Cal. Food & Agric. Code § 33146

Any producer or approved milk inspection service may file with the director a written protest regarding any designation which is made pursuant to Section 33141. A petition, signed by 51 percent or more of producers of any grade of milk within the jurisdiction of any approved milk inspection service, may request the termination of the county approved milk inspection service and that instead an inspection service be established by the director. The written protest or petition shall state all the reasons for the protest or petition.