EXHIBIT 32.2
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350
AS ADOPTED PURSUANT TO SECTION 906
OF THE SARBANES-OXLEY ACT OF 2002
I, John Fuller, Chief Financial Officer of Rubio’s Restaurants, Inc. (the “Company”), do hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:
| (a) | the Quarterly Report on Form 10-Q/A of the Company for the quarter ended September 26, 2004, as filed with the Securities and Exchange Commission (the “Report”), fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and |
| (b) | the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. |
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Date: June 22, 2005 | By: | /s/ John Fuller |
| John Fuller |
| Chief Financial Officer |
A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.