California Code, Fish and Game Code - FGC § 8561

(a) Notwithstanding Section 8394, shark and swordfish shall not be taken for commercial purposes with drift gill nets except under a valid drift gill net shark and swordfish permit issued to that person that has not been suspended or revoked and is issued to at least one person aboard the boat.

(b) A drift gill net shark and swordfish permit shall not be required for the taking of sharks with drift gill nets with a mesh size smaller than eight inches in stretched mesh and twine size no. 18 or the equivalent of this twine size or smaller.

(c) Notwithstanding Section 8102 or any other law, a permit issued pursuant to this section shall be surrendered or revoked as of January 31 of the fourth year following the department's notification to the Legislature pursuant to paragraph (2) of subdivision (b) of Section 8583.