California Code, Family Code - FAM § 6381

(a) Notwithstanding Section 6380 and subject to subdivision (b), an order issued under this part is enforceable in any place in this state.

(b) An order issued under this part is not enforceable by a law enforcement agency of a political subdivision unless that law enforcement agency has received a copy of the order, or the officer enforcing the order has been shown a copy of the order or has obtained information, through the California Restraining and Protective Order System maintained by the Department of Justice, of the contents of the order, as described in subdivision (b).

(c) The data contained in the California Restraining and Protective Order System shall be deemed to be original, self-authenticating, documentary evidence of the court orders.  Oral notification of the terms of the orders shall be sufficient notice for enforcement under subdivision (g) of Section 136.2 and Section 273.6 of the Penal Code.