AMENDMENT NO. 15

PARTICIPATION AGREEMENT

     The Participation Agreement (the “Agreement”), dated as of February 17, 1998, by and among AIM Variable Insurance Funds, a Delaware trust (“AVIF”); A I M Distributors, Inc., a Delaware corporation, Sun Life Assurance Company of Canada (U.S.), a Delaware life insurance company, and Clarendon Insurance Agency, Inc., a Massachusetts corporation, is hereby amended as follows:

     WHEREAS, effective April 30, 2010, AIM Variable Insurance Funds was renamed AIM Variable Insurance Funds (Invesco Variable Insurance Funds). All references to AIM Variable Insurance Funds will hereby be deleted and replaced with AIM Variable Insurance Funds (Invesco Variable Insurance Funds);

     WHEREAS, on March 31, 2008, A I M Distributors, Inc. was renamed Invesco Aim Distributors, Inc. Effective April 30, 2010, Invesco Aim Distributors, Inc. was renamed Invesco Distributors, Inc. All references to A I M Distributors, Inc. and Invesco Aim Distributors, Inc. will hereby be deleted and replaced with Invesco Distributors, Inc.

     Schedule A of the Agreement is hereby deleted in its entirety and replaced with the following:

SCHEDULE A

FUNDS AVAILABLE UNDER THE CONTRACTS

ALL SERIES I SHARES AND SERIES II SHARES OF AIM VARIABLE INSURANCE FUNDS (INVESCO VARIABLE INSURANCE FUNDS)

SEPARATE ACCOUNTS UTILIZING THE FUNDS

ALL SEPARATE ACCOUNTS UTILIZING THE FUNDS

CONTRACTS FUNDED BY THE SEPARATE ACCOUNTS

ALL CONTRACTS FUNDED BY THE SEPARATE ACCOUNTS

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All other terms and provisions of the Agreement not amended herein shall remain in full force and effect.

Effective date: April 30, 2010.

			AIM VARIABLE INSURANCE FUNDS
			(INVESCO VARIABLE INSURANCE FUNDS)
Attest:	/s/ Peter Davidson		By:	/s/ John M. Zerr
	Name:	Peter Davidson		Name:	John M. Zerr
	Title:	Assistant Secretary		Title:	Senior Vice President
			INVESCO DISTRIBUTORS, INC.
Attest:	/s/ Peter Davidson		By:	/s/ John S. Cooper
	Name:	Peter Davidson		Name:	John S. Cooper
	Title:	Assistant Secretary		Title:	President
			SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
Attest:	/s/ Sandra DaDalt		By:	/s/ Susan Lazzo
	Name:	Sandra DaDalt		Name:	Susan Lazzo
	Title:	AVP & Sr. Counsel		Title:	AVP & Sr. Counsel
			CLARENDON INSURANCE AGENCY, INC.
Attest:	/s/ Michelle D.Albero		By:	/s/ William Evers
	Name:	Michelle D.Albero		Name:	William Evers
	Title:	Sr. Counsel		Title:	AVP & Sr. Counsel

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