California Code, Food and Agricultural Code (Formerly Agricultural Code) - FAC § 62077

A handler shall not pay any producer less than the applicable price established for the usage to which the market milk, purchased from him is applied pursuant to accounting procedures established by the director. If the market milk is not applied to any purpose set forth in Article 5 (commencing with Section 61931), then a handler shall not pay any producer less than the lower of the prices established under the applicable stabilization and marketing plan for class 4a and class 4b usage.