California Code, Food and Agricultural Code (Formerly Agricultural Code) - FAC § 58924

(a) In the case of producers, 2 1/2 percent of the gross dollar volume of sales of the commodity which is affected by all such producers regulated by such marketing order.

(b) In the case of processors, distributors, or other handlers, 2 1/2 percent of the gross dollar volume of purchases of the commodity which is affected by the marketing order from producers or of the gross dollar volume of sales of the commodity which is affected by the marketing order and handled by all such processors, distributors, or other handlers that are regulated by such marketing order during the marketing season during which such marketing order is effective.