Cal. Food & Agr. Code § 52061
The director shall inspect, weigh, and grade upon request and certify to any interested party the quality, condition, and quantity of any field crop or other agricultural product under such regulations as he may prescribe. Certificates which are issued by authorized agents of the director are prima facie evidence of the truth of the statements which are contained in them. The presumption established by this section is a presumption affecting the burden of proof, but it does not apply in a criminal action.
Such inspection shall not be made or such certificates issued by any person not specifically authorized by the director in reference to any field crop product for which state standards have been established. Any person so authorized shall comply with the regulations adopted by the director relative to the certification of field crop products.
Ca. Food and Agric. Code § 52061