Cal. Food & Agr. Code § 78808
No action taken by the commission, or by any individual in accordance with this chapter or with the regulations adopted under this chapter, is a violation of the Cartwright Act, Chapter 2 (commencing with Section 16700) of Part 2 of Division 7 of the Business and Professions Code, the Unfair Practices Act, Chapter 4 (commencing with Section 17000) of Part 2 of Division 7 of the Business and Professions Code, or any statutory or common law against monopolies or combinations in restraint of trade. Proof that any action complained of was done in compliance with this chapter shall be a complete defense to the action or proceeding. The Legislature intends this program to be among those contemplated by Congress in the enactment of Section 610(i) of Title 7 of the United States Code.
Ca. Food and Agric. Code § 78808