposed of as herein provided;

(2) give the Trustee notice of any default by the Company (or any other obligor upon the Securities) in the making of any such payment of principal (and premium or Make-Whole Amount, if any) or interest, if any, on the Securities of that Series; and

(3) at any time during the continuance of any such default upon the written request of the Trustee, forthwith pay to the Trustee all sums so held in trust by such Paying Agent.

The Company or the Guarantor, as the case may be, may at any time, for the purpose of obtaining the satisfaction and discharge of this Indenture or for any other purpose, pay, or by Company Order or Guarantor Order, as applicable, direct any Paying Agent to pay, to the Trustee all sums held in trust by the Company of the Guarantor, as the case may be, or such Paying Agent, such sums to be held by the Trustee upon the same trusts as those upon which such sums were held by the Company or the Guarantor, as the case may be, or such Paying Agent; and, upon such payment by any Paying Agent to the Trustee, such Paying Agent shall be released from all further liability with respect to such sums.

Except as otherwise provided in the Securities of any Series, and subject to applicable laws, any money deposited with the Trustee or any Paying Agent, or then held by the Company or the Guarantor, as the case may be, in trust for the payment of the principal of (and premium or Make-Whole Amount, if any) or interest, if any, on any Security of any Series and remaining unclaimed for 2 years after such principal (and premium or Make-Whole Amount, if any) or interest, if any, has become due and payable shall be paid to the Company or the Guarantor, as the case may be, upon Company Request or Guarantor Request, as applicable, or (if then held by the Company or the Guarantor, as the case may be) shall be discharged from such trust; and the Holder of such Security shall thereafter, as an unsecured general creditor, look only to the Company or the Guarantor, as the case may be, for payment of such principal of (and premium or Make-Whole Amount, if any) or interest, if any, on any Security, without interest thereon, and all liability of the Trustee or such Paying Agent with respect to such trust money, and all liability of the Company or the Guarantor, as the case may be, as trustee thereof, shall thereupon cease; provided, however, that the Trustee or such Paying Agent, before being required to make any such repayment, may at the expense of the Company or the Guarantor, as the case may be, cause to be published once, in an Authorized Newspaper, notice that such money remains unclaimed and that, after a date specified therein, which shall not be less than 30 days from the date of such publication, any unclaimed balance of such money then remaining will be repaid to the Company or the Guarantor, as the case may be.

SECTION 10.04. Existence. Subject to Article Eight, the Company will do or cause to be done all things necessary to preserve and keep in full force and effect its corporate existence, all material rights (by agreement of limited partnership and statute) and material franchises; provided, however, that the Company shall not be required to preserve any such right or franchise if the Board of Directors shall determine that the preservation thereof is no longer desirable in the conduct of the business of the Company.

SECTION 10.05. Maintenance of Properties. The Company will cause all of its material properties used or useful in the conduct of its business or the business of any Subsidiary to be maintained and kept in good condition, repair and working order, normal wear and tear, casualty and condemnation excepted, and supplied with all necessary equipment and will cause to be made all necessary repairs, renewals, replacements, betterments and improvements thereof (and the Company may take out of service for a period of time, any of its properties that have been condemned or suffered any loss due to casualty in order to make such repairs, betterments and improvements), all as in the judgment of the Company may be necessary so that the business carried on in connection therewith may be properly and advantageously conducted at all times; provided, however, that the Company and its Subsidiaries shall not be prevented from (i) removing permanently any property that has been condemned or suffered a loss due to casualty based on the Company’s reasonable judgment that such removal is in the best interest of the Company, or (ii) selling or otherwise disposing of their properties for value in the ordinary course of business.

SECTION 10.06. Insurance. The Company will cause each of its and its Subsidiaries’ insurable properties to be insured against loss or damage in an amount deemed reasonable by the Board of Directors with insurers of recognized responsibility.

SECTION 10.07. Payment of Taxes and other Claims. The Company will pay or discharge or cause to be paid or discharged, before the same shall become delinquent, (1) all taxes, assessments and governmental charges levied or imposed upon it or any Subsidiary or upon the income, profits or property of the Company or any Subsidiary, and (2) all lawful claims for labor, materials and supplies which, if unpaid, might by law become a lien upon the property of the Company or any Subsidiary; provided, however, that the Company shall not be required to pay or discharge or cause to be paid or discharged any such tax, assessment, charge or claim whose amount, applicability or validity is being contested in good faith by appropriate proceedings.

SECTION 10.08. Statement as to Compliance. The Company and the Guarantor, in the event that Guaranteed Securities are Outstanding, will deliver to the Trustee, within 120 days after the end of each fiscal year, a brief certificate from the principal executive officer, principal financial officer or principal accounting officer as to his or her knowledge of the Company’s and the Guarantor’s, as the case may be, compliance with all conditions and covenants under this Indenture and, in the event of any noncompliance, specifying such noncompliance and the nature and status thereof. For purposes of this Section 10.08, such compliance shall be determined without regard to any period of grace or requirement of notice under this Indenture.

The Company and the Guarantor, as the case may be, shall deliver to the Trustee, as soon as possible and in any event within five Business Days after a Senior Officer becomes aware of the occurrence of any Event of Default or an event which, with notice or the lapse of time or both, would constitute an Event of Default, an Officers’ Certificate and Guarantor’s Officers’ Certificate, as applicable, setting forth the details of such Event of Default or default and the action which the Company or the Guarantor proposes to take with respect thereto.

SECTION 10.09. Waiver of Certain Covenants. The Company and the Guarantor, as the case may be, may omit in any particular instance to comply with any term, provision or condition set forth in Sections 10.04 to 10.08, inclusive, if before or after the time for such compliance the Holders of at least a majority in principal amount of all outstanding Securities of such Series, by Act of such Holders, either waive such compliance in such instance or generally waive compliance with such covenant or condition, but no such waiver shall extend to or affect such covenant or condition except to the extent so expressly waived, and, until such waiver shall become effective, the obligations of the Company or the Guarantor and the duties of the Trustee in respect of any such term, provision or condition shall remain in full force and effect.

ARTICLE ELEVEN—REDEMPTION OF SECURITIES

SECTION 11.01. Applicability of Article. Securities of any Series which are redeemable before their Stated Maturity shall be redeemable in accordance with their terms and (except as otherwise specified as contemplated by Section 3.01 for Securities of any Series) in accordance with this Article.

SECTION 11.02. Election to Redeem; Notice to Trustee. The election of the Company to redeem any Securities shall be evidenced by or pursuant to a Board Resolution. In case of any redemption at the election of the Company of less than all of the Securities of any Series, the Company shall, at least 45 days prior to the giving of the notice of redemption in Section 11.04 (unless a shorter notice shall be satisfactory to the Trustee), notify the Trustee of such Redemption Date and of the principal amount of Securities of such Series to be redeemed. In the case of any redemption of Securities prior to the expiration of any restriction on such redemption provided in the terms of such Securities or elsewhere in this Indenture, the Company shall furnish the Trustee with an Officers’ Certificate evidencing compliance with such restriction.

SECTION 11.03. Selection by Trustee of Securities to Be Redeemed. If less than all the Securities of any Series issued on the same day with the same terms are to be redeemed, the particular Securities to be redeemed shall be selected not more than 60 days prior to the Redemption Date by the Trustee, from the Outstanding Securities of such Series issued on such date with the same terms not previously called for redemption, by such method as the Trustee shall deem fair and appropriate and which may provide for the selection for redemption of portions (equal to the minimum authorized denomination for Securities of that Series or any integral multiple thereof) of the principal amount of Securities of such Series of a denomination larger than the minimum authorized denomination for Securities of that Series.

The Trustee shall promptly notify the Company and the Security Registrar (if other than itself) in writing of the Securities selected for redemption and, in the case of any Securities selected for partial redemption, the principal amount thereof to be redeemed.

For all purposes of this Indenture, unless the context otherwise requires, all provisions relating to the redemption of Securities shall relate, in the case of any Security redeemed or to be redeemed only in part, to the portion of the principal amount of such Security which has been or is to be redeemed.

SECTION 11.04. Notice of Redemption. Notice of redemption shall be given in the manner provided in Section 1.06, not less than 30 days nor more than 60 days prior to the Redemption Date, unless a shorter period is specified by the terms of such Series established pursuant to Section 3.01, to each Holder of Securities to be redeemed, but failure to give such notice in the manner herein provided to the Holder of any Security designated for redemption as a whole or in part, or any defect in the notice to any such Holder, shall not affect the validity of the proceedings for the redemption of any other such Security or portion thereof.

Any notice that is mailed to the Holders of Registered Securities in the manner herein provided shall be conclusively presumed to have been duly given, whether or not the Holder receives the notice.

All notices of redemption shall state:

(1) the Redemption Date,

(2) the Redemption Price, accrued interest to the Redemption Date payable as provided in Section 11.06, if any,

(3) if less than all Outstanding Securities of any Series are to be redeemed, the identification (and, in the case of partial redemption, the principal amount) of the particular Security or Securities to be redeemed,

(4) in case any Security is to be redeemed in part only, the notice which relates to such Security shall state that on and after the Redemption Date, upon surrender of such Security, the holder will receive, without a charge, a new Security or Securities of authorized denominations for the principal amount thereof remaining unredeemed,

(5) that on the Redemption Date the Redemption Price and accrued interest to the Redemption Date payable as provided in Section 11.06, if any, will become due and payable upon each such Security, or the portion thereof, to be redeemed and, if applicable, that interest thereon shall cease to accrue on and after said date,

(6) the Place or Places of Payment where such Securities, together in the case of Bearer Securities with all coupons appertaining thereto, if any, maturing after the Redemption Date, are to be surrendered for payment of the Redemption Price and accrued interest, if any,

(7) that the redemption is for a sinking fund, if such is the case,

(8) that, unless otherwise specified in such notice, Bearer Securities of any Series, if any, surrendered for redemption must be accompanied by all coupons maturing subsequent to the date fixed for redemption or the amount of any such missing coupon or coupons will be deducted from the Redemption Price, unless security or indemnity satisfactory to the Company, the Trustee for such Series and any Paying Agent is furnished,

(9) if Bearer Securities of any Series are to be redeemed and any Registered Securities of such Series are not to be redeemed, and if such Bearer Securities may be exchanged for Registered Securities not subject to redemption on this Redemption Date pursuant to Section 3.05 or otherwise, the last date, as determined by the Company, on which such exchanges may be made, and

(10) the CUSIP number of such Security, if any.

Notice of redemption of Securities to be redeemed at the election of the Company shall be given by the Company or, at the Company’s request, by the Trustee in the name and at the expense of the Company.

SECTION 11.05. Deposit of Redemption Price. On or prior to any Redemption Date, the Company shall deposit with the Trustee or with a Paying Agent (or, if the Company is acting as its own Paying Agent, which it may not do in the case of a sinking fund payment under Article Twelve, segregate and hold in trust as provided in Section 10.03) an amount of money in the currency or currencies, currency unit or units or composite currency or currencies in which the Securities of such Series are payable (except as otherwise specified pursuant to Section 3.01 for the Securities of such Series) sufficient to pay on the Redemption Date the Redemption Price of, and (except if the Redemption Date shall be an Interest Payment Date) accrued interest on, all the Securities or portions thereof which are to be redeemed on that date.

SECTION 11.06. Securities Payable on Redemption Date. Notice of redemption having been given as aforesaid, the Securities so to be redeemed shall, on the Redemption Date, become due and payable at the Redemption Price therein specified in the currency or currencies, currency unit or units or composite currency or currencies in which the Securities of such Series are payable (except as otherwise specified pursuant to Section 3.01 for the Securities of such Series) (together with accrued interest, if any, to the Redemption Date), and from and after such date (unless the Company shall default in the payment of the Redemption Price and accrued interest, if any) such Securities shall, if the same were interest-bearing, cease to bear interest and the coupons for such interest appertaining to any Bearer Securities so to be redeemed, except to the extent provided below, shall be void. Upon surrender of any such Security for redemption in accordance with said notice, together with all coupons, if any, appertaining thereto maturing after the Redemption Date, such Security shall be paid by the Company at the Redemption Price, together with accrued interest, if any, to the Redemption Date; provided, however, that installments of interest, if any, on Bearer Securities whose Stated Maturity is on or prior to the Redemption Date shall be payable only at an office or agency located outside the United States (except as otherwise provided in Section 10.02) and, unless otherwise specified as contemplated by Section 3.01, only upon presentation and surrender of coupons for such interest; and provided further that installments of interest, if any, on Registered Securities whose Stated Maturity is on or prior to the Redemption Date shall be payable to the Holders of such Securities, or one or more Predecessor Securities, registered as such at the close of business on the relevant Record Dates according to their terms and the provisions of Section 3.07.

If any Bearer Security surrendered for redemption shall not be accompanied by all appurtenant coupons maturing after the Redemption Date, such Security may be paid after

deducting from the Redemption Price an amount equal to the face amount of all such missing coupons, or the surrender of such missing coupon or coupons may be waived by the Company and the Trustee if there be furnished to them such security or indemnity as they may require to save each of them and any Paying Agent harmless. If thereafter the Holder of such Security shall surrender to the Trustee or any Paying Agent any such missing coupon in respect of which a deduction shall have been made from the Redemption Price, such Holder shall be entitled to receive the amount so deducted; provided, however, that interest represented by coupons shall be payable only at an office or agency located outside the United States (except as otherwise provided in Section 10.02) and, unless otherwise specified as contemplated by Section 3.01, only upon presentation and surrender of those coupons.

If any Security called for redemption shall not be so paid upon surrender thereof for redemption, the principal (and premium or Make-Whole Amount, if any) shall, until paid, bear interest from the Redemption Date at the rate borne by the Security.

SECTION 11.07. Securities Redeemed in Part. Any Registered Security which is to be redeemed only in part (pursuant to the provisions of this Article or of Article Twelve) shall be surrendered at a Place of Payment therefor (with, if the Company or the Trustee so requires, due endorsement by, or a written instrument of transfer in form satisfactory to the Company and the Trustee duly executed by, the Holder thereof or his attorney duly authorized in writing) and the Company shall execute and the Trustee shall authenticate and deliver to the Holder of such Security without service charge a new Security or Securities of the same Series, of any authorized denomination as requested by such Holder in aggregate principal amount equal to and in exchange for the unredeemed portion of the principal of the Security so surrendered. If a Global Security is so surrendered, the Company shall execute and the Trustee shall authenticate and deliver to the depository, without service charge, a new Global Security in a denomination equal to and in exchange for the unredeemed portion of the principal of the Global Security so surrendered.

ARTICLE TWELVE—SINKING FUNDS

SECTION 12.01. Applicability of Article. The provisions of this Article shall be applicable to any sinking fund for the retirement of Securities of a Series except as otherwise specified as contemplated by Section 3.01 for Securities of such Series.

The minimum amount of any sinking fund payment provided for by the terms of Securities of any Series is herein referred to as a “mandatory sinking fund payment,” and any payment in excess of such minimum amount provided for by the terms of such Securities of any Series is herein referred to as an “optional sinking fund payment.” If provided for by the terms of any Securities of any Series, the cash amount of any mandatory sinking fund payment may be subject to reduction as provided in Section 12.02. Each sinking fund payment shall be applied to the redemption of Securities of any Series as provided for by the terms of Securities of such Series.

SECTION 12.02. Satisfaction of Sinking Fund Payments with Securities. The Company may, in satisfaction of all or any part of any mandatory sinking fund payment with respect to the Securities of a Series, (1) deliver Outstanding Securities of such Series (other than any previously called for redemption) together in the case of any Bearer Securities of such Series with all unmatured coupons appertaining thereto and (2) apply as a credit Securities of such Series which have been redeemed either at the election of the Company pursuant to the terms of such Securities or through the application of permitted optional sinking fund payments pursuant to the terms of such Securities, as provided for by the terms of such Securities, or which have otherwise been acquired by the Company; provided that such Securities so delivered or applied as a credit have not been previously so credited. Such Securities shall be received and credited for such purpose by the Trustee at the applicable Redemption Price specified in such Securities for redemption through operation of the sinking fund and the amount of such mandatory sinking fund payment shall be reduced accordingly.

SECTION 12.03. Redemption of Securities for Sinking Fund. Not less than 60 days prior to each sinking fund payment date for Securities of any Series, the Company will deliver to the Trustee an Officers’ Certificate specifying the amount of the next ensuing mandatory sinking fund payment for that Series pursuant to the terms of that Series, the portion thereof, if any, which is to be satisfied by payment of cash in the currency or currencies, currency unit or units or composite currency or currencies in which the Securities of such Series are payable (except as otherwise specified pursuant to Section 3.01 for the Securities of such Series) and the portion thereof, if any, which is to be satisfied by delivering and crediting Securities of that Series pursuant to Section 12.02, and the optional amount, if any, to be added in cash to the next ensuing mandatory sinking fund payment, and will also deliver to the Trustee any Securities to be so delivered and credited. If such Officers’ Certificate shall specify an optional amount to be added in cash to the next ensuing mandatory sinking fund payment, the Company shall thereupon be obligated to pay the amount therein specified. Not less than 30 days before each such sinking fund payment date the Trustee shall select the Securities to be redeemed upon such sinking fund payment date in the manner specified in Section 11.03 and cause notice of the redemption thereof to be given in the name of and at the expense of the Company in the manner provided in Section 11.04. Such notice having been duly given, the redemption of such Securities shall be made upon the terms and in the manner stated in Sections 11.06 and 11.07.

ARTICLE THIRTEEN—REPAYMENT AT THE OPTION OF HOLDERS

SECTION 13.01. Applicability of Article. Repayment of Securities of any Series before their Stated Maturity at the option of Holders thereof shall be made in accordance with the terms of such Securities, if any, and (except as otherwise specified by the terms of such Series established pursuant to Section 3.01) in accordance with this Article.

will deposit with the Trustee or with a Paying Agent (or, if the Company is acting as its own Paying Agent, segregate and hold in trust as provided in Section 10.03) an amount of money in the currency or currencies, currency unit or units or composite currency or currencies in which the Securities of such Series are payable (except as otherwise specified pursuant to Section 3.01 for the Securities of such Series) sufficient to pay the principal (or, if so provided by the terms of the Securities of any Series, a percentage of the principal) of, and (except if the Repayment Date shall be an Interest Payment Date) accrued interest on, all the Securities or portions thereof, as the case may be, to be repaid on such date.

SECTION 13.03. Exercise of Option. Securities of any Series subject to repayment at the option of the Holders thereof will contain an “Option to Elect Repayment” form on the reverse of such Securities. In order for any Security to be repaid at the option of the Holder, the Trustee must receive at the Place of Payment therefor specified in the terms of such Security (or at such other place or places of which the Company shall from time to time notify the Holders of such Securities) not earlier than 60 days nor later than 30 days prior to the Repayment Date (1) the Security so providing for such repayment together with the “Option to Elect Repayment” form on the reverse thereof duly completed by the Holder (or by the Holder’s attorney duly authorized in writing) or (2) a telegram, telex, facsimile transmission or a letter from a member of a national securities exchange, or the National Association of Securities Dealers, Inc. (“NASD”), or a commercial bank or trust company in the United States setting forth the name of the Holder of the Security, the principal amount of the Security, the principal amount of the Security to be repaid, the CUSIP number, if any, or a description of the tenor and terms of the Security, a statement that the option to elect repayment is being exercised thereby and a guarantee that the Security to be repaid, together with the duly completed form entitled “Option to Elect Repayment” on the reverse of the Security, will be received by the Trustee not later than the fifth Business Day after the date of such telegram, telex, facsimile transmission or letter; provided, however, that such telegram, telex, facsimile transmission or letter shall only be effective if such Security and form duly completed are received by the Trustee by such fifth Business Day. If less than the entire principal amount of such Security is to be repaid in accordance with the terms of such Security, the principal amount of such Security to be repaid, in increments of the minimum denomination for Securities of such Series, and the denomination or denominations of the Security or Securities to be issued to the Holder for the portion of the principal amount of such Security surrendered that is not to be repaid, must be specified. The principal amount of any Security providing for repayment at the option of the Holder thereof may not be repaid in part if, following such repayment, the unpaid principal amount of such Security would be less than the minimum authorized denomination of Securities of the Series of which such Security to be repaid is a part. Except as otherwise may be provided by the terms of any Security providing for repayment at the option of the Holder thereof, exercise of the repayment option by the Holder shall be irrevocable unless waived by the Company.

Securities on such Repayment Date) such Securities shall, if the same were interest-bearing, cease to bear interest and the coupons for such interest appertaining to any Bearer Securities so to be repaid, except to the extent provided below, shall be void. Upon surrender of any such Security for repayment in accordance with such provisions, together with all coupons, if any, appertaining thereto maturing after the Repayment Date, the principal amount of such Security so to be repaid shall be paid by the Company, together with accrued interest, if any, to the Repayment Date; provided, however, that coupons whose Stated Maturity is on or prior to the Repayment Date shall be payable only at an office or agency located outside the United States (except as otherwise provided in Section 10.02) and, unless otherwise specified pursuant to Section 3.01, only upon presentation and surrender of such coupons; and provided further that, in the case of Registered Securities, installments of interest, if any, whose Stated Maturity is on or prior to the Repayment Date shall be payable (but without interest thereon, unless the Company shall default in the payment thereof) to the Holders of such Securities, or one or more Predecessor Securities, registered as such at the close of business on the relevant Record Dates according to their terms and the provisions of Section 3.07.

If any Bearer Security surrendered for repayment shall not be accompanied by all appurtenant coupons maturing after the Repayment Date, such Security may be paid after deducting from the amount payable therefor as provided in Section 13.02 an amount equal to the face amount of all such missing coupons, or the surrender of such missing coupon or coupons may be waived by the Company and the Trustee if there be furnished to them such security or indemnity as they may require to save each of them and any Paying Agent harmless. If thereafter the Holder of such Security shall surrender to the Trustee or any Paying Agent any such missing coupon in respect of which a deduction shall have been made as provided in the preceding sentence, such Holder shall be entitled to receive the amount so deducted; provided, however, that interest, if any, represented by coupons shall be payable only at an office or agency located outside the United States (except as otherwise provided in Section 10.02) and, unless otherwise specified as contemplated by Section 3.01, only upon presentation and surrender of those coupons.

If the principal amount of any Security surrendered for repayment shall not be so repaid upon surrender thereof, such principal amount (together with interest, if any, thereon accrued to such Repayment Date) shall, until paid, bear interest from the Repayment Date at the rate of interest or Yield to Maturity (in the case of Original Issue Discount Securities) set forth in such Security.

SECTION 13.05. Securities Repaid in Part. Upon surrender of any Registered Security which is to be repaid in part only, the Company shall execute and the Trustee shall authenticate and deliver to the Holder of such Security, without service charge and at the expense of the Company, a new Registered Security or Securities of the same Series, of any authorized denomination specified by the Holder, in an aggregate principal amount equal to and in exchange for the portion of the principal of such Security so surrendered which is not to be repaid.

ARTICLE FOURTEEN—DEFEASANCE AND COVENANT DEFEASANCE

SECTION 14.01. Applicability of Article: Company’s Option to Effect Defeasance or Covenant Defeasance. If, pursuant to Section 3.01, provision is made for either or both of (a) defeasance of the Securities of or within a Series under Section 14.02 or (b) covenant defeasance of the Securities of or within a Series under Section 14.03, then the provisions of such Section or Sections, as the case may be, together with the other provisions of this Article (with such modifications thereto as may be specified pursuant to Section 3.01 with respect to any Securities), shall be applicable to such Securities and any coupons appertaining thereto, and the Company may at its option by Board Resolution, at any time, with respect to such Securities and any coupons appertaining thereto, elect to have Section 14.02 (if applicable) or Section 14.03 (if applicable) be applied to such Outstanding Securities and any coupons appertaining thereto upon compliance with the conditions set forth below in this Article.

SECTION 14.02. Defeasance and Discharge. Upon the Company’s exercise of the above option applicable to this Section with respect to any Securities of or within a Series, the Company and the Guarantor (with respect to Guaranteed Securities) shall be deemed to have been discharged from their obligations with respect to such Outstanding Securities and any coupons appertaining thereto on the date the conditions set forth in Section 14.04 are satisfied (hereinafter, “defeasance”). For this purpose, such defeasance means that the Company and the Guarantor (with respect to Guaranteed Securities) shall be deemed to have paid and discharged the entire indebtedness represented by such Outstanding Securities and any coupons appertaining thereto, which shall thereafter be deemed to be Outstanding only for the purposes of Section 14.05 and the other Sections of this Indenture referred to in clauses (A) and (B) below, and to have satisfied all of its other obligations under such Securities and any coupons appertaining thereto and this Indenture insofar as such Securities and any coupons appertaining thereto are concerned (and the Trustee, at the expense of the Company or the Guarantor, shall execute proper instruments acknowledging the same), except for the following which shall survive until otherwise terminated or discharged hereunder: (A) the rights of Holders of such Outstanding Securities and any coupons appertaining thereto to receive, solely from the trust fund described in Section 14.04 and as more fully set forth in such Section, payments in respect of the principal of (and premium or Make-Whole Amount, if any) and interest, if any, on such Securities and any coupons appertaining thereto when such payments are due, (B) the Company’s obligations with respect to such Securities and the Guarantor’s obligations with respect to Guaranteed Securities under Sections 3.05, 3.06, 10.02 and 10.03, the Company’s obligations under Section 6.06 hereof (C) the rights, powers, trusts, duties and immunities of the Trustee hereunder and (D) this Article. Subject to compliance with this Article Fourteen, the Company may exercise its option under this Section notwithstanding the prior exercise of its option under Section 14.03 with respect to such Securities and any coupons appertaining thereto.

after the date the conditions set forth in Section 14.04 are satisfied (hereinafter, “covenant defeasance”), and such Securities and any coupons appertaining thereto shall thereafter be deemed to be not Outstanding for the purposes of any direction, waiver, consent or declaration or Act of Holders (and the consequences of any thereof) in connection with Sections 10.04 to 10.09, inclusive, or such other covenant, but shall continue to be deemed Outstanding for all other purposes hereunder. For this purpose, such covenant defeasance means that, with respect to such Outstanding Securities and any coupons appertaining thereto, the Company and the Guarantor may omit to comply with and shall have no liability in respect of any term, condition or limitation set forth in any such Section or such other covenant, whether directly or indirectly, by reason of any reference elsewhere herein to any such Section or such other covenant or by reason of reference in any such Section or such other covenant to any other provision herein or in any other document and such omission to comply shall not constitute a default or an Event of Default under Section 5.01(4) to 5.01(8), inclusive, or otherwise, as the case may be, but, except as specified above, the remainder of this Indenture and such Securities and any coupons appertaining thereto shall be unaffected thereby.

SECTION 14.04. Conditions to Defeasance or Covenant Defeasance. The following shall be the conditions to application of Section 14.02 or Section 14.03 to any Outstanding Securities of or within a Series and any coupons appertaining thereto:

(a) The Company shall irrevocably have deposited or caused to be deposited with the Trustee (or another trustee satisfying the requirements of Section 6.07 who shall agree to comply with the provisions of this Article Fourteen applicable to it) as trust funds in trust for the purpose of making the following payments, specifically pledged as security for, and dedicated solely to, the benefit of the Holders of such Securities and any coupons appertaining thereto, (1) an amount in such currency, currencies or currency unit in which such Securities and any coupons appertaining thereto are then specified as payable at Stated Maturity, or (2) Government Obligations applicable to such Securities and coupons appertaining thereto (determined on the basis of the currency, currencies or currency unit in which such Securities and coupons appertaining thereto are then specified as payable at Stated Maturity) which through the scheduled payment of principal and interest, if any, in respect thereof in accordance with their terms will provide, not later than the due date of any payment of principal of (and premium or Make-Whole Amount, if any) and interest, if any, on such Securities and any coupons appertaining thereto, money in an amount, or (3) a combination thereof, in any case, in an amount, sufficient, without consideration of any reinvestment of such principal and interest, if any, in the opinion of a nationally recognized firm of independent public accountants expressed in a written certification thereof delivered to the Trustee, to pay and discharge, and which shall be applied by the Trustee (or other qualifying trustee) to pay and discharge, (i) the principal of (and premium or Make-Whole Amount, if any) and interest, if any, on such Outstanding Securities and any coupons appertaining thereto on the Stated Maturity of such principal or installment of principal or interest and (ii) any mandatory sinking fund payments or analogous payments applicable to such Outstanding Securities and any coupons appertaining thereto on the day on which such payments are due and payable in accordance with the terms of this Indenture and of such Securities and any coupons appertaining thereto.

(b) Such defeasance or covenant defeasance shall not result in a breach or violation of, or constitute a default under, this Indenture or any other material agreement or instrument to which the Company is a party or by which it is bound.

(c) No Event of Default or event which with notice or lapse of time or both would become an Event of Default with respect to such Securities and any coupons appertaining thereto shall have occurred and be continuing on the date of such deposit or, insofar as Sections 5.01(6) and 5.01(7) are concerned, at any time during the period ending on the 91st day after the date of such deposit (it being understood that this condition shall not be deemed satisfied until the expiration of such period).

(d) In the case of an election under Section 14.02, the Company shall have delivered to the Trustee an Opinion of Counsel stating that (i) the Company has received from, or there has been published by, the Internal Revenue Service a ruling, or (ii) since the date of execution of this Indenture, there has been a change in the applicable Federal income tax law, in either case to the effect that, and based thereon such opinion shall confirm that, the Holders of such Outstanding Securities and any coupons appertaining thereto will not recognize income, gain or loss for Federal income tax purposes as a result of such defeasance and will be subject to Federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such defeasance had not occurred.

(e) In the case of an election under Section 14.03, the Company shall have delivered to the Trustee an Opinion of Counsel to the effect that the Holders of such Outstanding Securities and any coupons appertaining thereto will not recognize income, gain or loss for Federal income tax purposes as a result of such covenant defeasance and will be subject to Federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such covenant defeasance had not occurred.

(f) The Company shall have delivered to the Trustee an Officers’ Certificate and an Opinion of Counsel, each stating that all conditions precedent to the defeasance under Section 14.02 or the covenant defeasance under Section 14.03 (as the case may be) have been complied with and an Opinion of Counsel to the effect that either (i) as a result of a deposit pursuant to subsection (a) above and the related exercise of the Company’s option under Section 14.02 or Section 14.03 (as the case may be), registration is not required under the Investment Company Act of 1940, as amended, by the Company, with respect to the trust funds representing such deposit or by the Trustee for such trust funds or (ii) all necessary registrations under said Act have been effected.

(g) Notwithstanding any other provisions of this Section, such defeasance or covenant defeasance shall be effected in compliance with any additional or substitute terms, conditions or limitations which may be imposed on the Company in connection therewith pursuant to Section 3.01.

(h) The payment of amounts payable to the Trustee pursuant to this Indenture shall be paid or provided for to the reasonable satisfaction of the Trustee.

SECTION 14.05. Deposited Money and Government Obligations to Be Held in Trust; Other Miscellaneous Provisions. Subject to the provisions of the last paragraph of Section 10.03, all money and Government Obligations (or other property as may be provided pursuant to Section 3.01) (including the proceeds thereof) deposited with the Trustee (or other qualifying trustee, collectively for purposes of this Section 14.05, the “Trustee”) pursuant to Section 14.04 in respect of any Outstanding Securities of any Series and any coupons appertaining thereto shall be held in trust and applied by the Trustee, in accordance with the provisions of such Securities and any coupons appertaining thereto and this Indenture, to the payment, either directly or through any Paying Agent (including the Company acting as its own Paying Agent) as the Trustee may determine, to the Holders of such Securities and any coupons appertaining thereto of all sums due and to become due thereon in respect of principal (and premium or Make-Whole Amount, if any) and interest, if any, but such money need not be segregated from other funds except to the extent required by law.

Unless otherwise specified with respect to any Security pursuant to Section 3.01, if, after a deposit referred to in Section 14.04(a) has been made, (a) the Holder of a Security in respect of which such deposit was made is entitled to, and does, elect pursuant to Section 3.01 or the terms of such Security to receive payment in a currency or currency unit other than that in which the deposit pursuant to Section 14.04(a) has been made in respect of such Security, or (b) a Conversion Event occurs in respect of the currency or currency unit in which the deposit pursuant to Section 14.04(a) has been made, the indebtedness represented by such Security and any coupons appertaining thereto shall be deemed to have been, and will be, fully discharged and satisfied through the payment of the principal of (and premium or Make-Whole Amount, if any), and interest, if any, on such Security as the same becomes due out of the proceeds yielded by converting (from time to time as specified below in the case of any such election) the amount or other property deposited in respect of such Security into the currency or currency unit in which such Security becomes payable as a result of such election or Conversion Event based on the applicable market exchange rate for such currency or currency unit in effect on the second Business Day prior to each payment date, except, with respect to a Conversion Event, for such currency or currency unit in effect (as nearly as feasible) at the time of the Conversion Event.

The Company shall pay and indemnify the Trustee against any tax, fee or other charge imposed on or assessed against the Government Obligations deposited pursuant to Section 14.04 or the principal and interest received in respect thereof other than any such tax, fee or other charge which by law is for the account of the Holders of such Outstanding Securities and any coupons appertaining thereto.

Anything in this Article to the contrary notwithstanding, subject to Section 6.06, the Trustee shall deliver or pay to the Company from time to time upon Company Request any money or Government Obligations (or other property and any proceeds therefrom) held by it as provided in Section 14.04 which, in the opinion of a nationally recognized firm of independent public accountants expressed in a written certification thereof delivered to the Trustee, are in excess of the amount thereof which would then be required to be deposited to effect a defeasance or covenant defeasance, as applicable, in accordance with this Article.

ARTICLE FIFTEEN—MEETINGS OF HOLDERS OF SECURITIES

SECTION 15.01. Purposes for Which Meetings May Be Called. A meeting of Holders of Securities of any Series may be called at any time and from time to time pursuant to this Article to make, give or take any request, demand, authorization, direction, notice, consent, waiver or other action provided by this Indenture to be made, given or taken by Holders of Securities of such Series.

SECTION 15.02. Call, Notice and Place of Meetings.

(a) The Trustee may at any time call a meeting of Holders of Securities of any Series for any purpose specified in Section 15.01, to be held at such time and at such place as the Trustee shall determine. Notice of every meeting of Holders of Securities of any Series, setting forth the time and the place of such meeting and in general terms the action proposed to be taken at such meeting, shall be given, in the manner provided in Section 1.06, not less than 20 nor more than 180 days prior to the date fixed for the meeting.

(b) In case at any time the Company, pursuant to a Board Resolution, or the Holders of at least 25% in principal amount of the Outstanding Securities of any Series shall have requested the Trustee to call a meeting of the Holders of Securities of such Series for any purpose specified in Section 15.01, by written request setting forth in reasonable detail the action proposed to be taken at the meeting, and the Trustee shall not have made the first publication of the notice of such meeting within 20 days after receipt of such request or shall not thereafter proceed to cause the meeting to be held as provided herein, then the Company or the Holders of Securities of such Series in the amount above specified, as the case may be, may determine the time and the place for such meeting and may call such meeting for such purposes by giving notice thereof as provided in subsection (a) of this Section.

SECTION 15.03. Persons Entitled to Vote at Meetings. To be entitled to vote at any meeting of Holders of Securities of any Series, a Person shall be (1) a Holder of one or more Outstanding Securities of such Series, or (2) a Person appointed by an instrument in writing as proxy for a Holder or Holders of one or more Outstanding Securities of such Series by such Holder or Holders. The only Persons who shall be entitled to be present or to speak at any meeting of Holders of Securities of any Series shall be the Persons entitled to vote at such meeting and their counsel, any representatives of the Trustee and its counsel and any representatives of the Company and its counsel.

any other case the meeting may be adjourned for a period of not less than 10 days as determined by the chairman of the meeting prior to the adjournment of such meeting. In the absence of a quorum at the reconvening of any such adjourned meeting, such adjourned meeting may be further adjourned for a period of not less than 10 days; at the reconvening of any meeting adjourned or further adjourned for lack of a quorum, the Persons entitled to vote 25% in aggregate principal amount of the then Outstanding Securities shall constitute a quorum for the taking of any action set forth in the notice of the original meeting. Notice of the reconvening of any adjourned meeting shall be given as provided in Section 15.02(a), except that such notice need be given only once not less than 5 days prior to the date on which the meeting is scheduled to be reconvened.

Except as limited by the proviso to Section 9.02, any resolution presented to a meeting or adjourned meeting duly reconvened at which a quorum is present as aforesaid may be adopted by the affirmative vote of the Persons entitled to vote a majority in aggregate principal amount of the Outstanding Securities represented at such meeting; provided, however, that, except as limited by the proviso to Section 9.02, any resolution with respect to any request, demand, authorization, direction, notice, consent, waiver or other action which this Indenture expressly provides may be made, given or taken by the Holders of a specified percentage, which is less than a majority, in principal amount of the Outstanding Securities of a Series may be adopted at a meeting or an adjourned meeting duly reconvened and at which a quorum is present as aforesaid by the affirmative vote of the Holders of such specified percentage in principal amount of the Outstanding Securities of that Series.

Any resolution passed or decision taken at any meeting of Holders of Securities of any Series duly held in accordance with this Section shall be binding on all the Holders of Securities of such Series and the related coupons, whether or not present or represented at the meeting.

Notwithstanding the foregoing provisions of this Section 15.04, if any action is to be taken at a meeting of Holders of Securities of any Series with respect to any request, demand, authorization, direction, notice, consent, waiver or other action that this Indenture expressly provides may be made, given or taken by the Holders of a specified percentage in principal amount of all Outstanding Securities affected thereby, or of the Holders of such Series and one or more additional Series:

(i) there shall be no minimum quorum requirement for such meeting; and

(ii) the principal amount of the Outstanding Securities of such Series that vote in favor of such request, demand, authorization, direction, notice, consent, waiver or other action shall be taken into account in determining whether such request, demand, authorization, direction, notice, consent, waiver or other action has been made, given or taken under this Indenture.

SECTION 15.05. Determination of Voting Rights; Conduct and Adjournment of Meetings.

(a) Notwithstanding any provisions of this Indenture, the Trustee may make such reasonable regulations as it may deem advisable for any meeting of Holders of Securities of a Series in regard to proof of the holding of Securities of such Series and of the appointment of proxies and in regard to the appointment and duties of inspectors of votes, the submission and examination of proxies, certificates and other evidence of the right to vote, and such other matters concerning the conduct of the meeting as it shall deem appropriate. Except as otherwise permitted or required by any such regulations, the holding of Securities shall be proved in the manner specified in Section 1.04 and the appointment of any proxy shall be proved in the manner specified in Section 1.04 or by having the signature of the Person executing the proxy witnessed or guaranteed by any trust company, bank or banker authorized by Section 1.04 to certify to the holding of Bearer Securities. Such regulations may provide that written instruments appointing proxies, regular on their face, may be presumed valid and genuine without the proof specified in Section 1.04 or other proof.

(b) The Trustee shall, by an instrument in writing appoint a temporary chairman of the meeting, unless the meeting shall have been called by the Company or by Holders of Securities as provided in Section 15.02(b), in which case the Company or the Holders of Securities of the Series calling the meeting, as the case may be, shall in like manner appoint a temporary chairman. A permanent chairman and a permanent secretary of the meeting shall be elected by vote of the Persons entitled to vote a majority in principal amount of the Outstanding Securities of such Series represented at the meeting.

(c) At any meeting each Holder of a Security of such Series or proxy shall be entitled to one vote for each $1,000 principal amount of the Outstanding Securities of such Series held or represented by him; provided, however, that no vote shall be cast or counted at any meeting in respect of any Security challenged as not Outstanding and ruled by the chairman of the meeting to be not Outstanding. The chairman of the meeting shall have no right to vote, except as a Holder of a Security of such Series or proxy.

(d) Any meeting of Holders of Securities of any Series duly called pursuant to Section 15.02 at which a quorum is present may be adjourned from time to time by Persons entitled to vote a majority in principal amount of the Outstanding Securities of such Series represented at the meeting, and the meeting may be held as so adjourned without further notice.

reports of the inspectors of votes on any vote by ballot taken thereat and affidavits by one or more persons having knowledge of the fact, setting forth a copy of the notice of the meeting and showing that said notice was given as provided in Section 15.02 and, if applicable, Section 15.04. Each copy shall be signed and verified by the affidavits of the permanent chairman and secretary of the meeting and one such copy shall be delivered to the Company and another to the Trustee to be preserved by the Trustee, the latter to have attached thereto the ballots voted at the meeting. Any record so signed and verified shall be conclusive evidence of the matters therein stated.

ARTICLE SIXTEEN—GUARANTEE.

SECTION 16.01. The Guarantee. The Guarantee set forth in this Article Sixteen shall only be in effect with respect to Securities of a Series to the extent such Guarantee is made applicable to such Series in accordance with Section 3.01. The Guarantor hereby unconditionally guarantees to each Holder of a Guaranteed Security authenticated and delivered by the Trustee the due and punctual payment of the principal of, any premium and interest on, such Guaranteed Security, whether at Stated Maturity, by acceleration, redemption, repayment or otherwise, in accordance with the terms of such Guaranteed Security and this Indenture. In case of the failure of the Company punctually to pay any such principal, premium, interest or any additional amounts, the Guarantor hereby agrees to cause any such payment to be made punctually when and as the same shall become due and payable, whether at Stated Maturity, upon acceleration, redemption, repayment or otherwise, and as if such payment were made by the Company.

The Guarantor hereby agrees that its obligations hereunder shall be as principal and not merely as surety, and shall be absolute, irrevocable and unconditional, irrespective of, and shall be unaffected by, any invalidity, irregularity or unenforceability of any Guaranteed Security or this Indenture, any failure to enforce the provisions of any Guaranteed Security or this Indenture, or any waiver, modification, consent or indulgence granted with respect thereto by the Holder of such Guaranteed Security or the Trustee, the recovery of any judgment against the Company or any action to enforce the same, or any other circumstances which may otherwise constitute a legal or equitable discharge of a surety or guarantor; provided, however, that, notwithstanding the foregoing, no such waiver, modification or indulgence shall, without the consent of the Guarantor, increase the principal amount of such Security or the interest rate thereon or impose or increase any premium payable upon redemption thereof. The Guarantor hereby waives diligence, presentment, demand of payment, filing of claims with a court in the event of merger, insolvency or bankruptcy of the Company, any right to require a proceeding first against the Company, protest or notice with respect to any such Guaranteed Security or the Indebtedness evidenced thereby and all demands whatsoever, and covenants that this Guarantee will not be discharged except by payment in full of the principal of, any premium and interest on, and any additional amounts required with respect to, the Guaranteed Securities and the complete performance of all other payment obligations contained in the Guaranteed Securities.

This Guarantee shall continue to be effective or be reinstated, as the case may be, if at any time payment on any Guaranteed Security, in whole or in part, is rescinded or must otherwise be repaid to the Company or the Guarantor upon the bankruptcy, liquidation or reorganization of the Company, the Guarantor or otherwise.

The Guarantor shall be subrogated to all rights of the Holder of any Guaranteed Security against the Company in respect of any amounts paid to such Holder by the Guarantor pursuant to the provisions of this Guarantee; provided, however, that the Guarantor shall not be entitled to enforce, or to receive any payments arising out of or based upon, such right of subrogation until the principal of, any premium and interest on, and any additional amounts required with respect to, all Guaranteed Securities shall have been paid in full.

This instrument may be executed in any number of counterparts, each of which so executed shall be deemed an original, but all such counterparts shall together constitute but one and the same instrument.

[Signatures follow on Next Page]

SIGNATURES

IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be duly executed all as of the day and year first above written.


BOSTON PROPERTIES, INC.

By:
Name:
Title:

BOSTON PROPERTIES LIMITED PARTNERSHIP

By:		Boston Properties, Inc., its general partner

By:
Name:
Title:

THE BANK OF NEW YORK TRUST COMPANY, N.A., as Trustee

By:
Name:
Title:

EXHIBIT A

FORM OF REDEEMABLE OR NON-REDEEMABLE SENIOR SECURITY

[Face of Security]

[If the Holder of this Security (as indicated below) is The Depository Trust Company (“DTC”) or a nominee of DTC, this Security is a Global Security and the following two legends apply:

Unless this Security is presented by an authorized representative of The Depository Trust Company a New York corporation (“DTC”) to the Company or its agent for registration of transfer, exchange or payment, and such Security issued is registered in the name of Cede & Co., or in such other name as requested by an authorized representative of DTC (and any payment is made to Cede & Co. or to such other entity as is requested by an authorized representative of DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL, inasmuch as the registered owner hereof, Cede & Co., has an interest herein.

Unless and until this Security is exchanged in whole or in part for Securities in certificated form, this Security may not be transferred except as a whole by DTC to a nominee thereof or by a nominee thereof to DTC or another nominee of DTC or by DTC or any such nominee to a successor of DTC or a nominee of such successor.]

[If this Security is an Original Issue Discount Security, insert — FOR PURPOSES OF SECTION 1273 and 1275 OF THE UNITED STATES INTERNAL REVENUE CODE, THE AMOUNT OF ORIGINAL ISSUE DISCOUNT ON THIS SECURITY IS % OF ITS PRINCIPAL AMOUNT, THE ISSUE DATE IS , 20 [AND] THE YIELD TO MATURITY IS %. [THE METHOD USED TO DETERMINE THE AMOUNT OF ORIGINAL ISSUE DISCOUNT APPLICABLE TO THE SHORT ACCRUAL PERIOD OF , 20 TO , 20 , IS % OF THE PRINCIPAL AMOUNT OF THIS SECURITY.]

BOSTON PROPERTIES, INC.

[Designation of Series]


No.		$

CUSIP No.

BOSTON PROPERTIES, INC., a Delaware limited partnership (herein referred to as the “Company,” which term includes any successor corporation under the Indenture referred to on the reverse hereof), for value received, hereby promises to pay to or registered assigns the principal sum of Dollars on _____________________ (the “Stated Maturity Date”) [or insert date fixed for earlier redemption (the “Redemption Date,” and together with the Stated Maturity Date with respect to principal repayable on such date, the “Maturity Date.”)]

[If the Security is to bear interest prior to Maturity, insert — and to pay interest thereon from ______________ or from the most recent Interest Payment Date to which interest has been paid

A-1

or duly provided for, semi-annually on and in each year (each, an “Interest Payment Date”), commencing , at the rate of % per annum, until the principal hereof is paid or duly provided for. The interest so payable, and punctually paid or duly provided for, on any Interest Payment Date will, as provided in such Indenture, be paid to the Holder in whose name this Security (or one or more Predecessor Securities) is registered at the close of business on the Regular Record Date for such interest, which shall be the or (whether or not a Business Day), as the case may be, next preceding such Interest Payment Date [at the office or agency of the Company maintained for such purpose; provided, however, that such interest may be paid, at the Company’s option, by mailing a check to such Holder at its registered address or by transfer of funds to an account maintained by such Holder within the United States]. Any such interest not so punctually paid or duly provided for shall forthwith cease to be payable to the Holder on such Regular Record Date, and may be paid to the Holder in whose name this Security (or one or more Predecessor Securities) is registered at the close of business on a Special Record Date for the payment of such Defaulted Interest to be fixed by the Trustee, notice whereof shall be given to Holders of Securities of this Series not less than 10 days prior to such Special Record Date, or may be paid at any time in any other lawful manner not inconsistent with the requirements of any securities exchange on which the Securities of this Series may be listed, and upon such notice as may be required by such exchange, all as more fully provided in the Indenture. Interest will be computed on the basis of a 360-day year of twelve 30-day months.]

[If the Security is not to bear interest prior to Maturity, insert — The principal of this Security shall not bear interest except in the case of a default in payment of principal upon acceleration, upon redemption or at the [Stated] Maturity Date and in such case the overdue principal of this Security shall bear interest at the rate of % per annum (to the extent that the payment of such interest shall be legally enforceable), which shall accrue from the date of such default in payment to the date payment of such principal has been made or duly provided for. Interest on any overdue principal shall be payable on demand. Any such interest on any overdue principal that is not so paid on demand shall bear interest at the rate of % per annum (to the extent that the payment of such interest shall be legally enforceable), which shall accrue from the date of such demand for payment to the date payment of such interest has been made or duly provided for, and such interest shall also be payable on demand.]

[If applicable, insert – This Security is a Guaranteed Security within the meaning of the Indenture.]

The principal of this Security payable on the Stated Maturity Date [or the principal of, premium or Make-Whole Amount, if any, and, if the Redemption Date is not an Interest Payment Date, interest on this Security payable on the Redemption Date] will be paid against presentation of this Security at the office or agency of the Company maintained for that purpose in , in such coin or currency of the United States of America as at the time of payment is legal tender for the payment of public and private debts.

A-2

excluding such Interest Payment Date or the [Stated] Maturity Date [or Redemption Date, as the case may be.] If any Interest Payment Date or the [Stated] Maturity Date or [Redemption Date] falls on a day that is not a Business Day, as defined below, principal, premium or Make-Whole Amount, if any, and/or interest payable with respect to such Interest Payment Date or [Stated] Maturity Date [or Redemption Date, as the case may be,] will be paid on the next succeeding Business Day with the same force and effect as if it were paid on the date such payment was due, and no interest shall accrue on the amount so payable for the period from and after such Interest Payment Date or [Stated] Maturity Date [or Redemption Date, as the case may be.] “Business Day” means any day, other than a Saturday or Sunday, that is neither a legal holiday nor a day on which banking institutions in The City of New York are required or authorized by law, regulation or executive order to close.

[If this Security is a Global Security, insert — All payments of principal, premium or Make-Whole Amount, if any, and interest in respect of this Security will be made by the Company in immediately available funds.]

Reference is hereby made to the further provisions of this Security set forth on the reverse hereof, which further provisions shall for all purposes have the same effect as if set forth at this place.

Unless the Certificate of Authentication hereon has been executed by the Trustee by manual signature of one of its authorized signatories, this Security shall not be entitled to any benefit under the Indenture, or be valid or obligatory for any purpose.

IN WITNESS WHEREOF, [if applicable, insert – each of] the Company [if applicable insert – and the Guarantor have] [has] caused this instrument to be duly executed under its facsimile seal.


Dated:

						BOSTON PROPERTIES, INC.

						By:
						Name:
						Title:

Attest:


Secretary

A-3

[Reverse of Security]

BOSTON PROPERTIES, INC.

This Security is one of a duly authorized issue of securities of the Company (herein called the “Securities”), issued and to be issued in one or more Series under an Indenture, dated as of , [ ] (herein called the “Indenture”) among the Company, Boston Properties Limited Partnership, as Guarantor (herein called the “Guarantor,” which term includes any successor guarantor under the Indenture) in respect of any Guaranteed Securities, and , as Trustee (herein called the “Trustee,” which term includes any successor trustee under the Indenture with respect to the Series of which this Security is a part), to which Indenture and all indentures supplemental thereto reference is hereby made for a statement of the respective rights, limitations of rights, duties and immunities thereunder of the Company, the Guarantor, the Trustee and the Holders of the Securities, and of the terms upon which the Securities are, and are to be, authenticated and delivered. This Security is one of the duly authorized Series of Securities designated on the face hereof (collectively, the “Securities”), [if applicable, insert — and the aggregate principal amount of the Securities to be issued under such Series is limited to $ (except for Securities authenticated and delivered upon transfer of, or in exchange for, or in lieu of other Securities).] All terms used in this Security which are defined in the Indenture shall have the meanings assigned to them in the Indenture.

If an Event of Default, as defined in the Indenture, shall occur and be continuing, the principal of the Securities of this Series may be declared due and payable in the manner and with the effect provided in the Indenture.

[If applicable, insert — The Securities may not be redeemed prior to the Stated Maturity Date.]

[If applicable, insert — The Securities are subject to redemption [ (l) (If applicable, insert — on in any year commencing with the year and ending with the year through operation of the sinking fund for this Series at a Redemption Price equal to 100% of the principal amount, and (2) ] [If applicable, insert — at any time [on or after ], as a whole or in part, at the election of the Company, at the following Redemption Prices (expressed as percentages of the principal amount):

If redeemed on or before , % and if redeemed during the 12-month period beginning of the years indicated at the Redemption Prices indicated below.


Year	Redemption Price	Year	Redemption Price

and thereafter at a Redemption Price equal to __% of the principal amount, together in the case of any such redemption [If applicable, insert — (whether through operation of the sinking fund or otherwise)] with accrued interest to the Redemption Date; provided, however, that installments of interest on this Security whose Stated Maturity is on or prior to such Redemption Date will be payable to the Holder of this Security, or one or more Predecessor Securities, of record at the close of business on the relevant Record Dates referred to on the face hereof, all as provided in the Indenture.]

A-4

[If applicable, insert — The Securities are subject to redemption (1) on in any year commencing with the year and ending with the year through operation of the sinking fund for this Series at the Redemption Prices for redemption through operation of the sinking fund (expressed as percentages of the principal amount) set forth in the table below, and (2) at any time [on or after ], as a whole or in part, at the election of the Company, at the Redemption Prices for redemption otherwise than through operation of the sinking fund (expressed as percentages of the principal amount) set forth in the table below: If redeemed during the 12-month period beginning of the years indicated,

Year

Redemption Price for

Redemption Through

Operation of the Sinking Fund

Redemption Price for

Redemption Otherwise Than

Through Operation of the

Sinking Fund

and thereafter at a Redemption Price equal to % of the principal amount, together in the case of any such redemption (whether through operation of the sinking fund or otherwise) with accrued interest to the Redemption Date; provided, however, that installments of interest on this Security whose Stated Maturity is on or prior to such Redemption Date will be payable to the Holder of this Security, or one or more Predecessor Securities, of record at the close of business on the relevant Record Dates referred to on the face hereof, all as provided in the Indenture.]

[If applicable, insert — Notwithstanding the foregoing, the Company may not, prior to , redeem any Securities as contemplated by [Clause (2) of] the preceding paragraph as a part of, or in anticipation of, any refunding operation by the application, directly or indirectly, of moneys borrowed having an interest cost to the Company (calculated in accordance with generally accepted financial practice) of less than % per annum.]

[If applicable, insert — The sinking fund for the Securities provides for the redemption on in each year, beginning with the year and ending with the year , of [not less than] $ ] [(“mandatory sinking fund”) and not more than $ ] aggregate principal amount of the Securities. [The Securities acquired or redeemed by the Company otherwise than through [mandatory] sinking fund payments may be credited against subsequent [mandatory] sinking fund payments otherwise required to be made in the [describe order] order in which they become due.]]

Notice of redemption will be given by mail to Holders of Securities, not less than 30 nor more than 60 days prior to the Redemption Date, all as provided in the Indenture.

In the event of redemption of this Security in part only, a new Security or Securities for the unredeemed portion hereof shall be issued in the name of the Holder hereof upon the cancellation hereof.

A-5

The Indenture permits, with certain exceptions as therein provided, the amendment thereof and the modification of the rights and obligations of the Company, the Guarantor and the rights of the Holders of the Securities under the Indenture at any time by the Company, the Guarantor and the Trustee with the consent of the Holders of not less than a majority of the aggregate principal amount of all Securities issued under the Indenture at the time Outstanding and affected thereby. The Indenture also contains provisions permitting the Holders of not less than a majority of the aggregate principal amount of the Outstanding Securities, on behalf of the Holders of all such Securities, to waive compliance by the Company or the Guarantor, as the case may be, with certain provisions of the Indenture. Furthermore, provisions in the Indenture permit the Holders of not less than a majority of the aggregate principal amount, in certain instances, of the Outstanding Securities of any Series to waive, on behalf of all of the Holders of Securities of such Series, certain past defaults under the Indenture and their consequences. Any such consent or waiver by the Holder of this Security shall be conclusive and binding upon such Holder and upon all future Holders of this Security and other Securities issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof, whether or not notation of such consent or waiver is made upon this Security.

No reference herein to the Indenture and no provision of this Security or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of (and premium or Make-Whole Amount, if any) and interest on this Security at the times, places and rate, and in the coin or currency, herein prescribed.

As provided in the Indenture and subject to certain limitations therein [and herein] set forth, the transfer of this Security is registrable in the Security Register of the Company upon surrender of this Security for registration of transfer at the office or agency of the Company in any place where the principal of (and premium or Make-Whole Amount, if any) and interest on this Security are payable, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Company and the Security Registrar duly executed by, the Holder hereof or by his attorney duly authorized in writing, and thereupon one or more new Securities, of authorized denominations and for the same aggregate principal amount, will be issued to the designated transferee or transferees.

As provided in the Indenture and subject to certain limitations therein [and herein] set forth, this Security is exchangeable for a like aggregate principal amount of Securities of different authorized denominations but otherwise having the same terms and conditions, as requested by the Holder hereof surrendering the same.

The Securities of this Series are issuable only in registered form [without coupons] in denominations of $_______ and any integral multiple thereof.

No service charge shall be made for any such registration of transfer or exchange, but the Company may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith.

Prior to due presentment of this Security for registration of transfer, the Company, the Trustee and any agent of the Company or the Trustee may treat the Person in whose name this Security is registered as the owner hereof for all purposes, whether or not this Security be overdue, and neither the Company, the Trustee nor any such agent shall be affected by notice to the contrary.

A-6

[As applicable, insert – This Security is [not] a Guaranteed Security within the meaning of, and [is not] subject to the provisions applicable to Boston Properties Limited Partnership, as Guarantor [thereof] contained in, the Indenture. [Reference is made to Article Sixteen of the Indenture and to the Guarantee endorsed on this Security for a statement of the respective rights, duties and obligations thereunder of the Guarantor, the Trustee and the Holders.]]

No Holder shall have any recourse under or upon any obligation, covenant or agreement contained in the Indenture, or any indenture supplemental thereto, or this Security, or because of any indebtedness evidenced thereby, including the payment of the principal of or premium or Make-Whole Amount, if any, or the interest on this Security, or for any claim based hereon, or otherwise in respect hereof, against any past, present or future stockholder, employee, officer, director or agent, as such, of the Company or any successor, either directly or through the Company or any successor, under any rule of law, statute or constitutional provision or by the enforcement of any assessment or by any legal or equitable proceeding or otherwise. Each Holder hereof, by the acceptance hereof and as part of the consideration for the issue hereof, expressly waives and releases all such liability by accepting this Security. The waiver and release are part of the consideration for the issue of the Security.

The Indenture and the Securities shall be governed by and construed in accordance with the laws of the State of New York applicable to agreements made and to be performed entirely in such State.

A-7

EXHIBIT B

FORM OF GUARANTEE

For value received, the undersigned hereby fully and unconditionally guarantees to the Holder of this Security the cash payments in United States dollars of principal of and interest on this Security in the amounts and at the time when due and interest on the overdue principal and interest, if any, on this Security, if lawful, and the payment of all other obligations of the Company under the Indenture or the Security, to the Holder of this Security and the Trustee, all in accordance with and subject to the terms and limitations of this Security, Article Sixteen of the Indenture and this Guarantee. This Guarantee will become effective in accordance with Article Sixteen of the Indenture and its terms shall be evidenced therein. The validity and enforceability of any Guarantee shall not be affected by the fact that it is not affixed to any particular Security. Capitalized terms used but not defined herein shall have the meanings ascribed to them in the Indenture, dated as of , , by and among Boston Properties, Inc., the undersigned and The Bank of New York Trust Company, N.A., as Trustee, as amended or supplemented (the “Indenture”).

The obligations of the undersigned to the Holders of this Security and to the Trustee pursuant to the Guarantee and the Indenture are expressly set forth in Article Sixteen of the Indenture and reference is hereby made to the Indenture for the precise terms of the Guarantee and all of the other provisions of the Indenture to which this Guarantee relates.

THIS GUARANTEE WILL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, WITHOUT REGARD TO PRINCIPLES OF CONFLICTS OF LAW.

This Guarantee is subject to release upon the terms set forth in the Indenture.

IN WITNESS WHEREOF, the undersigned Guarantor has caused this Guarantee to be duly executed.

Dated:


BOSTON PROPERTIES LIMITED PARTNERSHIP

By:		Boston Properties, Inc., its general partner

By:
Name:
Title:

B-1

EXHIBIT C

FORMS OF CERTIFICATION

EXHIBIT C-1

FORM OF CERTIFICATE TO BE GIVEN BY PERSON ENTITLED

TO RECEIVE BEARER SECURITY OR TO OBTAIN INTEREST

PAYABLE PRIOR TO THE EXCHANGE DATE

CERTIFICATE

[Insert title or sufficient description of Securities to be delivered]

This is to certify that, as of the date hereof, and except as set forth below, the above-captioned Securities held by you for our account (i) are owned by person(s) that are not citizens or residents of the United States, domestic partnerships, domestic corporations or any estate or trust the income of which is subject to United States Federal income taxation regardless of its source (“United States person(s)”), (ii) are owned by United States person(s) that are (a) foreign branches of United States financial institutions (financial institutions, as defined in United States Treasury Regulations Section 1.165-12(c)(1)(v) are herein referred to as “financial institutions”) purchasing for their own account or for resale, or (b) United States person(s) who acquired the Securities through foreign branches of United States financial institutions and who hold the Securities through such United States financial institutions on the date hereof (and in either case (a) or (b), each such United States financial institution hereby agrees, on its own behalf or through its agent, that you may advise Boston Properties Limited Partnership or its agent that such financial institution will comply with the requirements of Section 165(j)(3)(A), (B) or (C) of the United States Internal Revenue Code of 1986, as amended, and the regulations thereunder), or (iii) are owned by United States or foreign financial institution(s) for purposes of resale during the restricted period (as defined in United States Treasury Regulations Section 1.163-5(c)(2)(i)(D)(7)), and, in addition, if the owner is a United States or foreign financial institution described in clause (iii) above (whether or not also described in clause (i) or (ii)), this is to further certify that such financial institution has not acquired the Securities for purposes of resale directly or indirectly to a United States person or to a person within the United States or its possessions.

As used herein, “United States” means the United States of America (including the States and the District of Columbia); and its “possessions” include Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, Wake Island and the Northern Mariana Islands.

We undertake to advise you promptly by tested telex or by telecopy on or prior to the date on which you intend to submit your certification relating to the above-captioned Securities held by you for our account in accordance with your operating procedures if any applicable statement herein is not correct on such date, and in the absence of any such notification it may be assumed that this certification applies as of such date.

C-2

This certificate excepts and does not relate to [U.S.$ ] of such interest in the above-captioned Securities in respect of which we are not able to certify and as to which we understand an exchange for an interest in a permanent Global Security or an exchange for and delivery of definitive Securities (or, if relevant, collection of any interest) cannot be made until we do so certify.

We understand that this certificate may be required in connection with certain tax legislation in the United States. If administrative or legal proceedings are commenced or threatened in connection with which this certificate is or would be relevant, we irrevocably authorize you to produce this certificate or a copy thereof to any interested party in such proceedings.

Dated: ,

[To be dated no earlier than the 15th day prior to (i) the Exchange Date or (ii) the relevant Interest Payment Date occurring prior to the Exchange Date, as applicable]

[Name of Person Making Certification]

(Authorized Signature)

Name:

Title:

C-3

EXHIBIT C-2

FORM OF CERTIFICATE TO BE GIVEN BY EUROCLEAR

AND CLEARSTREAM IN CONNECTION WITH THE EXCHANGE OF

A PORTION OF A TEMPORARY GLOBAL SECURITY OR TO

OBTAIN INTEREST PAYABLE PRIOR TO THE EXCHANGE DATE

CERTIFICATE

[Insert title or sufficient description of Securities to be delivered]

This is to certify that, based solely on written certifications that we have received in writing, by tested telex or by electronic transmission from each of the persons appearing in our records as persons entitled to a portion of the principal amount set forth below (our “Member Organizations”) substantially in the form attached hereto, as of the date hereof, [U.S.$ ] principal amount of the above-captioned Securities (i) is owned by person(s) that are not citizens or residents of the United States, domestic partnerships, domestic corporations or any estate or trust the income of which is subject to United States Federal income taxation regardless of its source (“United States person(s)”), (ii) is owned by United States person(s) that are (a) foreign branches of United States financial institutions (financial institutions, as defined in U.S. Treasury Regulations Section 1.165-12(c)(1)(v) are herein referred to as “financial institutions”) purchasing for their own account or for resale, or (b) United States person(s) who acquired the Securities through foreign branches of United States financial institutions and who hold the Securities through such United States financial institutions on the date hereof (and in either case (a) or (b), each such financial institution has agreed, on its own behalf or through its agent, that we may advise Boston Properties Limited Partnership or its agent that such financial institution will comply with the requirements of Section 165(j)(3)(A), (B) or (C) of the Internal Revenue Code of 1986, as amended, and the regulations thereunder), or (iii) is owned by United States or foreign financial institution(s) for purposes of resale during the restricted period (as defined in United States Treasury Regulations Section 1.163-5(c)(2)(i)(D)(7)), and, to the further effect, that financial institutions described in clause (iii) above (whether or not also described in clause (i) or (ii)) have certified that they have not acquired the Securities for purposes of resale directly or indirectly to a United States person or to a person within the United States or its possessions.

As used herein, “United States” means the United States of America (including the States and the District of Columbia); and its “Possessions” include Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, Wake Island and the Northern Mariana Islands.

We further certify that (i) we are not making available herewith for exchange (or, if relevant, collection of any interest) any portion of the temporary Global Security representing the above-captioned Securities excepted in the above-referenced certificates of Member Organizations and (ii) as of the date hereof we have not received any notification from any of our Member Organizations to the effect that the statements made by such Member Organizations with respect to any portion of the part submitted herewith for exchange (or, if relevant, collection of any interest) are no longer true and cannot be relied upon as of the date hereof.

C-4

We understand that this certification is required in connection with certain tax legislation in the United States. If administrative or legal proceedings are commenced or threatened in connection with which this certificate is or would be relevant, we irrevocably authorize you to produce this certificate or a copy thereof to any interested party in such proceedings.

Dated:

[To be dated no earlier than the Exchange Date or the relevant Interest Payment Date occurring prior to the Exchange Date, as applicable]


[Euroclear Bank S.A./N.V., as Operator of the Euroclear System] [Clearstream Banking Luxembourg]

By:

C-5

Form of Indenture for Subordinated Debt Security of BP Inc.

Exhibit 4.10

BOSTON PROPERTIES, INC.

Company

BOSTON PROPERTIES LIMITED PARTNERSHIP

Guarantor

THE BANK OF NEW YORK TRUST COMPANY, N.A.

Trustee

Form of Indenture

Dated as of [ ]

Subordinated Debt Securities

TABLE OF CONTENTS


		Page
RECITALS OF THE COMPANY AND THE GUARANTOR		1

ARTICLE ONE - DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION		1
SECTION 1.01.	Definitions	1
SECTION 1.02.	Compliance Certificates and Opinions	11
SECTION 1.03.	Form of Documents Delivered to Trustee	12
SECTION 1.04.	Acts of Holders.	12
SECTION 1.05.	Notices, etc., to Trustee, Company and Guarantor	14
SECTION 1.06.	Notice to Holders: Waiver	15
SECTION 1.07.	Counterparts; Effect of Headings and Table of Contents	16
SECTION 1.08.	Successors and Assigns	16
SECTION 1.09.	Severability Clause	16
SECTION 1.10.	Benefits of Indenture	16
SECTION 1.11.	Governing Law	16
SECTION 1.12.	Non-Business Day	16
SECTION 1.13.	Limited Liability; Immunity of Partners, Stockholders, Directors, Officers and Agents of the Company and the Guarantor	17
SECTION 1.14.	Conflict with Trust Indenture Act	17

ARTICLE TWO - SECURITIES FORMS		17
SECTION 2.01.	Forms of Securities	17
SECTION 2.02.	Form of Trustee’s Certificate of Authentication	18
SECTION 2.03.	Securities Issuable in Global Form	18
SECTION 2.04.	Form of Guarantee	19

ARTICLE THREE - THE SECURITIES		19
SECTION 3.01.	Amount Unlimited; Issuable in Series	19
SECTION 3.02.	Denominations	23
SECTION 3.03.	Execution, Authentication, Delivery and Dating	23
SECTION 3.04.	Temporary Securities.	26
SECTION 3.05.	Registration, Registration of Transfer and Exchange	28
SECTION 3.06.	Mutilated, Destroyed, Lost and Stolen Securities	32
SECTION 3.07.	Payment of Interest; Interest Rights Preserved	33
SECTION 3.08.	Persons Deemed Owners	35
SECTION 3.09.	Cancellation	36
SECTION 3.10.	Computation of Interest	36
SECTION 3.11.	CUSIP Numbers	36

ARTICLE FOUR - SATISFACTION AND DISCHARGE		36
SECTION 4.01.	Satisfaction and Discharge of Indenture	36
SECTION 4.02.	Application of Trust Funds	38

(i)



ARTICLE FIVE - REMEDIES		38
SECTION 5.01.	Events of Default	38
SECTION 5.02.	Acceleration of Maturity; Rescission and Annulment	40
SECTION 5.03.	Collection of Indebtedness and Suits for Enforcement by Trustee	41
SECTION 5.04.	Trustee May File Proofs of Claim	42
SECTION 5.05.	Trustee May Enforce Claims Without Possession of Securities or Coupons	43
SECTION 5.06.	Application of Money Collected	43
SECTION 5.07.	Limitation on Suits	44
SECTION 5.08.	Unconditional Right of Holders to Receive Principal, Premium or Make-Whole Amount, if any, and Interest, if any	44
SECTION 5.09.	Restoration of Rights and Remedies	45
SECTION 5.10.	Rights and Remedies Cumulative	45
SECTION 5.11.	Delay or Omission Not Waiver	45
SECTION 5.12.	Control by Holders of Securities	45
SECTION 5.13.	Waiver of Past Defaults	46
SECTION 5.14.	Waiver of Usury, Stay or Extension Laws	46
SECTION 5.15.	Undertaking for Costs	46

ARTICLE SIX - THE TRUSTEE		47
SECTION 6.01.	Notice of Defaults	47
SECTION 6.02.	Certain Rights of Trustee	47
SECTION 6.03.	Not Responsible for Recitals or Issuance of Securities	49
SECTION 6.04.	May Hold Securities	49
SECTION 6.05.	Money Held in Trust	49
SECTION 6.06.	Compensation and Reimbursement	49
SECTION 6.07.	Corporate Trustee Required; Eligibility; Conflicting Interests	50
SECTION 6.08.	Resignation and Removal; Appointment of Successor.	50
SECTION 6.09.	Acceptance of Appointment by Successor.	52
SECTION 6.10.	Merger, Conversion, Consolidation or Succession to Business	53
SECTION 6.11.	Appointment of Authenticating Agent	53
SECTION 6.12.	Certain Duties and Responsibilities of the Trustee.	55

ARTICLE SEVEN - HOLDERS’ LISTS AND REPORTS BY TRUSTEE, COMPANY AND GUARANTOR		56
SECTION 7.01.	Disclosure of Names and Addresses of Holders	56
SECTION 7.02.	Reports by Trustee	56
SECTION 7.03.	Reports by Company and Guarantor	56
SECTION 7.04.	Company to Furnish Trustee Names and Addresses of Holders	57

ARTICLE EIGHT - CONSOLIDATION, MERGER, SALE, LEASE OR CONVEYANCE		58
SECTION 8.01.	Consolidations and Mergers of Company and Guarantor and Sales, Leases and Conveyances Permitted Subject to Certain Conditions	58
SECTION 8.02.	Rights and Duties of Successor Corporation and Partnership	58
SECTION 8.03.	Officers’ Certificate and Opinion of Counsel	59

(ii)



ARTICLE NINE - SUPPLEMENTAL INDENTURES		59
SECTION 9.01.	Supplemental Indentures Without Consent of Holders	59
SECTION 9.02.	Supplemental Indentures with Consent of Holders	61
SECTION 9.03.	Execution of Supplemental Indentures	62
SECTION 9.04.	Effect of Supplemental Indentures	62
SECTION 9.05.	Conformity with Trust Indenture Act	62
SECTION 9.06.	Reference in Securities to Supplemental Indentures	62

ARTICLE TEN - COVENANTS		63
SECTION 10.01.	Payment of Principal, Premium or Make-Whole Amount, if any, and Interest, if any	63
SECTION 10.02.	Maintenance of Office or Agency	63
SECTION 10.03.	Money for Securities Payments to Be Held in Trust	65
SECTION 10.04.	Existence	66
SECTION 10.05.	Maintenance of Properties	66
SECTION 10.06.	Insurance	67
SECTION 10.07.	Payment of Taxes and Other Claims	67
SECTION 10.08.	Statement as to Compliance	67
SECTION 10.09.	Waiver of Certain Covenants	67

ARTICLE ELEVEN - REDEMPTION OF SECURITIES		68
SECTION 11.01.	Applicability of Article	68
SECTION 11.02.	Election to Redeem; Notice to Trustee	68
SECTION 11.03.	Selection by Trustee of Securities to Be Redeemed	68
SECTION 11.04.	Notice of Redemption	68
SECTION 11.05.	Deposit of Redemption Price	70
SECTION 11.06.	Securities Payable on Redemption Date	70
SECTION 11.07.	Securities Redeemed in Part	71

ARTICLE TWELVE - SINKING FUNDS		71
SECTION 12.01.	Applicability of Article	71
SECTION 12.02.	Satisfaction of Sinking Fund Payments with Securities	71
SECTION 12.03.	Redemption of Securities for Sinking Fund	72

ARTICLE THIRTEEN - REPAYMENT AT THE OPTION OF HOLDERS		72
SECTION 13.01.	Applicability of Article	72
SECTION 13.02.	Repayment of Securities	72
SECTION 13.03.	Exercise of Option	73
SECTION 13.04.	When Securities Presented for Repayment Become Due and Payable	73
SECTION 13.05.	Securities Repaid in Part	74

ARTICLE FOURTEEN - DEFEASANCE AND COVENANT DEFEASANCE		74
SECTION 14.01.	Applicability of Article: Company’s Option to Effect Defeasance or Covenant Defeasance	74
SECTION 14.02.	Defeasance and Discharge	75
SECTION 14.03.	Covenant Defeasance	75

(iii)


SECTION 14.04.	Conditions to Defeasance or Covenant Defeasance	76
SECTION 14.05.	Deposited Money and Government Obligations to Be Held in Trust; Other Miscellaneous Provisions	77

ARTICLE FIFTEEN - MEETINGS OF HOLDERS OF SECURITIES		78
SECTION 15.01.	Purposes for Which Meetings May Be Called	78
SECTION 15.02.	Call, Notice and Place of Meetings.	78
SECTION 15.03.	Persons Entitled to Vote at Meetings	79
SECTION 15.04.	Quorum; Action	79
SECTION 15.05.	Determination of Voting Rights; Conduct and Adjournment of Meetings.	80
SECTION 15.06.	Counting Votes and Recording Action of Meetings	81

ARTICLE SIXTEEN - GUARANTEE		81
SECTION 16.01.	The Guarantee	81

ARTICLE SEVENTEEN - SUBORDINATION OF SECURITIES		83
SECTION 17.01.	Securities Subordinate to Senior Debt.	83
SECTION 17.02.	Payment Over of Proceeds Upon Dissolution, Etc.	83
SECTION 17.03.	Prior Payment to Senior Debt upon Acceleration of Securities.	84
SECTION 17.04.	No Payment When Senior Debt in Default.	84
SECTION 17.05.	Payment Permitted in Certain Situations.	85
SECTION 17.06.	Subrogation to Rights of Holders of Senior Debt.	85
SECTION 17.07.	Provisions Solely to Define Relative Rights	86
SECTION 17.08.	Trustee to Effectuate Subordination.	86
SECTION 17.09.	No Waiver of Subordination Provisions.	86
SECTION 17.10.	Notice to Trustee.	87
SECTION 17.11.	Reliance on Judicial Order or Certificate of Liquidating Agent.	87
SECTION 17.12.	Trustee Not Fiduciary for Holders of Senior Debt.	87
SECTION 17.13.	Rights of Trustee as Holder of Senior Debt; Preservation of Trustee’s Rights.	88
SECTION 17.14.	Articles Applicable to Paying Agents.	88

SIGNATURES		89

EXHIBIT A FORM OF REDEEMABLE OR NON-REDEEMABLE SENIOR SECURITY		A-1

EXHIBIT B FORM OF GUARANTEE		B-1

EXHIBIT C FORMS OF CERTIFICATION		C-2

(iv)

BOSTON PROPERTIES, INC.

Reconciliation and tie between the Trust Indenture Act of 1939, as amended (the “Trust Indenture Act” or “TIA”) and the Indenture, dated as of [ ].


	Trust Indenture Act Section	Indenture Section
§310(a)(1)		6.07
(a)(2)		Not applicable
(a)(3)		Not applicable
(a)(4)		Not applicable
(a)(5)		Not applicable
(b)		6.04, 6.08
§311		1.01(2), 6.04
§312		7.01
(a)		Not applicable
(b)		7.01
(c)		Not applicable
§313		1.01(“Outstanding”), 7.02
(c)		6.01, 7.03
§314		Not applicable
(a)		Not applicable
(b)		Not applicable
(c)(1)		Not applicable
(c)(2)		Not applicable
(c)(3)		Not applicable
(d)		Not applicable
(e)		Not applicable
§315(a)		3.03, 6.02
(b)		3.03, 6.02
(c)		3.03, 6.02
(d)		3.03, 6.02
(e)		6.08
§316(a)		Not applicable
(a)(1)(A)		Not applicable
(a)(1)(B)		Not applicable
(a)(2)		Not applicable
(b)		Not applicable
(c)		1.04
§317(a)(1)		Not applicable
(a)(2)		Not applicable
(b)		Not applicable
§318(a)		Not applicable

(v)

NOTE: This reconciliation and tie shall not, for any purpose, be deemed to be a part of the Indenture.

(vi)

RECITALS OF THE COMPANY AND THE GUARANTOR

All things necessary to make this Indenture a valid and legally binding agreement of the Company and the Guarantor, in accordance with its terms, have been done.

NOW, THEREFORE, THIS INDENTURE WITNESSETH:

ARTICLE ONE—DEFINITIONS AND OTHER PROVISIONS OF GENERAL

APPLICATION

SECTION 1.01. Definitions. For all purposes of this Indenture, except as otherwise expressly provided or unless the context otherwise requires:

(1) the terms defined in this Article have the meanings assigned to them in this Article, and include the plural as well as the singular;

(3) all accounting terms not otherwise defined herein have the meanings assigned to them in accordance with GAAP;

(4) any reference to an “Article” or a “Section” refers to an Article or Section, as the case may be, of this Indenture and

(5) the words “herein,” “hereof “and “hereunder” and other words of similar import refer to this Indenture as a whole and not to any particular Article, Section or other subdivision.

“Act,” when used with respect to any Holder, has the meaning specified in Section 1.04.

“Authenticating Agent” means any Person authorized by the Trustee pursuant to Section 6.11 hereof to act on behalf of the Trustee to authenticate Securities of one or more Series.

“Bankruptcy Law” has the meaning specified in Section 5.01.

“Bearer Security” means any Security established pursuant to Section 2.01 which is payable to the bearer.

authority, together with a resolution certified by the Secretary or an Assistant Secretary of Boston Properties to have been duly adopted by the Board of Directors and to be in full force and effect on the date of such certification authorizing such delegation, and, in each case, delivered to the Trustee.