Cal. Food and Agricultural Code § 61306

(a) “Distributor” means any handler, as defined in Section 61826, and includes brokers and agents and the nonprofit cooperative associations described in Article 2 (commencing with Section 61331) of this chapter in the transactions in which such article provides that the associations are distributors. It also includes both of the following: (1) Any person who regularly operates mobile vehicles on routes predominantly for sales of market milk, market cream, or dairy products on such routes to wholesale customers. (2) A wholesale customer only as to milk, cream, or any dairy product that is actively and directly processed, manufactured, or packaged by such wholesale customer. (b) Distributor does not, however, include any of the following: (1) Any wholesale customer which is not actively and directly engaged in manufacturing, processing, or packaging milk, cream, or any dairy product. (2) Any producer that delivers milk or cream only to a distributor or manufacturer.