Form of Officers Certificate related to 3.600% Senior Notes due 2051, containing Form of 3.600% Senior Notes due 2051 as Exhibit A

Pursuant to Sections 1.2, 3.1 and 3.3 of the Indenture, dated as of May 1, 2004 (the “Indenture”), among Assured Guaranty US Holdings Inc. (the “Company”), Assured Guaranty Ltd. (the “Guarantor”) and The Bank of New York Mellon (formerly known as The Bank of New York), as trustee (the “Trustee”), Robert A. Bailenson, Chief Financial Officer of the Company, hereby certifies as follows:

I.    The issuance of a series of Securities designated as 3.600% Senior Notes due 2051 in an aggregate principal amount of $400,000,000 (the “Securities”) has been approved and authorized in accordance with the provisions of the Indenture pursuant to resolutions duly adopted by the Board of Directors of the Company and the Guarantor on August 4, 2021 and August 11, 2021, respectively. The terms of the Securities shall be as follows:

(a)    The title of the Securities is “3.600% Senior Notes due 2051.”

(b)    The aggregate principal amount of Securities which may be authenticated and delivered under the Indenture is initially limited to $400,000,000, except for Securities authenticated and delivered upon registration of transfer of, or in exchange for, or in lieu of, other Securities pursuant to Sections 3.4, 3.5, 3.6, 9.5 or 11.7 of the Indenture.

(c)    The Securities will be issued in book-entry form, in denominations of $2,000 or any amount in excess thereof which is an integral multiple of $1,000, and represented by a registered global Security substantially in the form attached hereto as Exhibit A delivered to The Depository Trust Company (the “Depositary”), or a custodian on the Depositary’s behalf, and recorded in the book-entry system maintained by the Depositary.

(d)    The principal amount of the Securities shall be due and payable on September 15, 2051.

(e)    The principal of the Securities shall bear interest from August 20, 2021 or from the most recent Interest Payment Date (as defined below) to which interest has been paid or duly provided for, payable semi-annually on March 15 and September 15 of each year (each, an “Interest Payment Date”), commencing March 15, 2022, to the Persons in whose names the Securities (or one or more Predecessor Securities) are registered at the close of business on the March 1 or September 1, as the case may be, preceding such Interest Payment Dates.

(f)    Interest on the Securities will accrue at the rate of 3.600% per annum from August 20, 2021 until the principal thereof is paid or made available for payment.

(g)    The principal of, interest on and any Additional Amounts with respect to the Securities shall be payable and the Securities may be surrendered or presented for payment, the Securities may be surrendered for registration of transfer or exchange, and notices and demands to or upon the Company or the Guarantor in respect of the Securities and the Indenture may be served, at the office or agency of the Company and the Guarantor maintained for such purposes in The City of New York, State of New York from time to time, and the Company hereby appoints the Trustee, acting through its office or agency in The City of New York designated from time to time for such purpose, as its agent for the foregoing purposes; provided, however, that at the option of the Company payment of interest may be made by check mailed to the address of the Holders entitled thereto, as such addresses shall appear in the Security Register for the Securities; and provided, further, that (subject to Section 10.2 of the Indenture) the Company may at any time remove the Trustee as its office or agency in The City of New York designated for the foregoing purposes and may from time to time designate one or more other offices or agencies for the foregoing purposes and may from time to time rescind such designations.

(h)    The Securities shall be redeemable at the option of the Company prior to the Stated Maturity as described in Exhibit A, and are not subject to a sinking fund or analogous provision.

(i)    Payments of principal, interest on and any Additional Amounts with respect to the Securities shall be made in such coin or currency of the United States of America as at the time of payment shall be legal tender for the payment of public and private debts.

(j)    The Trustee shall be Security Registrar and the initial Paying Agent and initial transfer agent for the Securities (subject to the Company’s right (subject to Section 10.2 of the Indenture) to remove the Trustee as such Paying Agent and/or transfer agent and, from time to time, to designate one or more coregistrars and one or more other Paying Agents and transfer agents and to rescind from time to time any such designations), and The City of New York is designated as a Place of Payment for the Securities.

(k)    Additional Amounts shall be payable in respect of the Securities on the terms and subject to the conditions set forth in Section 10.4 of the Indenture and in the Securities. Whenever in this Officer’s Certificate or in the certificate evidencing the Securities there is mentioned, in any context, the payment of principal, interest or any other amount payable under or with respect to such Security, such mention shall be deemed to include mention of the payment of Additional Amounts to the extent that, in such context, Additional Amounts are, were or would be payable in respect thereof.

(l)     Application has been made to list the Securities on the New York Stock Exchange. Neither the Company nor Guarantor has any obligation to maintain such listing and may delist the Securities at any time.

(m)    The Securities shall have such additional terms and provisions as are set forth in Exhibit A hereto, all of which terms and provisions are incorporated by reference in and made a part of this Officer’s Certificate as if set forth in full herein.

II.    To the best knowledge of the undersigned, all conditions precedent to the execution, authentication and delivery of the Securities described herein have been complied with, and no event which is, or after notice or lapse of time would become, an Event of Default with respect to the Securities has occurred and is continuing.

The undersigned states that he has read and is familiar with the provisions of Article III of the Indenture relating to the issuance of Securities thereunder; that he is generally familiar with the other provisions of the Indenture and with the affairs of the Company, the Guarantor and their corporate acts and proceedings; and that, in his opinion, he has made such examination or investigation as is necessary to enable him to express an informed opinion as to whether or not the conditions referred to above have been complied with.

Insofar as this certificate relates to legal matters, it is based, as provided for in Section 3.3 of the Indenture, upon the Opinion of Counsel delivered to the Trustee contemporaneously herewith pursuant to Section 3.3 of the Indenture and relating to the Securities described herein.

Capitalized terms used herein and not otherwise defined herein have the meanings specified in the Indenture.

Dated: August 20, 2021

Assured Guaranty US Holdings Inc., a Delaware corporation (hereinafter called the “Company,” which term includes any successor corporation under the Indenture referred to below), for value received, hereby promises to pay to Cede & Co., or registered assigns, the principal sum of FOUR HUNDRED MILLION DOLLARS ($400,000,000) on September 15, 2051 and to pay interest thereon from August 20, 2021 or from the most recent interest payment date to which interest has been paid or duly provided for, payable semi-annually on March 15 and September 15 in each year (each, an “Interest Payment Date”), commencing March 15, 2022, at the rate of 3.600% per annum, until the principal hereof (and any Additional Amounts (as defined below)) is paid or duly made available for payment. Interest on this Note shall be

computed on the basis of a 360-day year of twelve 30-day months. If any Interest Payment Date or the maturity date falls on a day that is not a Business Day, the required payment shall be made on the next Business Day as if it were made 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 the maturity date, as the case may be, to such next Business Day. 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 Person in whose name this Note (or one or more Predecessor Securities) is registered at the close of business on the Regular Record Date for such interest, which shall be March 1 or September 1 (whether or not a Business Day), as the case may be, next preceding such Interest Payment Date. Any such interest which is payable, but is not punctually paid or duly provided for, on any Interest Payment Date shall forthwith cease to be payable to the registered Holder hereof on the relevant Regular Record Date by virtue of having been such Holder, and may be paid to the Person in whose name this Note (or one or more Predecessor Securities) is registered at the close of business on a subsequent Special Record Date (which shall be at least 10 days before the payment date) for the payment of such defaulted interest to be fixed by the Company, notice whereof shall be given to the Holders of Notes 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 Notes may be listed, and upon such notice as may be required by such exchange, all as more fully provided in such Indenture. Any interest paid on this Note shall be increased to the extent necessary to pay Additional Amounts as set forth in this Note.

Payment of the principal of, interest on or any Redemption Price or Additional Amounts in respect of this Note will be made at the office or agency of the Company and the Guarantor (as defined below) maintained for that purpose in The Borough of Manhattan, The City of New York, in such coin or currency of the United States of America as at the time of payment is legal tender for payment of public and private debts; provided, however, that, at the option of the Company or the Guarantor, interest may be paid by check mailed to the address of the Person entitled thereto as such address shall appear in the Security Register; provided, further, that payment to DTC or any successor Depository may be made by wire transfer to the account designated by DTC or such successor depository in writing.

This Note is one of a duly authorized issuance of securities of the Company (herein called the “Notes”), fully and unconditionally guaranteed as to payment of principal, premium, if any, and interest by Assured Guaranty Ltd., a Bermuda company (the “Guarantor”), issued and to be issued in one or more series under an Indenture, dated as of May 1, 2004 (the “Indenture”), among the Company, the Guarantor and The Bank of New York Mellon (formerly known as The Bank of New York), a New York banking corporation as trustee (the “Trustee”), to which the Indenture and all indentures supplemental thereto referenced 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 Notes, and of the terms upon which the Notes are, and are to be, authenticated and delivered. This Note is one of the series designated on the face hereof, initially limited (subject to exceptions provided in the Indenture) to the aggregate principal amount specified in the Officer’s Certificate, dated as of August 20, 2021, establishing the terms of the Notes pursuant to the Indenture.

The Notes are senior unsecured obligations of the Company. The Company’s obligation to pay the principal of, interest on or any Additional Amounts in respect of the Notes (together with all other obligations of the Company under the Indenture) is unconditionally guaranteed on a senior unsecured basis by the Guarantor pursuant to Article 16 of the Indenture. Any obligation of the Guarantor to pay Additional Amounts in respect of the Notes (in respect of withholding of any present or future taxes or governmental charges imposed by Bermuda or the United Kingdom) shall be subject to the limitations described in Article 16.2 of the Indenture (it being understood that such limitations are read to apply to taxes and governmental charges imposed by Bermuda and the United Kingdom, as applicable).  In addition, the Guarantor shall not be required to pay Additional Amounts in the event that any tax is imposed on payments on the Notes under sections 1471 through 1474 of the Internal Revenue Code, any current or future regulations thereunder and official interpretations thereof, any agreements entered into pursuant to section 1471(b)(1) of the Internal Revenue Code and any fiscal or regulatory legislation, rules or official practices adopted pursuant to any published intergovernmental agreement entered into in connection with the implementation of such sections of the Internal Revenue Code.

If an Event of Default with respect to the Notes shall occur and be continuing, the principal of the Notes may be declared due and payable in the manner and with the effect provided in the Indenture.

The Indenture contains provisions permitting, with certain exceptions as therein provided, the amendment thereof and the modification of the rights and obligations of the Company or the Guarantor and the rights of the Holders of the Securities of each series issued under the Indenture at any time by the Company, the Guarantor and the Trustee with the written consent of the Holders of not less than a majority in aggregate principal amount of the Securities at the time Outstanding of each series affected thereby. The Indenture also contains provisions permitting the Holders of specified percentages in aggregate principal amount of the Securities of any series at the time Outstanding, on behalf of the Holders of all Securities of such series, to waive compliance by the Company or the Guarantor with certain provisions of the Indenture and certain past defaults under the Indenture and their consequences. Any such consent or waiver by the Holder of this Note shall be conclusive and binding upon such Holder and upon all future Holders of this Note and of any Notes 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 Note.

This Note is not subject to any sinking fund.

No reference herein to the Indenture and no provision of this Note or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of, interest on or any Redemption Price or any Additional Amounts in respect of this Note, at the times, place and rate, and in the coin or currency, herein and in the Indenture prescribed.

As provided in the Indenture and subject to certain limitations set forth therein and in this Note, the transfer of this Note may be registered on the Security Register upon surrender of this

Note for registration of transfer at the office or agency of the Company and the Guarantor maintained for that purpose in any place where the principal of, interest on or any Additional Amounts in respect of this Note 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 Notes of this series and of like tenor, of authorized denominations and for the same aggregate principal amount, will be issued to the designated transferee or transferees.

The Notes are issuable only in registered form without coupons in the denominations specified in the Officer’s Certificate, dated as of August 20, 2021, establishing the terms of the Notes, all as more fully provided in the Indenture and such Officer’s Certificate. As provided in the Indenture and in such Officer’s Certificate, and subject to certain limitations set forth in the Indenture, such Officer’s Certificate and in this Note, the Notes are exchangeable for a like aggregate principal amount of Notes of this series in different authorized denominations, as requested by the Holders surrendering the same.

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, other than in certain cases provided in the Indenture.

Prior to due presentment of this Note for registration of transfer, the Company, the Guarantor, the Trustee and any agent of the Company, the Guarantor or the Trustee may treat the Person in whose name this Note is registered as the owner hereof for all purposes, whether or not this Note be overdue, and neither the Company, the Guarantor, the Trustee nor any such agent shall be affected by notice to the contrary.

This Note is redeemable as a whole at any time or in part from time to time, prior to March 15, 2051 (the “Par Call Date”), at the Company’s option at any time, at a Redemption Price equal to the greater of:

(i)    100% of the principal amount of this Note to be redeemed; and

(ii)     the sum of the present values of the remaining scheduled payments of principal and interest thereon (excluding interest accrued to the Redemption Date) that would be due if this Note matured on the Par Call Date and discounted to the Redemption Date on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the applicable Treasury Rate plus 30 basis points,

plus, in each case, accrued and unpaid interest on the principal amount being redeemed to but excluding the Redemption Date. The Trustee shall not be responsible for calculating the redemption price.

“Treasury Rate” means, with respect to any Redemption Date, (1) the yield, under the heading which represents the average for the immediately preceding week, appearing in the most recently published statistical release designated “H.15” or any successor publication which is published weekly by the Board of Governors of the Federal Reserve System and which establishes yields on actively traded United States Treasury securities adjusted to constant maturity under the caption “Treasury Constant Maturities,” for the maturity corresponding to the Comparable Treasury Issue (if no maturity is within three months before or after the Remaining Life, yields for the two published maturities most closely corresponding to the Comparable Treasury Issue will be determined and the Treasury Rate will be interpolated or extrapolated from such yields on a straight line basis, rounding to the nearest month) or (2) if such release (or any successor release) is not published during the week preceding the calculation date or does not contain such yields, the rate per year equal to the semi-annual equivalent yield-to-maturity of the Comparable Treasury Issue, calculated using a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury Price for such Redemption Date. The Treasury Rate will be calculated on the third Business Day preceding the Redemption Date.

    “Business Day” means any day other than a Saturday, Sunday or other day on which banking institutions in The City of New York are authorized or obligated by law, regulation or executive order to close.

“Comparable Treasury Issue” means the United States Treasury security selected by an Independent Investment Banker as having a maturity comparable to the remaining term of the Notes to be redeemed.

“Comparable Treasury Price” means (1) the average of four Reference Treasury Dealer Quotations for such Redemption Date, after excluding the highest and lowest Reference Treasury Dealer Quotations, or (2) if the Independent Investment Banker obtains fewer than four such Reference Treasury Dealer Quotations, the average of all such quotations.

“Independent Investment Banker” means BofA Securities, Inc. or Goldman Sachs & Co. LLC or either of their respective successors, as may be appointed from time to time by the Company or, if neither such firm is willing or able to select the Comparable Treasury Issue, an independent investment banking institution of national standing appointed by the Company.

“Reference Treasury Dealer” means each of (1) BofA Securities, Inc., Goldman Sachs & Co. LLC and their respective successors, and (2) two other Primary Treasury Dealers selected by the Company; provided, however, that if any of the foregoing shall cease to be a primary U.S. Government securities dealer in New York City (a “Primary Treasury Dealer”), the Company will substitute another Primary Treasury Dealer.

“Reference Treasury Dealer Quotations” means, with respect to each Reference Treasury Dealer and any Redemption Date, the average, as determined by the Independent Investment Banker, of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount) quoted in writing to the Independent Investment Banker at 5:00 p.m., New York City time, on the third Business Day preceding such Redemption Date.

All payments on this Note will be made without withholding of any present or future taxes or governmental charges of Bermuda or the United Kingdom (each, a “Taxing Jurisdiction”), unless the Company or the Guarantor is required to do so by applicable law or regulation.

If the Company or the Guarantor is required to withhold amounts under the laws or regulations of a Taxing Jurisdiction, it will, subject to the limitations described below, pay to the Holder of this Note additional amounts so that every net payment made to the Holder of this Note, after the withholding, will be the same amount provided for in this Note and the Indenture (“Additional Amounts”).

Neither the Company nor the Guarantor will not be required to pay any Additional Amounts for (1) any tax or governmental charge which would not have been imposed but for the fact that the holder of this Note: (a) was a resident of, or engaged in business or maintained a permanent establishment or was physically present in, the relevant Taxing Jurisdiction or otherwise had some connection with the relevant Taxing Jurisdiction other than the mere ownership of, or receipt of payment on, this Note; (b) presented this Note for payment in the relevant Taxing Jurisdiction, unless this Note could not have been presented for payment elsewhere; or (c) presented this Note for payment more than 30 days after the date on which the payment became due unless the holder of this Note would have been entitled to these additional amounts if the holder of the Notes had presented this Note for payment within the 30-day period; (2) any estate, inheritance, gift, sale, transfer, personal property or similar tax or other governmental charge; (3) any tax or other governmental charge that is imposed or withheld because of failure by the holder of this Note to comply with any reasonable request by the Company: (a) to provide information concerning the nationality, residence or identity of the holder of this Note or that of the beneficial owner of this Note; or (b) to make any claim or satisfy any information or reporting requirement, which in either case is required by the relevant Taxing Jurisdiction as a precondition to exemption from all or part of the tax or other governmental charge; (4) any tax imposed on payments on this Notes under sections 1471 through 1474 of the Internal Revenue Code of 1986, as amended (the “Code”), any current or future regulations thereunder and official interpretations thereof, any agreements entered into pursuant to section 1471(b)(1) of the Code and any fiscal or regulatory legislation, rules or official practices adopted pursuant to any published intergovernmental agreement entered into in connection with the implementation of such sections of the Code (“FATCA”); or (5) any combination of items (1), (2), (3) or (4) above.

By purchasing this Note, each Holder of this Note and each beneficial owner of an interest herein agrees to provide, promptly upon request, to the Company and its agents (or other persons responsible for withholding of taxes, including by not limited to withholding of tax under FATCA or delivery of information under FATCA) information and/or properly completed

and signed tax certifications sufficient to eliminate the imposition of or to determine the amount of any withholding of tax, including withholding of tax under FATCA, or to enable the Company or its agents to satisfy reporting and other obligations.

The Company will be entitled to redeem this Note, at its option, at any time as a whole but not in part, upon not less than 30 nor more than 60 days’ notice, at 100% of the principal amount thereof, plus accrued and unpaid interest (if any) to the Redemption Date (subject to the right of holders of record on the relevant record date to receive interest due on the relevant Interest Payment Date), in the event that the Company or the Guarantor has become or would become obligated to pay, on the next date on which any amount would be payable with respect to this Note, any Additional Amounts as a result of: (1) a change in or an amendment to the laws (including any regulations promulgated thereunder) of a Taxing Jurisdiction, which change or amendment is announced after August 17, 2021; or (2) any change in or amendment to any official position regarding the application or interpretation of such laws or regulations, which change or amendment is announced after August 17, 2021, and, in each case, the Company or the Guarantor, as applicable, cannot avoid such obligation by taking reasonable measures available to it.

The Indenture contains provisions whereby (i) the Company and the Guarantor may be discharged from their obligations with respect to the Notes (subject to certain exceptions) or (ii) the Company and the Guarantor may be released from their obligations under specified covenants and agreements in the Indenture, in each case if the Company or the Guarantor irrevocably deposits with the Trustee money or Government Obligations, or a combination thereof, in an amount sufficient, without consideration of any reinvestment, to pay and discharge the entire indebtedness on all Notes of this series, and satisfies certain other conditions, all as more fully provided in the Indenture.

This Note shall be governed by and construed in accordance with the laws of the State of New York applicable to agreements and instruments made and to be performed wholly within such State.

All terms used in this Note without definition that are defined in the Indenture shall have the meanings assigned to them in the Indenture.

Unless the Certificate of Authentication hereon has been executed by or on behalf of the Trustee under the Indenture by the manual signature of one of its authorized officers, this Note shall not be entitled to any benefits under the Indenture or be valid or obligatory for any purpose.

IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed under its corporate seal.

This is one of the Securities of the series designated therein referred to in the within-mentioned Indenture.

Notice:     The signature to this assignment must correspond with the name as it appears upon the
face of the within Note in every particular, without alteration or enlargement or any
change whatsoever.

    Signatures must be guaranteed by an “eligible guarantor institution” meeting the requirements of the Trustee, which requirements include membership or participation in the Security Transfer Agent Medallion Program (“STAMP”) or such other “signature guarantee program” as may be determined by the Trustee in addition to, or in substitution for, STAMP, all in accordance with the Securities Exchange Act of 1934, as amended