Food and Agricultural Code § 35011
ARTICLE 3. Licensing of Milk Products Plants and Other Places of Business
A person shall not engage in any of the following businesses unless he has obtained a license from the director for each separate milk products plant or place of business:
(a) Dealing in, receiving, manufacturing, freezing, or processing milk, or any product of milk.
(b) Manufacturing, freezing, or processing imitation ice cream or imitation ice milk.