California Code, Food and Agricultural Code (Formerly Agricultural Code) - FAC § 42793

(a) The board of supervisors of the county may establish a schedule of fees for the certification inspection or certificates to be paid by owners, shippers, or other interested parties that request such certification inspection or certificates. The schedule of fees which is established for such certification inspection or certificates shall be based upon the approximate cost of the inspection which is necessary to determine that the fruits, nuts, or vegetables have met the requirements of this division or the requirements of the state or country of intended destination.

(b) The schedule of fees may include fees for certification of fruits, nuts, or vegetables which are exempted from the general standards of the state, as provided by statute, or by regulation pursuant to Section 42682 or 42684 when shipped out of the state for commercial processing, preserving, or manufacturing under a permit of the county commissioner.