California Code
ARTICLE 2 - Gun Show Enforcement and Security Act of 000
Section 27345.

27345. Any person who possesses a firearm or ammunition at a gun show or event shall have government-issued photo identification in immediate possession, and shall display it upon request to any security officer or peace officer.

(Amended by Stats. 2019, Ch. 736, Sec. 12. (AB 1669) Effective January 1, 2020.)