Cal. Health & Safety Code § 12005

This part does not apply to the transportation and use of explosives by representatives of the California Highway Patrol, the State Bureau of Criminal Identification and Investigation, local police departments, sheriff’s departments, and fire departments acting in their official capacity, nor shall this part apply to the transportation and use of explosives by any peace officer authorized to enforce the provisions of this part by Section 12020 when he is acting pursuant to such authority.