California Code, Business and Professions Code - BPC § 7583.22

(a) A licensee, qualified manager of a licensee, or security guard who, in the course of their employment, may be required to carry a firearm shall, prior to carrying a firearm, do all of the following:

(b) A security guard who, in the course of their employment, may be required to carry a firearm, shall, prior to carrying a firearm, be found capable of exercising appropriate judgment, restraint, and self-control for the purposes of carrying and using a firearm during the course of their duties, pursuant to Section 7583.47.

(c) A licensee shall not permit an employee to carry or use a loaded or unloaded firearm, whether or not it is serviceable or operative, unless the employee possesses a valid and current firearms qualification card issued by the bureau or is so otherwise qualified to carry a firearm as provided in Section 7583.12.

(d) A pocket card issued by the bureau pursuant to Section 7582.13 may also serve as a firearms qualification card if so indicated on the face of the card.

(e) Paragraph (1) of subdivision (a) shall not apply to a peace officer as defined in Chapter 4.5 (commencing with Section 830) of Title 3 of Part 2 of the Penal Code, who has successfully completed a course of study in the use of firearms or to a federal qualified law enforcement officer, as defined in Section 926B of Title 18 of the United States Code, who has successfully completed a course of study in the use of firearms.