Document:

Underwriting Agreement dated October 20, 2009

 Exhibit 10.1 
 $500,000,000 
 CROWN CASTLE INTERNATIONAL CORP. 

 7.125% SENIOR NOTES DUE 2019 
 UNDERWRITING AGREEMENT 
  
 October 20, 2009 

 October 20, 2009 
 To the Managers named in Schedule I hereto 
 for the Underwriters named in Schedule II hereto

 Ladies and Gentlemen: 
 Crown Castle International Corp., a Delaware corporation (the “Company”), proposes to issue and sell to the several underwriters named in Schedule II hereto (the “Underwriters”), for whom you are
acting as managers (the “Managers”), the principal amount of its debt securities identified in Schedule I hereto (the “Notes”), to be issued under the indenture specified in Schedule I hereto (the
“Indenture”) between the Company and the Trustee identified in such Schedule (the “Trustee”). If the firm or firms listed in Schedule II hereto include only the Managers listed in Schedule I hereto, then
the terms “Underwriters” and “Managers” as used herein shall each be deemed to refer to such firm or firms. 
 The Company has filed with the Securities and Exchange Commission (the “Commission”) a registration statement (the file number of which is set forth in Schedule I hereto), including a prospectus, on Form S-3,
relating to securities (the “Shelf Securities”), including the Notes, to be issued from time to time by the Company. The registration statement, as amended to the date of this Agreement, including the information (if any) deemed to
be part of the registration statement at the time of effectiveness pursuant to Rule 430A or Rule 430B under the Securities Act of 1933, as amended (the “Securities Act”), is hereinafter referred to as the “Registration
Statement,” and the related prospectus covering the Shelf Securities dated January 16, 2009, in the form first used to confirm sales of the Notes (or in the form first made available to the Underwriters by the Company to meet requests
of purchasers pursuant to Rule 173 under the Securities Act) is hereinafter referred to as the “Basic Prospectus.” The Basic Prospectus, as supplemented by the prospectus supplement specifically relating to the Notes in the form
first used to confirm sales of the Notes (or in the form first made available to the Underwriters by the Company to meet requests of purchasers pursuant to Rule 173 under the Securities Act) is hereinafter referred to as the
“Prospectus,” and the term “preliminary prospectus” means any preliminary form of the Prospectus. For purposes of this Agreement, “free writing prospectus” has the meaning set forth in Rule 405
under the Securities Act, “Time of Sale Prospectus” means the preliminary prospectus together with the free writing prospectuses, if any, each identified in Schedule I hereto, and “broadly available road show” means
a “bona fide electronic road show” as defined in Rule 433(h)(5) under the Securities Act that has been made available without restriction to any person. As used herein, the terms “Registration Statement,” “Basic
Prospectus,” “preliminary prospectus,” “Time of Sale Prospectus” and “Prospectus” shall include the documents, if any, incorporated by reference therein. The terms “supplement,”
“amendment,” and “amend” as used 

 herein with respect to the Registration Statement, the Basic Prospectus, the Time of Sale Prospectus, any
preliminary prospectus or free writing prospectus shall include all documents subsequently filed by the Company with the Commission pursuant to the Securities Exchange Act of 1934, as amended (the “Exchange Act”), that are deemed to
be incorporated by reference therein. 
 1. Representations and Warranties of the Company. The Company represents and
warrants to and agrees with each of the Underwriters that: 
 (a) The Registration Statement has become effective; no stop order
suspending the effectiveness of the Registration Statement is in effect, and no proceedings for such purpose are pending before or, to the knowledge of the Company, threatened by the Commission. The Registration Statement is an automatic shelf
registration statement as defined in Rule 405 under the Securities Act, and the Company is a well-known seasoned issuer (as defined in Rule 405 under the Securities Act) eligible to use the Registration Statement as an automatic shelf registration
statement, and the Company has not received notice that the Commission objects to the use of the Registration Statement as an automatic shelf registration statement. 
 (b) (i) Each document, if any, filed or to be filed pursuant to the Exchange Act and incorporated by reference in the Time of Sale Prospectus or the Prospectus complied or will comply when so filed in all
material respects with the Exchange Act and the applicable rules and regulations of the Commission thereunder, (ii) each part of the Registration Statement, when such part became effective, did not contain, and each such part, as amended or
supplemented, if applicable, will not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading, (iii) the Registration Statement
does not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading, (iv) the Registration Statement, as of the date hereof,
complies, and the Prospectus, as of its date, will comply, and the Registration Statement and the Prospectus, as amended or supplemented, if applicable, will comply, as of the Closing Date, in all material respects with the Securities Act and the
applicable rules and regulations of the Commission thereunder, (v) the Time of Sale Prospectus does not, and at the time of each sale of the Notes in connection with the offering when the Prospectus is not yet available to prospective
purchasers and at the Closing Date (as defined in Section 5), the Time of Sale Prospectus, as then amended or supplemented by the Company, if applicable, will not, contain any untrue statement of a material fact or omit to state a material fact
necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading, (vi) each broadly available road show, if any, when considered together with the Time of Sale Prospectus, does not contain
any untrue statement of a material fact or omit to state a material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not 
  

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 misleading and (vii) the Prospectus, as of its date, will not contain and, as amended or supplemented,
if applicable, will not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading, except that the
representations and warranties set forth in this paragraph do not apply to (A) statements or omissions in the Registration Statement, the Time of Sale Prospectus or the Prospectus based upon information relating to any Underwriter furnished to
the Company in writing by such Underwriter through the Managers expressly for use therein or (B) that part of the Registration Statement that constitutes the Statement of Eligibility (Form T-1) under the Trust Indenture Act of 1939, as
amended (the “Trust Indenture Act”), of the Trustee. 
 (c) The Company is not an “ineligible issuer”
in connection with the offering pursuant to Rules 164, 405 and 433 under the Securities Act. Any free writing prospectus that the Company is required to file pursuant to Rule 433(d) under the Securities Act has been, or will be, filed with the
Commission in accordance with the requirements of the Securities Act and the applicable rules and regulations of the Commission thereunder. Each free writing prospectus that the Company has filed, or is required to file, in connection with the
offering of Notes pursuant to Rule 433(d) under the Securities Act or that was prepared by or on behalf of or used or referred to by the Company complies, or will comply, in all material respects with the requirements of the Securities Act and the
applicable rules and regulations of the Commission thereunder. Except for the free writing prospectuses, if any, identified in Schedule I hereto forming part of the Time of Sale Prospectus, and electronic road shows, if any, each furnished to you
before first use, the Company has not prepared, used or referred to, and will not, without your prior consent, prepare, use or refer to, any free writing prospectus. 
 (d) Neither the Company nor any of its subsidiaries has sustained, since the date of the latest audited financial statements incorporated by reference into the Registration Statement, the Time of Sale
Prospectus or the Prospectus, any loss or interference with its business from fire, explosion, flood or other calamity, whether or not covered by insurance, or from any labor dispute or court or governmental action, order or decree, otherwise than
as set forth or contemplated in the Time of Sale Prospectus and the Prospectus or as would not reasonably be expected, in the aggregate, to result in a Material Adverse Effect (as defined below); and, since the respective dates as of which
information is given in the Time of Sale Prospectus and the Prospectus, there has not been any change in the capital stock or long-term debt of the Company or any of its subsidiaries or any material adverse change, or any development involving a
prospective material adverse change, except such as are described in the Time of Sale Prospectus and the Prospectus or such as would not be reasonably expected, in the aggregate, to result in a material adverse effect on the condition (financial or
other), business, properties or results of operations of the Company and the Material Subsidiaries (as defined in Section 1(g)), taken as a whole (a “Material Adverse Effect”). 
  

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 (e)(i) The Company and each of its subsidiaries have (1) good and marketable fee or
leasehold title, as applicable, to all real property owned or leased by them and (2) good and marketable title to all personal property owned by them; and (ii) any other personal property leased or held by the Company or any of its
subsidiaries pursuant to any licenses, easements, management agreements, other contracts or occupancy agreements or otherwise is leased or held under valid, subsisting and enforceable agreements, in each case free and clear of all liens,
encumbrances and defects except such as are described in the Time of Sale Prospectus and the Prospectus or would not reasonably be expected, in the aggregate, to have a Material Adverse Effect. 
 (f) The Company is a corporation duly incorporated and validly existing and in good standing under the laws of the State of Delaware with
all requisite corporate power and authority to own, lease and operate its properties and to conduct its business as described in the Time of Sale Prospectus and the Prospectus, and is duly registered and qualified to conduct its business and is in
good standing in each jurisdiction or place where the nature of its properties or the conduct of its business requires such registration or qualification, except where the failure so to register or qualify or to be in good standing would not have a
Material Adverse Effect; and each Material Subsidiary of the Company has been duly incorporated or formed, as the case may be, and is validly existing as a corporation, limited partnership, limited liability company or other legal entity in good
standing or the equivalent under the laws of its jurisdiction of incorporation or formation, as the case may be. 
 (g) Each
subsidiary of the Company that constitutes a “significant subsidiary,” as such term is defined in Rule 405 of the rules and regulations under the Securities Act, is included in the list of subsidiaries of the Company set forth on Schedule
III hereto (each such subsidiary listed on Schedule III hereto, a “Material Subsidiary” and, collectively, the “Material Subsidiaries”). 
 (h) The Notes have been duly authorized by the Company and, when executed and authenticated in accordance with the provisions of the Indenture and delivered to and paid for by the Underwriters in
accordance with the terms of this Agreement, will be valid and binding obligations of the Company, enforceable in accordance with their terms, subject to applicable bankruptcy, insolvency, reorganization, moratorium, fraudulent transfer and other
similar laws affecting creditors’ rights generally and equitable principles of general applicability, and will be entitled to the benefits of the Indenture pursuant to which such Notes are to be issued. 
 (i) The Indenture has been duly authorized by the Company, and when executed and delivered by the Company (assuming due authorization,

  

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 execution and delivery by the Trustee), will constitute a valid and binding agreement of the Company,
enforceable against it in accordance with its terms, subject to applicable bankruptcy, insolvency, reorganization, moratorium, fraudulent transfer and other similar laws affecting creditors’ rights generally and equitable principles of general
applicability; on the Closing Date, the Indenture will conform in all material respects to the requirements of, and has been duly qualified under, the Trust Indenture Act, and the rules and regulations of the Commission applicable to an indenture
that is qualified thereunder. 
 (j) No “nationally recognized statistical rating organization” (as such term is
defined for purposes of Rule 436(g)(2) under the Securities Act) (i) has imposed (or has informed the Company that it is considering imposing) any condition (financial or otherwise) on the Company or any of its subsidiaries relating to any
rating assigned to the Company or any such subsidiary or to any securities of the Company or any such subsidiary, or (ii) has indicated to the Company or any of its subsidiaries that it is considering (A) the downgrading, suspension, or
withdrawal of, or any review for a possible change that does not indicate the direction of the possible change in, any rating so assigned, or (B) any change in the outlook for any rating of the Company or any of its subsidiaries or any
securities of the Company or any such subsidiary. 
 (k) The execution and delivery by the Company of, and the performance by
the Company of its obligations under, this Agreement, the Indenture and the Notes will not conflict with, or result in a breach or violation of, any of the terms or provisions of or, with the giving of notice or the lapse of time or both, constitute
a default under (A) any indenture, mortgage, deed of trust, loan agreement or other agreement or instrument to which the Company or any of its subsidiaries is a party or by which the Company or any of its subsidiaries is bound or to which any
of the property or assets of the Company or any of its subsidiaries is subject, (B) the provisions of the charter, by-laws or other constitutive documents of the Company or any of its subsidiaries or (C) any statute or any order, rule or
regulation of any court or governmental agency or body having jurisdiction over the Company or any of its subsidiaries or any of their properties or assets except in the cases of clause (A) or (C), such breaches, violations or defaults that in
the aggregate would not have a Material Adverse Effect; and no consent, approval, authorization, order, registration or qualification of or with any such court or governmental agency or body is required for the performance by the Company of its
obligations under, this Agreement, the Indenture and the Notes, except where the failure to obtain or make such consents, approvals, authorizations, registrations or qualifications would not, individually or in the aggregate, have a Material Adverse
Effect. 
 (l) Neither the Company nor any of its subsidiaries (A) is in violation of its charter, by-laws or other
constitutive documents, (B) is in default, and no event has occurred which, with notice or lapse of time or both, would constitute such a default, in the due performance or observance of any term, covenant or 
  

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 condition contained in any material indenture, mortgage, deed of trust, loan agreement or other agreement or
instrument to which it is a party or by which it is bound or to which any of its properties or assets is subject or (C) is in violation of any law, ordinance, governmental rule, regulation or court decree to which it or its property or assets
may be subject or has failed to obtain any material license, permit, certificate, franchise or other governmental authorization or permit necessary to the ownership of its property or to the conduct of its business, except for, in the cases of
clause (B) or (C), such defaults, violations or failures to obtain that in the aggregate would not have a Material Adverse Effect. 
 (m) The statements contained in (A) the Time of Sale Prospectus and the Prospectus under the captions “Description of Notes” and “Material United States Federal Income Tax
Consequences” and (B) the Prospectus under the caption “Underwriting,” insofar as they are descriptions of contracts, agreements or other legal documents, or refer to statements of law or legal conclusions, are accurate in all
material respects and present fairly the information purported to be described therein. 
 (n) Other than as set forth in the
Time of Sale Prospectus and the Prospectus, there are no legal or governmental proceedings pending to which the Company or any of its subsidiaries is a party or of which any property of the Company or any of its subsidiaries is the subject which, if
determined adversely to the Company or any of its subsidiaries, would individually or in the aggregate have a Material Adverse Effect; and, to the best of the Company’s knowledge, no such proceedings are threatened or contemplated by
governmental authorities or threatened by others. 
 (o) Each preliminary prospectus filed as part of the registration statement
as originally filed or as part of any amendment thereto, or filed pursuant to Rule 424 under the Securities Act, complied when so filed in all material respects with the Securities Act and the applicable rules and regulations of the Commission
thereunder. 
 (p) The Company is not, and after giving effect to the offering and sale of the Notes and the application of the
proceeds thereof as described in the Prospectus will not be, required to register as an “investment company” as such term is defined in the Investment Company Act of 1940, as amended. 
 (q) There has been no storage, disposal, generation, manufacture, refinement, transportation, handling or treatment of toxic wastes, medical
wastes, hazardous wastes or hazardous substances by the Company or any of its subsidiaries (or, to the knowledge of the Company, any of their predecessors in interest) at, upon or from any of the property now or previously owned or leased by the
Company or any of its subsidiaries in violation of any applicable law, ordinance, rule, regulation, order, judgment, decree or permit or which would require remedial action under any applicable law, ordinance, rule, regulation, 
  

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 order, judgment, decree or permit, except for any violation or remedial action which would not have, or
could not be reasonably likely to have, singularly or in the aggregate, a Material Adverse Effect; there has been no material spill, discharge, leak, emission, injection, escape, dumping or release of any kind onto such property or into the
environment surrounding such property of any toxic wastes, medical wastes, solid wastes, hazardous wastes or hazardous substances due to or caused by the Company or any of its subsidiaries or with respect to which the Company or any of its
subsidiaries has knowledge, except for any such spill, discharge, leak, emission, injection, escape, dumping or release which would not have or would not be reasonably likely to have, singularly or in the aggregate, a Material Adverse Effect; and
the terms “hazardous wastes,” “toxic wastes,” “hazardous substances” and “medical wastes” shall have the meanings specified in any applicable local, state, federal and foreign laws or regulations with respect
to environmental protection. 
 (r) KPMG LLP, who have certified certain financial statements of the Company and its
subsidiaries, are independent public accountants as required by the Securities Act and the rules and regulations of the Commission thereunder. 
 (s) The Company has all requisite corporate power and authority to execute and deliver this Agreement and to otherwise perform its obligations under this Agreement. This Agreement has been duly
authorized, executed and delivered by the Company. 
 (t) The Company’s consolidated historical financial statements,
together with the related notes thereto, included in the Form 10-K and Form 10-Q which are incorporated into the Time of Sale Prospectus and the Prospectus, comply as to form in all material respects with the applicable requirements of Regulation
S-X under the Securities Act. Such historical financial statements fairly present the financial position of the Company at the respective dates indicated and the results of operations and cash flows for the respective periods indicated, in each case
in accordance with generally accepted accounting principles consistently applied throughout such periods. The other financial and statistical information and data incorporated or included in the Registration Statement, the Time of Sale Prospectus
and the Prospectus are, in all material respects, fairly presented and prepared on a basis consistent with the financial statements and the books and records of the Company. 
 (u) The Company and each of the Material Subsidiaries has such permits, licenses, franchises, registrations and other approvals or
authorizations of any governmental or regulatory authority (“Permits”), including, without limitation, any permits required by the Federal Communications Commission (“FCC”) or the Federal Aviation Administration, as
are necessary under applicable law to own their respective properties and to conduct their respective businesses in the manner described in the Time of Sale Prospectus and the Prospectus, except to the extent that the failure to have such Permits
would not 
  

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 have a Material Adverse Effect. The Company and the Material Subsidiaries have fulfilled and performed, in
all material respects, all their respective obligations with respect to the Permits, and no event has occurred which allows, or after notice or lapse of time would allow, revocation or termination thereof or results in any other impairment of the
rights of, or imposition of a penalty on, the holder of any such Permit, subject in each case to such qualification as may be set forth in the Time of Sale Prospectus and the Prospectus and except to the extent that any such revocation, termination,
impairment or penalty would not have a Material Adverse Effect. Except as described in the Time of Sale Prospectus and the Prospectus, none of the Permits contains any restriction that has not previously been satisfied and that is materially
burdensome to the Company or any of the Material Subsidiaries. 
 (v) For each existing tower of the Company not yet registered
with the FCC where registration will be required, the FCC’s grant of an application for registration of such tower will not have a significant environmental effect as defined under Section 1.1307(a) or (b) of the FCC’s rules.

 (w) The consummation of the transactions contemplated by this Agreement, the Indenture and the Notes shall not cause any
third party to have any rights of first refusal with respect to the acquisition of towers of the Company or any of its subsidiaries under any agreement filed as an exhibit to any document incorporated by reference in the Prospectus (the
“Material Agreements”) that has not already been described in the Time of Sale Prospectus and the Prospectus as to which the Company and any of the Material Subsidiaries or any of their property or assets may be subject. 

(x) The Company and each of the Material Subsidiaries owns or possesses all patents, trademarks, trademark registrations, service marks,
service mark registrations, trade names, copyrights, licenses, inventions, trade secrets and rights described in the Time of Sale Prospectus and the Prospectus as being owned by any of them or necessary for the conduct of their respective
businesses, and neither the Company nor any of the Material Subsidiaries is aware of any claim to the contrary or any challenge by any other person to the rights of the Company or any of the Material Subsidiaries with respect to such rights that, if
determined adversely to the Company or any such Material Subsidiary, would individually or in the aggregate have a Material Adverse Effect. 
 (y) Neither the Company nor any of its subsidiaries is involved in any strike, job action or labor dispute with any group of employees, and, to the knowledge of the Company and its subsidiaries, no such
action or dispute is threatened. 
 (z) The Company and each of its subsidiaries are in compliance in all material respects with
all presently applicable provisions of the Employee Retirement Income Security Act of 1974, as amended, including the regulations 
  

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 and published interpretations thereunder (“ERISA”); no “reportable event” (as
defined in ERISA) has occurred with respect to any “pension plan” (as defined in ERISA) for which the Company would have any liability; the Company has not incurred and does not expect to incur liability under (i) Title IV of ERISA
with respect to termination of, or withdrawal from, any “pension plan” or (ii) Sections 412 or 4971 of the Internal Revenue Code of 1986, as amended, including the regulations and published interpretations thereunder (the
“Code”); and each “pension plan” for which the Company would have any liability that is intended to be qualified under Section 401(a) of the Code is so qualified in all material respects and nothing has occurred,
whether by action or by failure to act, which would cause the loss of such qualification. 
 (aa) The Company and each of its
subsidiaries have filed all federal, state and local income and franchise tax returns required to be filed through the date hereof and have paid all taxes due thereon to the extent due and payable, except to the extent it is currently being
contested in good faith, and no tax deficiency has been determined adversely to the Company or any of its subsidiaries nor does the Company or any of its subsidiaries have any knowledge of any tax deficiency, except where such failure to file such
tax return or such tax deficiency (if determined adversely to the Company or any of its subsidiaries) would not have a Material Adverse Effect. 
 (bb) The Company (i) makes and keeps accurate books and records and (ii) maintains a system of internal accounting controls sufficient to provide reasonable assurance that (A) transactions
are executed in accordance with management’s authorization, (B) transactions are recorded as necessary to permit preparation of its financial statements in conformity with generally accepted accounting principles and to maintain
accountability for assets, (C) access to its financial assets is permitted only in accordance with management’s general or specific authorization and (D) the reported accountability for its assets is compared with existing assets at
reasonable intervals and appropriate action is taken with respect to any differences. 
 (cc) The Company and each of the
Material Subsidiaries carry, or are covered by, insurance in such amounts and covering such risks as is adequate for the conduct of its businesses and the value of its properties and as is customary for companies engaged in similar businesses in
similar industries. 
 (dd) The Company has established and maintains disclosure controls and procedures (as such term is
defined in Rule 13a-14 and 15d-14 under the Exchange Act); such disclosure controls and procedures are designed to ensure that material information relating to the Company, including its consolidated subsidiaries, is made known to the Company’s
Chief Executive Officer and its Chief Financial Officer by others within those entities, and such disclosure controls and procedures are effective to perform the functions for which they were established; the Company’s auditors and the Audit
Committee of the Board of 
  

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 Directors have been advised of: (A) any significant deficiencies in the design or operation of internal
controls which could adversely affect the Company’s ability to record, process, summarize, and report financial data; and (B) any fraud, whether or not material, that involves management or other employees who have a role in the
Company’s internal controls; any material weaknesses in internal controls have been identified for the Company’s auditors; and since the date of the most recent evaluation of such disclosure controls and procedures, there have been no
significant changes in internal controls or in other factors that could significantly affect internal controls, including any corrective actions with regard to significant deficiencies and material weaknesses. 
 (ee) There is and has been no failure on the part of the Company and any of the Company’s directors or officers, in their capacities as
such, to comply with the provisions of the Sarbanes-Oxley Act of 2002 and the rules and regulations promulgated in connection therewith. 
 (ff) Neither the Company or any of its subsidiaries, nor, to the knowledge of the Company, any director, officer, agent, employee or other person associated with or acting on behalf of the Company or any
of its subsidiaries, has (i) used any corporate funds for any unlawful contribution, gift, entertainment or other unlawful expense relating to political activity; (ii) made any direct or indirect unlawful payment to any foreign or domestic
government official or employee from corporate funds; (iii) violated or is in violation of any provision of the U.S. Foreign Corrupt Practices Act of 1977; or (iv) made any bribe, rebate, payoff, influence payment, kickback or other
unlawful payment. 
 2. Agreements to Sell and Purchase. The Company hereby agrees to sell to the several Underwriters,
and each Underwriter, upon the basis of the representations and warranties herein contained, but subject to the conditions hereinafter stated, agrees, severally and not jointly, to purchase from the Company the respective principal amounts of Notes
set forth in Schedule II hereto opposite its name at the “Purchase Price” set forth in Schedule I hereto. 
 3. Public Offering. You have advised the Company that the Underwriters propose to make a public offering of their respective portions of the Notes as soon after the Registration Statement and this Agreement have become effective as
in your judgment is advisable. You have further advised the Company that the Notes are to be offered to the public upon the terms set forth in the Prospectus. 
 4. Payment and Delivery. Payment for the Notes shall be made to the Company in Federal or other funds immediately available in New York City on the closing date and time set forth in
Schedule I hereto, or at such other time on the same or such other date, not later than the fifth business day thereafter, as may be designated in writing by you. The time and date of such payment are hereinafter referred to as the
“Closing Date.” 
  

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 Payment for the Notes shall be made against delivery to you on the Closing Date for the
respective accounts of the several Underwriters of the Notes registered in such names and in such denominations as you shall request in writing not later than one full business day prior to the Closing Date, with any transfer taxes payable in
connection with the transfer of the Notes to the Underwriters duly paid. 
 5. Conditions to the Underwriters’
Obligations. The several obligations of the Underwriters are subject to the following conditions: 
 (a) Subsequent to the
execution and delivery of this Agreement and prior to the Closing Date: 
 (i) there shall not have occurred any
downgrading, nor shall any notice have been given of any intended or potential downgrading or of any review for a possible change that does not indicate the direction of the possible change, in the rating accorded any of the securities of the
Company or any of its subsidiaries by any “nationally recognized statistical rating organization,” as such term is defined for purposes of Rule 436(g)(2) under the Securities Act; and 
 (ii) there shall not have occurred any change, or any development involving a prospective change, in the condition, financial
or otherwise, or in the earnings, business or operations of the Company and its subsidiaries, taken as a whole, from that set forth in the Time of Sale Prospectus as of the date of this Agreement that, in your judgment, is material and adverse and
that makes it, in your judgment, impracticable to market the Notes on the terms and in the manner contemplated in the Time of Sale Prospectus. 
 (b) The Underwriters shall have received on the Closing Date a certificate, dated the Closing Date and signed by an executive officer of the Company, to the effect set forth in Section 5(a)(i) above
and to the effect that the representations and warranties of the Company contained in this Agreement are true and correct as of the Closing Date and that the Company has complied with all of the agreements and satisfied all of the conditions on its
part to be performed or satisfied hereunder on or before the Closing Date. 
 Any officer signing and delivering such
certificate may rely upon the best of his or her knowledge as to proceedings threatened. 
 (c) The Underwriters shall have
received on the Closing Date an opinion of Cravath, Swaine & Moore LLP, outside counsel for the Company, dated the Closing Date, in form and substance reasonably acceptable to the Underwriters. 
  

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 (d) The Underwriters shall have received on the Closing Date an opinion of E. Blake Hawk,
general counsel to the Company, dated the Closing Date, in form and substance reasonably acceptable to the Underwriters. 
 (e)
The Underwriters shall have received on the Closing Date an opinion of Skadden, Arps, Slate, Meagher & Flom LLP, counsel for the Underwriters, dated the Closing Date, in form and substance reasonably acceptable to the Underwriters.

 (f) The Underwriters shall have received, on each of the date hereof and the Closing Date, a letter dated the date hereof or
the Closing Date, as the case may be, in form and substance satisfactory to the Underwriters, from KPMG LLP, independent public accountants, containing statements and information of the type ordinarily included in accountants’ “comfort
letters” to underwriters with respect to the financial statements and certain financial information contained in the Time of Sale Prospectus and the Prospectus; provided that the letter delivered on the Closing Date shall use a
“cut-off date” not earlier than the date hereof. 
 (g) On or prior to the Closing Date, the Company shall have
furnished to the Representatives such further certificates and documents as the Representatives may reasonably request. 
 (h)
The Company shall have delivered executed copies of the Indenture and the Notes. 
 6. Covenants of the Company. The
Company covenants with each Underwriter as follows: 
 (a) To furnish to you, without charge, a signed copy of the Registration
Statement (including exhibits thereto and documents incorporated by reference therein) and to deliver to each of the Underwriters during the period mentioned in Section 6(e) or 6(f) below, as many copies of the Time of Sale Prospectus, the
Prospectus, any documents incorporated by reference therein and any supplements and amendments thereto or to the Registration Statement as you may reasonably request. 
 (b) Prior to the completion of this offering, before amending or supplementing the Registration Statement, the Time of Sale Prospectus or the Prospectus, to furnish to you a copy of each such proposed
amendment or supplement and not to file any such proposed amendment or supplement to which you reasonably object promptly after receipt thereof, and to file with the Commission within the applicable period specified in Rule 424(b) under the
Securities Act any prospectus required to be filed pursuant to such Rule. 
 (c) To furnish to you a copy of each proposed free
writing prospectus to be prepared by or on behalf of, used by, or referred to by the Company and not to use or refer to any proposed free writing prospectus to which you reasonably 
  

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 object, provided that, if in the reasonable opinion of counsel for the Company, any such amendment or
supplement shall be required by law or regulation to be used, that the Company shall be permitted to file such amendment or supplement after taking into account such comments as you may reasonably make on the content, form or other aspects of such
amendment or supplement. 
 (d) Not to take any action that would result in an Underwriter being required to file with the
Commission pursuant to Rule 433(d) under the Securities Act a free writing prospectus prepared by or on behalf of the Underwriter that the Underwriter otherwise would not have been required to file thereunder. 
 (e) If the Time of Sale Prospectus is being used to solicit offers to buy the Notes at a time when the Prospectus is not yet available to
prospective purchasers and any event shall occur or condition exist as a result of which it is necessary to amend or supplement the Time of Sale Prospectus in order to make the statements therein, in the light of the circumstances, not misleading,
or if any event shall occur or condition exist as a result of which the Time of Sale Prospectus conflicts with the information contained in the Registration Statement then on file, or if, in the reasonable opinion of counsel for the Company, it is
necessary to amend or supplement the Time of Sale Prospectus to comply with applicable law, forthwith to prepare, file with the Commission and furnish, at its own expense, to the Underwriters and to the dealers (whose names and addresses you will
furnish to the Company) to which Notes may have been sold by you on behalf of the Underwriters, either amendments or supplements to the Time of Sale Prospectus so that the statements in the Time of Sale Prospectus as so amended or supplemented will
not, in the light of the circumstances when the Time of Sale Prospectus is delivered to a prospective purchaser, be misleading or so that the Time of Sale Prospectus, as amended or supplemented, will no longer conflict with the Registration
Statement, or so that the Time of Sale Prospectus, as amended or supplemented, will comply with applicable law. 
 (f) If,
during such period after the first date of the public offering of the Notes as in the reasonable opinion of counsel for the Underwriters the Prospectus (or in lieu thereof the notice referred to in Rule 173(a) of the Securities Act) is required by
law to be delivered in connection with sales by an Underwriter or dealer, any event shall occur or condition exist as a result of which it is necessary to amend or supplement the Prospectus in order to make the statements therein, in the light of
the circumstances when the Prospectus (or in lieu thereof the notice referred to in Rule 173(a) of the Securities Act) is delivered to a purchaser, not misleading, or if, in the reasonable opinion of counsel for the Underwriters, it is necessary to
amend or supplement the Prospectus to comply with applicable law, forthwith to prepare, file with the Commission and furnish, at its own expense, to the Underwriters and to the dealers (whose names and addresses you will furnish to the Company) to
which Notes may have been sold by you on behalf of the Underwriters and to any other dealers upon request, either amendments or supplements to the Prospectus so that the statements in the 
  

 13 

 Prospectus as so amended or supplemented will not, in the light of the circumstances when the Prospectus (or
in lieu thereof the notice referred to in Rule 173(a) of the Securities Act) is delivered to a purchaser, be misleading or so that the Prospectus, as amended or supplemented, will comply with applicable law. 
 (g) To endeavor to qualify the Notes for offer and sale under the securities or Blue Sky laws of such jurisdictions as you shall reasonably
request; provided that the Company shall not be required to (i) qualify as a foreign corporation or other entity or as a dealer in securities in any such jurisdiction where it would not otherwise be required to so qualify, (ii) file
any general consent to service of process in any such jurisdiction or (iii) subject itself to taxation in any such jurisdiction if it is not otherwise so subject. 
 (h) The Company will apply the net proceeds from the sale of the Notes as described in each of the Time of Sale Prospectus and the Final Prospectus under the heading “Use of Proceeds.”

 (i) To make generally available to the Company’s security holders and to you as soon as practicable an earnings
statement covering a period of at least twelve months beginning with the first fiscal quarter of the Company occurring after the date of this Agreement which shall satisfy the provisions of Section 11(a) of the Securities Act and the rules and
regulations of the Commission thereunder. 
 (j) Whether or not the transactions contemplated in this Agreement are consummated
or this Agreement is terminated, the Company agrees to pay or cause to be paid all reasonable expenses incident to the performance of its obligations under this Agreement, including: (i) the fees, disbursements and expenses of the
Company’s counsel and the Company’s accountants in connection with the registration and delivery of the Notes under the Securities Act and all other fees or expenses in connection with the preparation and filing of the Registration
Statement, any preliminary prospectus, the Time of Sale Prospectus, the Prospectus, any free writing prospectus prepared by or on behalf of, used by, or referred to by the Company and amendments and supplements to any of the foregoing, including the
filing fees payable to the Commission relating to the Notes (within the time required by Rule 456 (b)(1), if applicable), all printing costs associated therewith, and the mailing and delivering of copies thereof to the Underwriters and dealers, in
the quantities hereinabove specified, (ii) all costs and expenses related to the transfer and delivery of the Notes to the Underwriters, including any transfer or other taxes payable thereon, (iii) the cost of printing or producing any
Blue Sky or legal investment memorandum in connection with the offer and sale of the Notes under state securities laws and all expenses in connection with the qualification of the Notes for offer and sale under state securities laws as provided in
Section 6(g) hereof, including filing fees and the reasonable fees and disbursements of counsel for the Underwriters in connection with such qualification and in connection with the Blue Sky or legal investment 
  

 14 

 memorandum, (iv) all filing fees and the reasonable fees and disbursements of counsel to the
Underwriters incurred in connection with the review and qualification of the offering of the Notes by the Financial Industry Regulatory Authority, (v) any fees charged by the rating agencies for the rating of the Notes, (vi) the cost of
the preparation, issuance and delivery of the Notes, (vii) the costs and charges of any trustee, transfer agent, registrar or depositary, (viii) the costs and expenses of the Company relating to investor presentations on any “road
show” undertaken in connection with the marketing of the offering of the Notes, including, without limitation, expenses associated with the preparation or dissemination of any electronic road show, expenses associated with the production of
road show slides and graphics, fees and expenses of any consultants engaged in connection with the road show presentations with the prior approval of the Company, travel and lodging expenses of the representatives and officers of the Company and any
such consultants, and the cost of any aircraft chartered in connection with the road show, (ix) the document production charges and expenses associated with printing this Agreement, (x) all expenses in connection with any offer and sale of
the Notes outside of the United States, including filing fees and the reasonable fees and disbursements of counsel for the Underwriters in connection with offers and sales outside of the United States and (xi) all other costs and expenses
incident to the performance of the obligations of the Company hereunder for which provision is not otherwise made in this Section. It is understood, however, that except as provided in this Section, Section 8 entitled “Indemnity and
Contribution,” and the last paragraph of Section 10 below, the Underwriters will pay all of their costs and expenses, including fees and disbursements of their counsel, transfer taxes payable on resale of any of the Notes by them and any
advertising expenses connected with any offers they may make. 
 (k) If the third anniversary of the initial effective date of
the Registration Statement occurs before all the Notes have been sold by the Underwriters, prior to the third anniversary to file a new shelf registration statement and to take any other action necessary to permit the public offering of the Notes to
continue without interruption; references herein to the Registration Statement shall include the new registration statement declared effective by the Commission. 
 (l) During the period beginning on the date hereof and continuing to and including the Closing Date, not to offer, sell, contract to sell or otherwise dispose of any debt securities of the Company or
warrants to purchase or otherwise acquire debt securities of the Company substantially similar to the Notes (other than (i) the Notes, (ii) commercial paper issued in the ordinary course of business or (iii) securities or warrants
permitted with the prior written consent of the Managers identified in Schedule I hereto with the authorization to release this lock-up on behalf of the Underwriters). 
  

 15 

 (m) To prepare a final term sheet relating to the offering of the Notes, containing only
information that describes the final terms of the Notes or the offering in a form consented to by the Managers, and to file such final term sheet within the period required by Rule 433(d)(5)(ii) under the Securities Act following the date the final
terms have been established for the offering of the Notes. 
 7. Covenants of the Underwriters. Each Underwriter
severally covenants with the Company not to take any action that would result in the Company being required to file with the Commission under Rule 433(d) a free writing prospectus prepared by or on behalf of such Underwriter that otherwise would not
be required to be filed by the Company thereunder, but for the action of the Underwriter. 
 8. Indemnity and
Contribution. (a) The Company agrees to indemnify and hold harmless each Underwriter, each person, if any, who controls any Underwriter within the meaning of either Section 15 of the Securities Act or Section 20 of the Exchange
Act and each affiliate of any Underwriter within the meaning of Rule 405 under the Securities Act from and against any and all losses, claims, damages and liabilities (including, without limitation, any legal or other expenses reasonably
incurred in connection with defending or investigating any such action or claim) caused by any untrue statement or alleged untrue statement of a material fact contained in the Registration Statement or any amendment thereto, any preliminary
prospectus, the Time of Sale Prospectus, any issuer free writing prospectus as defined in Rule 433(h) under the Securities Act, any Company information that the Company has filed, or is required to file, pursuant to Rule 433(d) under the Securities
Act or the Prospectus or any amendment or supplement thereto, or caused by any omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, except insofar as
such losses, claims, damages or liabilities are caused by any such untrue statement or omission or alleged untrue statement or omission based upon information relating to any Underwriter furnished to the Company in writing by such Underwriter
through you expressly for use therein, it being understood and agreed that the only such information furnished by the Underwriters consists of the information described in clause (b) below. 
 (b) Each Underwriter agrees, severally and not jointly, to indemnify and hold harmless the Company, the directors of the Company, the
officers of the Company who sign the Registration Statement and each person, if any, who controls the Company within the meaning of either Section 15 of the Securities Act or Section 20 of the Exchange Act from and against any and all
losses, claims, damages and liabilities (including, without limitation, any legal or other expenses reasonably incurred in connection with defending or investigating any such action or claim) caused by any untrue statement or alleged untrue
statement of a material fact contained in the Registration Statement or any amendment 
  

 16 

 thereto, any preliminary prospectus, the Time of Sale Prospectus, any issuer free writing prospectus as
defined in Rule 433(h) under the Securities Act, any Company information that the Company has filed, or is required to file, pursuant to Rule 433(d) of the Securities Act, or the Prospectus (as amended or supplemented if the Company shall have
furnished any amendments or supplements thereto), or caused by any omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, but only with reference to
information relating to such Underwriter furnished to the Company in writing by such Underwriter through you expressly for use in the Registration Statement, any preliminary prospectus, the Time of Sale Prospectus, any issuer free writing prospectus
or the Prospectus or any amendment or supplement thereto, it being understood and agreed that the only such information furnished by any Underwriter consists of the information in the fourth, sixth, seventh, eighth and ninth paragraphs of the
Underwriting section in the preliminary prospectus and the Prospectus. 
 (c) In case any proceeding (including any governmental
investigation) shall be instituted involving any person in respect of which indemnity may be sought pursuant to Section 8(a) or 8(b), such person (the “indemnified party”) shall promptly notify the person against whom such
indemnity may be sought (the “indemnifying party”) in writing and the indemnifying party, upon request of the indemnified party, shall retain counsel reasonably satisfactory to the indemnified party to represent the indemnified
party and any others the indemnifying party may designate in such proceeding and shall pay the fees and disbursements of such counsel related to such proceeding. In any such proceeding, any indemnified party shall have the right to retain its own
counsel, but the fees and expenses of such counsel shall be at the expense of such indemnified party unless (i) the indemnifying party and the indemnified party shall have mutually agreed to the retention of such counsel or (ii) the named
parties to any such proceeding (including any impleaded parties) include both the indemnifying party and the indemnified party and representation of both parties by the same counsel would be inappropriate due to actual or potential differing
interests between them. It is understood that the indemnifying party shall not, in respect of the legal expenses of any indemnified party in connection with any proceeding or related proceedings in the same jurisdiction, be liable for (i) the
fees and expenses of more than one separate firm (in addition to one local counsel in each jurisdiction) for all Underwriters and all persons, if any, who control any Underwriter within the meaning of either Section 15 of the Securities Act or
Section 20 of the Exchange Act or who are affiliates of any Underwriter within the meaning of Rule 405 under the Securities Act and (ii) the fees and expenses of more than one separate firm (in addition to one local counsel in each
jurisdiction) for the Company, its directors, its officers who sign the Registration Statement and each person, if any, who controls the Company within the meaning of either such Section, and that all such fees and expenses shall be reimbursed as
they are incurred. In the case of any such separate firm for the Underwriters and such control persons and affiliates of any Underwriters, such firm shall be designated 
  

 17 

 in writing by Barclays Capital Inc. In the case of any such separate firm for the Company, and such
directors, officers and control persons of the Company, such firm shall be designated in writing by the Company. The indemnifying party shall not be liable for any settlement of any proceeding effected without its written consent, but if settled
with such consent or if there be a final judgment for the plaintiff, the indemnifying party agrees to indemnify the indemnified party from and against any loss or liability by reason of such settlement or judgment. No indemnifying party shall,
without the prior written consent of the indemnified party, effect any settlement of any pending or threatened proceeding in respect of which any indemnified party is or could have been a party and indemnity could have been sought hereunder by such
indemnified party, unless (i) such settlement includes an unconditional release of such indemnified party from all liability on claims that are the subject matter of such proceeding and (ii) does not include a statement as to, or an
admission of, fault, culpability or a failure to act by or on behalf of an indemnified party. 
 (d) To the extent the
indemnification provided for in Section 8(a) or 8(b) is unavailable to an indemnified party or insufficient in respect of any losses, claims, damages or liabilities referred to therein, then each indemnifying party under such paragraph, in lieu
of indemnifying such indemnified party thereunder, shall contribute to the amount paid or payable by such indemnified party as a result of such losses, claims, damages or liabilities (i) in such proportion as is appropriate to reflect the
relative benefits received by the Company on the one hand and the Underwriters on the other hand from the offering of the Notes or (ii) if the allocation provided by clause 8(d)(i) above is not permitted by applicable law, in such
proportion as is appropriate to reflect not only the relative benefits referred to in clause 8(d)(i) above but also the relative fault of the Company on the one hand and of the Underwriters on the other hand in connection with the statements or
omissions that resulted in such losses, claims, damages or liabilities, as well as any other relevant equitable considerations. The relative benefits received by the Company on the one hand and the Underwriters on the other hand in connection with
the offering of the Notes shall be deemed to be in the same respective proportions as the net proceeds from the offering of the Notes (before deducting expenses) received by the Company and the total underwriting discounts and commissions received
by the Underwriters bear to the aggregate initial public offering price of the Notes as set forth in the Prospectus. The relative fault of the Company on the one hand and the Underwriters on the other hand shall be determined by reference to, among
other things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information supplied by the Company or by the Underwriters and the parties’ relative intent,
knowledge, access to information and opportunity to correct or prevent such statement or omission. The Underwriters’ respective obligations to contribute pursuant to this Section 8 are several in proportion to the respective principal
amounts of Notes they have purchased hereunder, and not joint. 
  

 18 

 (e) The Company and the Underwriters agree that it would not be just or equitable if
contribution pursuant to this Section 8 were determined by pro rata allocation (even if the Underwriters were treated as one entity for such purpose) or by any other method of allocation that does not take account of the equitable
considerations referred to in Section 8(d). The amount paid or payable by an indemnified party as a result of the losses, claims, damages and liabilities referred to in Section 8(d) shall be deemed to include, subject to the limitations
set forth above, any legal or other expenses reasonably incurred by such indemnified party in connection with investigating or defending any such action or claim. Notwithstanding the provisions of this Section 8, no Underwriter shall be
required to contribute any amount in excess of the amount by which the total price at which the Notes underwritten by it and distributed to the public were offered to the public exceeds the amount of any damages that such Underwriter has otherwise
been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to
contribution from any person who was not guilty of such fraudulent misrepresentation. The remedies provided for in this Section 8 are not exclusive and shall not limit any rights or remedies which may otherwise be available to any indemnified
party at law or in equity. 
 (f) The indemnity and contribution provisions contained in this Section 8 and the
representations, warranties and other statements of the Company contained in this Agreement shall remain operative and in full force and effect regardless of (i) any termination of this Agreement, (ii) any investigation made by or on
behalf of any Underwriter, any person controlling any Underwriter or any affiliate of any Underwriter or by or on behalf of the Company, its officers or directors or any person controlling the Company and (iii) acceptance of and payment for any
of the Notes. 
 9. Termination. The Underwriters may terminate this Agreement by notice given by you to the Company, if
after the execution and delivery of this Agreement and prior to the Closing Date (i) trading generally shall have been suspended or materially limited on, or by, as the case may be, any of the New York Stock Exchange or the NASDAQ Global
Market, (ii) trading of any securities of the Company shall have been suspended on any exchange or in any over-the-counter market, (iii) a material disruption in securities settlement, payment or clearance services in the United States
shall have occurred, (iv) any moratorium on commercial banking activities shall have been declared by Federal or New York State authorities or (v) there shall have occurred any outbreak or escalation of hostilities, or any change in
financial markets or any calamity or crisis that, in your judgment, is material and adverse and which, singly or together with any other event specified in this clause (v), makes it, in your judgment, impracticable or inadvisable to proceed
with the offer, sale or delivery of the Notes on the terms and in the manner contemplated in the Time of Sale Prospectus or the Prospectus. 
  

 19 

 10. Effectiveness; Defaulting Underwriters. This Agreement shall become effective
upon the execution and delivery hereof by the parties hereto. 
 If, on the Closing Date, any one or more of the Underwriters
shall fail or refuse to purchase Notes that it has or they have agreed to purchase hereunder on such date, and the aggregate principal amount of Notes which such defaulting Underwriter or Underwriters agreed but failed or refused to purchase is not
more than one-tenth of the aggregate principal amount of the Notes to be purchased on such date, the other Underwriters shall be obligated severally in the proportions that the principal amount of Notes set forth opposite their respective names in
Schedule II hereto bears to the aggregate principal amount of Notes set forth opposite the names of all such non-defaulting Underwriters, or in such other proportions as you may specify, to purchase the Notes which such defaulting Underwriter
or Underwriters agreed but failed or refused to purchase on such date; provided that in no event shall the principal amount of Notes that any Underwriter has agreed to purchase pursuant to this Agreement be increased pursuant to this
Section 10 by an amount in excess of one-ninth of such principal amount of Notes without the written consent of such Underwriter. If, on the Closing Date, any Underwriter or Underwriters shall fail or refuse to purchase Notes which it or they
have agreed to purchase hereunder on such date and the aggregate principal amount of Notes with respect to which such default occurs is more than one-tenth of the aggregate principal amount of Notes to be purchased on such date, and arrangements
satisfactory to you and the Company for the purchase of such Notes are not made within 36 hours after such default, this Agreement shall terminate without liability on the part of any non-defaulting Underwriter or the Company. In any such case
either you or the Company shall have the right to postpone the Closing Date, but in no event for longer than seven days, in order that the required changes, if any, in the Registration Statement, in the Time of Sale Prospectus, in the Prospectus or
in any other documents or arrangements may be effected. Any action taken under this paragraph shall not relieve any defaulting Underwriter from liability in respect of any default of such Underwriter under this Agreement. 
 If this Agreement shall be terminated by the Underwriters, or any of them, because of any failure or refusal on the part of the Company to
comply with the terms or to fulfill any of the conditions of this Agreement, or if for any reason the Company shall be unable to perform its obligations under this Agreement the Company will reimburse the Underwriters or such Underwriters as have so
terminated this Agreement with respect to themselves, severally, for all out-of-pocket expenses (including the fees and disbursements of their counsel) reasonably incurred by such Underwriters in connection with this Agreement or the offering
contemplated hereunder. 
 11. Entire Agreement. (a) This Agreement, together with any contemporaneous written
agreements and any prior written agreements (to the extent not superseded by this Agreement) that relate to the offering of the Notes,

  

 20 

 
represents the entire agreement between the Company and the Underwriters with respect to the preparation of any preliminary prospectus, the Time of Sale Prospectus, the Prospectus, the conduct of
the offering, and the purchase and sale of the Notes. 
 (b) The Company acknowledges that in connection with the offering of
the Notes: (i) the Underwriters have acted at arms length, are not agents of, and owe no fiduciary duties to, the Company or any other person, (ii) the Underwriters owe the Company only those duties and obligations set forth in this
Agreement and prior written agreements (to the extent not superseded by this Agreement), if any, and (iii) the Underwriters may have interests that differ from those of the Company. The Company waives to the full extent permitted by applicable
law any claims it may have against the Underwriters arising from an alleged breach of fiduciary duty in connection with the offering of the Notes. 
 12. Counterparts. This Agreement may be signed in two or more counterparts, each of which shall be an original, with the same effect as if the signatures thereto and hereto were upon the same
instrument. 
 13. Applicable Law. This Agreement shall be governed by and construed in accordance with the internal laws
of the State of New York. 
 14. Headings. The headings of the sections of this Agreement have been inserted for
convenience of reference only and shall not be deemed a part of this Agreement. 
 15. Notices. All communications
hereunder shall be in writing and effective only upon receipt and if to the Underwriters shall be delivered, mailed or sent to you at the address set forth in Schedule I hereto; and if to the Company shall be delivered, mailed or sent to the
address set forth in Schedule I hereto. 
  

 21 

			
	Very truly yours,
	
	CROWN CASTLE INTERNATIONAL CORP.
		
	By:	 	 /s/    Jay Brown

	Name:	 	Jay Brown
	Title:	 	SVP, CFO & Treasurer

			
	Accepted as of the date hereof
	
	 BARCLAYS CAPITAL INC.
 RBS SECURITIES INC.

	
	 Acting severally on behalf of themselves and the
 several Underwriters named in Schedule II hereto

		
	By:	 	BARCLAYS CAPITAL INC.
		
	By:	 	 /s/    Robert H. Chen

	Name:	 	Robert H. Chen
	Title:	 	Managing Director
		
	By:	 	RBS SECURITIES INC.
		
	By:	 	 /s/    Michael F. Newcomb II

	Name:	 	Michael F. Newcomb II
	Title:	 	Managing DirectorExhibit 10.7

 Exhibit 10.7 
 Resolutions of the Compensation Committee of Danaher Corporation 
 Re: Philip W. Knisely Stock Options 
 WHEREAS, the following options to purchase shares of
Danaher common stock have previously been granted to Philip W. Knisely under Danaher’s 1998 Stock Option Plan (the “Plan”): 150,000 stock options with a grant date of March 4, 2003; 150,000 stock options with a grant date of
June 27, 2003; 150,000 stock options with a grant date of September 26, 2003; and 78,580 stock options with a grant date of February 23, 2006 (collectively, the “Options”); and 
 WHEREAS, the 1998 Stock Option Plan provides that upon termination of employment (for any reason other than death, Disability,
Retirement or Gross Misconduct (each as defined in the Plan)) any options that are exercisable as of the termination date remain exercisable until the earlier of the 90th day after termination or the expiration of the option term, and the Compensation Committee of Danaher’s Board of
Directors desires to amend the terms of the Options to replace the 90-day post-termination exercise period referred to above with a post-termination exercise period of 180 days. 
 NOW THEREFORE, BE IT RESOLVED, that the terms of the Options are hereby amended to provide that upon Mr. Knisely’s termination of employment (for any reason other than death, Disability,
Retirement or Gross Misconduct (each as defined in the Plan)), with respect to any Options that are exercisable as of such termination date, such Options shall remain exercisable until the earlier of 180 days after termination of employment or the
expiration of the applicable Option term (subject to the Plan provisions relating to compliance with post-employment covenants).

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