EXHIBIT 99.3 ------------ CONSTELLATION BRANDS, INC. FORM 10-K FOR FISCAL YEAR ENDED FEBRUARY 28, 2003 CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO SECTION 18 U.S.C. 1350 (SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002) In connection with the Constellation Brands, Inc. Annual Report on Form 10-K for the Fiscal Year Ended February 28, 2003, I, Thomas S. Summer, certify that, to the best of my knowledge: 1. The annual report on Form 10-K for the Fiscal Year Ended February 28, 2003 of Constellation Brands, Inc. fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and 2. The information contained in the periodic report on Form 10-K for the Fiscal Year Ended February 28, 2003 of Constellation Brands, Inc. fairly presents, in all material respects, the financial condition and results of operations of Constellation Brands, Inc. Dated: May 13, 2003 /s/ Thomas S. Summer ---------------------------------------- Thomas S. Summer, Executive Vice President and Chief Financial Officer A signed original of this written statement required by Section 906 has been provided to Constellation Brands, Inc., and will be retained by Constellation Brands, Inc., and furnished to the Securities and Exchange Commission or its staff upon request.