California Code, Financial Code - FIN § 8154

(a) Whenever, in the judgment of the commissioner, the condition of any association, savings and loan holding company, or any of their subsidiaries renders it necessary or expedient to make an extra examination or audit or to devote any extraordinary attention to its affairs, the commissioner shall do so or may appoint a certified public accountant or any expert to do so.

(b) The association, savings and loan holding company, or subsidiary specially examined under this section may be required to pay the actual expenses incurred by the commissioner for all extra services rendered by the commissioner, by the appointed accountant, or any expert.