Cal. Financial Code § 502

(a) The commissioner may by order or regulation grant exemptions from this section in cases where the commissioner finds that the requirements of this section are not necessary. (b) Each California state bank shall, within 90 days after the end of each fiscal year, or within such extended time as the commissioner may prescribe, file with the commissioner an audit report for the fiscal year. (c) The audit report called for in subdivision (b) shall comply with all of the following provisions: (1) The audit report shall contain those audited financial statements of the bank for or as of the end of the fiscal year prepared in accordance with generally accepted accounting principles and any other information that the commissioner may require. (2) The audit report shall be based upon an audit of the bank conducted in accordance with generally accepted auditing standards and any other requirements that the commissioner may prescribe. (3) The audit report shall be prepared by an independent certified public accountant or independent public accountant who is not unsatisfactory to the commissioner. (4) The audit report shall include or be accompanied by a certificate or opinion of the independent certified public accountant or independent public accountant that is satisfactory in form and content to the commissioner. If the certificate or opinion is qualified, the commissioner may order the bank to take such action as the commissioner may find necessary to enable the independent certified public accountant or independent public accountant to remove the qualification.