California Code, Health and Safety Code - HSC § 13175

No natural person shall service, charge, or test any portable fire extinguisher without a certificate of registration issued by the State Fire Marshal pursuant to this chapter expressly authorizing such person to perform such acts.

The provisions of this article apply to the state, the Regents of University of California, a county, city, district, public authority, and any other political subdivision or public corporation in this state.