California Code, Vehicle Code - VEH § 16051

(a) Evidence may be established by filing a report indicating that the motor vehicle involved in the accident was owned, rented, or leased by or under the direction of the United States, this state, or any political subdivision of this state or municipality thereof.

(b) Evidence may be established by filing a report indicating that the motor vehicle involved in the accident was owned and operated by a peace officer, member of the Department of the California Highway Patrol, or firefighter in the performance of his or her duty, and at the request of or under the direction of the United States, this state, or any political subdivision or municipality of this state.