If a person has a research authorization for a pesticide issued pursuant to Section 6260 of Title 3 of the California Code of Regulations for the purpose of testing the pesticide, and the produce on which the pesticide was tested is required to be destroyed, any actual costs incurred by the commissioner to investigate and confirm the destruction of the produce shall be paid for by the person who has the research authorization. The costs charged by the commissioner shall not exceed one hundred twenty-five dollars ($125) per testsite. The board of supervisors of each county may adopt a fee schedule to cover the commissioner’s costs under this section.