Exhibit 32.2

                                  CERTIFICATION

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

         In connection with the Annual Report of CVB Financial Corp. (the
"Company") on Form 10-K for the fiscal year ended December 31, 2003, as filed
with the Securities and Exchange Commission on the date hereof (the "Report"),
I, Edward J. Biebrich, Jr., Chief Financial Officer of the Company, certify,
pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002, to the best of my knowledge that:

         (1)      The Report fully complies with the requirements of section
13(a) or 15(d) of the Securities Exchange Act of 1934; and

         (2)      The information contained in the Report fairly presents, in
all material respects, the financial condition and result of operations of the
Company.

Date: March 11, 2004                         /s/ Edward J. Biebrich Jr.
                                             -----------------------------------
                                             Edward J. Biebrich Jr.
                                             Chief Financial Officer