California Code, Penal Code - PEN § 32005

(a) Every person who is licensed as a manufacturer of firearms pursuant to Chapter 44 (commencing with Section 921) of Title 18 of the United States Code and who manufactures firearms in this state shall certify under penalty of perjury and any other remedy provided by law that every model, kind, class, style, or type of pistol, revolver, or other firearm capable of being concealed upon the person that the person manufactures is not an unsafe handgun as prohibited by Sections 31900 to 32110, inclusive.

(b) Every person who imports into the state for sale, keeps for sale, or offers or exposes for sale any firearm shall certify under penalty of perjury and any other remedy provided by law that every model, kind, class, style, or type of pistol, revolver, or other firearm capable of being concealed upon the person that the person imports, keeps, or exposes for sale is not an unsafe handgun as prohibited by Sections 31900 to 32110, inclusive.