California Code, Education Code - EDC § 22206.4

(a) If a member affected by an audit disagrees with the final audit report, the member may request an administrative hearing pursuant to Section 22219.  The request shall be made in writing and be mailed or emailed to the designated address identified in the final audit report within 90 days of the board's transmission of the final audit report to the member, as provided in Section 22206.2.

(b) If a member affected by the audit fails to request an administrative hearing within the time provided in subdivision (a), the member's right to an administrative hearing shall be deemed waived, and the findings of the final audit report shall be deemed the board's final determination as to that member.