California Code, Penal Code - PEN § 18180

(1) A statement of the grounds supporting the issuance of the order.

(2) The date and time the order expires.

(3) The address of the superior court for the county in which the restrained party resides.

(4) The following statement:

“To the restrained person: This order will last until the date and time noted above. If you have not done so already, you must surrender all firearms, ammunition, and magazines that you own or possess in accordance with Section 18120 of the Penal Code. You may not have in your custody or control, own, purchase, possess, or receive, or attempt to purchase or receive a firearm, ammunition, or magazine, while this order is in effect. Pursuant to Section 18185, you have the right to request a hearing on an annual basis to terminate this order during its effective period. You may seek the advice of an attorney as to any matter connected with the order.”