California Code, Food and Agricultural Code (Formerly Agricultural Code) - FAC § 62143

No person who qualifies as a handler under Section 62142 shall deal in market milk without first obtaining a license from the director. In addition, any person qualifying as a handler who purchases or handles market milk or market cream for processing or manufacture shall obtain a license for each milk plant owned or operated. The license provided for in this article is in addition to any license which is required by Division 15 (commencing with Section 32501), or by any law or ordinance of any county or municipality of this state.

Notwithstanding the provisions of Section 61832, “milk plant” as used in this article, means any place, structure, or building where a handler receives market milk and weighs, tests, standardizes, pasteurizes, homogenizes, separates, bottles or packages such milk. “Milk plant” does not include a place, structure, or building which is used for the purpose of receiving, weighing, or testing milk to be diverted or delivered to a licensed milk plant of the handler.