Cal. Food & Agric. Code § 59728

If grade, quality, or size regulations are authorized under any marketing program for any commodity which is used for canning, freezing, fermenting, or distilling, and the regulations are not an integral part of a proration plan for the purpose of controlling a surplus condition in the commodity, such grade, quality, or size regulations or interpretations, or modifications of them, shall be approved by a grading committee which is appointed by the director. A grading committee shall consist of the marketing program committee, or a subcommittee, of at least seven members and an equal number of processor representatives that are nominated by the industry which is engaged in the processing of the commodity that is involved. Any action of the grading committee shall be concurred in by a majority of the processor members, a majority of the producer members, and by the director.