California Code, Fish and Game Code - FGC § 8254

(a) Lobsters shall not be taken for commercial purposes except under a valid lobster permit issued to that person that has not been suspended or revoked, subject to regulations adopted by the commission.

(b) Every person who takes, assists in taking, possesses, or transports lobsters for commercial purposes while on any boat, barge, or vessel, or who uses or operates or assists in using or operating any boat, net, trap, line, or other appliance to take lobsters for commercial purposes, shall have a valid lobster permit.

(c) The permit fee for a lobster permit is two hundred sixty-five dollars ($265).

(d) The fee for a lobster crewmember permit is one hundred twenty-five dollars ($125).

(e) For the purposes of this section, it is prima facie evidence that lobster is taken for commercial purposes if the possession of lobster is more than three times the sport bag limit.