Cal. Penal Code § 23635
(b) The sale or transfer of a firearm shall be exempt from subdivision (a) if both of the following apply:
(c) The sale or transfer of a firearm shall be exempt from subdivision (a) if all of the following apply:
(d)
(1) Any long-gun safe commercially sold or transferred in this state, or manufactured in this state for sale in this state, that does not meet the standards for gun safes adopted pursuant to Section 23650 shall be accompanied by the following warning:
“WARNING: This gun safe does not meet the safety standards for gun safes specified in California Penal Code Section 23650. It does not satisfy the requirements of Penal Code Section 23635, which mandates that all firearms sold in California be accompanied by a firearm safety device or proof of ownership, as required by law, of a gun safe that meets the Section 23650 minimum safety standards developed by the California Attorney General.”