Cal. Food & Agric. Code § 12034

County boards of supervisors may set fees for registration to cover the cost of registering pest control advisers, but in no case shall the fee total more than ten dollars ($10) per year for a pest control adviser to register in person in the county listed in the adviser’s address on the license issued pursuant to Article 2 (commencing with Section 12021) or the county of occupational choice, as the case may be, and five dollars ($5) per year for an adviser to register in an additional county as provided in Section 12031.