Cal. Food & Agric. Code § 63902

In addition to any specific provisions regarding grievance procedures, and consistent with the nature of the commissions and councils established pursuant to Part 2 (commencing with Section 64001) and the desire to resolve conflicts in the most timely and cost-effective manner, any person subject to this division shall file a grievance with the appropriate commission or council, and exhaust all administrative remedies prior to the initiation of any litigation based on a claim, express or implied, that the activities undertaken by the commission or council do not directly or materially advance the interests of the State of California as set forth in this part.