California Code, Fish and Game Code - FGC § 7232

(a) Notwithstanding Section 7121 any offal from a fish taken under a sport fishing license which is delivered by the license holder to a fish canner or fish processor may be processed, used, or sold by that fish canner or fish processor.

(b) Nothing in this section authorizes a holder of a sport fishing license to sell, or a fish canner or fish processor to purchase from a holder of a sport fishing license, any fish taken under a sport fishing license.