California Code, Food and Agricultural Code (Formerly Agricultural Code) - FAC § 34301.5

(a) “Handler” means a person who, as owner, agent, broker, or intermediary, receives, purchases, or otherwise acquires ownership, possession, or control of milk in unprocessed or bulk form from a producer for the purpose of manufacturing, processing, selling, distributing, or other handling.

(b) “Producer” means a person who operates a dairy farm.

(c) “Producer-handler” means a person who is both a producer and a handler.