California Security guard carry gun to work?

In California, a security guard cannot carry a gun to work unless they are licensed as an armed security guard. The rules are very strict:

Unarmed security guards:

They are not allowed to carry a firearm while on duty. They only need a standard Guard Card.

Armed security guards:

They can carry a firearm, but only if they have a valid BSIS Firearm Permit in addition to their Guard Card. This permit requires fingerprinting, background checks, classroom training, and live-fire qualification.