Cal. Unemp. Ins. Code § 13076

If the employer is the United States, or this state, or any political subdivision thereof, including the Regents of the University of California, a city organized under a freeholders’ charter, or any agency or instrumentality of any one or more of the foregoing, the return of the amount deducted and withheld upon any wages may be made by any officer or employee of the United States, or of such state, city organized under a freeholders’ charter, or political subdivision, or of such agency or instrumentality, as the case may be, having control of the payment of such wages, or appropriately designated for that purpose.