California Code, Food and Agricultural Code (Formerly Agricultural Code) - FAC § 61932

(a) Any market milk, market skim milk, half-and-half, or concentrated milk that is supplied to consumers in the fluid state, with the exception of the following:

(b) Any market milk, market skim milk, or market cream that is used in any other milk product, or products resembling milk products, in which the use of market milk, or any components or derivatives of market milk, is required by, or pursuant to, this code, except any product defined in Section 61933 as class 2.

(c) Any market milk, market skim milk, market cream, market milk fat, or market milk solids-not-fat that is used in the standardizing or fortifying of any milk product that is defined in this section as class 1.

(d) Any market milk, market skim milk, or market cream that is used in any product not otherwise classified, which is required by any regulations adopted by the director pursuant to Article 2 (commencing with Section 36631) of Chapter 1 of Part 3 of Division 15 to be made from market milk or any components or derivatives of market milk.

(e) Any market milk, market skim milk, market cream, market milk fat, or market milk solids-not-fat used in any filled product or imitation milk product, when the product imitated or resembled, is defined in this section as class 1.