California Code, Health and Safety Code - HSC § 113717

(a) Any person requesting the department to undertake any activity pursuant to paragraph (5) of subdivision (c) of Section 113871, Section 114417, paragraph (2) of subdivision (b) of Section 114419, and Section 114419.3 shall pay the department's costs incurred in undertaking the activity. The department's services shall be assessed at the current hourly cost-recovery rate, and it shall be entitled to recover any other costs reasonably and actually incurred in performing those activities, including, but not limited to, the costs of additional inspection and laboratory testing. For purposes of this section, the department's hourly rate shall be adjusted annually in accordance with Section 100425.

(b) The department shall provide to the person paying the required fee a statement, invoice, or similar document that describes in reasonable detail the costs paid.

(c) For purposes of this section only, the term “person” does not include any city, county, city and county, or other political subdivision of the state or local government.