Cal. HSC § 110890

(a) It is unlawful for any person to sell, offer for sale, advertise, or label any product in violation of this article. (b) Notwithstanding subdivision (a), a person engaged in business as a distributor or retailer of products who in good faith sells, offers for sale, labels, or advertises any product in reliance on the representations of a producer, handler, or other distributor that the product may be sold as organic, shall not be found to violate this article unless the distributor either: (1) knew or should have known that the product could not be sold as organic; (2) was engaged in producing or processing the product; or (3) prescribed or specified the manner in which the product was produced or processed.