Very simple: just when you register your car and have to show proof of insurance you have to show proof of ownership of a certified gun safe in your name when purchasing a gun or rifle. No big deal. If they are going to store it in the save is another question.

__________________
1979 Black on Black, 300CD (sold), 1990 Black 300SE, Silver 1989 Volvo 780, 1988 300CE (vanished by the hands of a girlfriend), 1992 300CE (Rescue).