California Code, Fish and Game Code - FGC § 1726

(a) Establish and maintain wild trout stocks, that, to the extent possible, should be native fish, in suitable waters of the state that are readily accessible to the general public as well as in those waters in remote areas.

(b) Establish angling regulations designed to maintain the wild trout fishery in those waters by natural reproduction.

(c) Discourage artificial planting of hatchery-raised hybrid and nonnative fish species in wild trout waters or in other areas that would adversely affect native aquatic and nonaquatic species.