A petition to repeal the Machine Gun Ban. The Firearm Owners Protection Act of 1986 which bans the registration of machine guns for civilian ownership after May 19, 1986.
Machine guns banned under the national firearms act of 1934 could still be registered with the ATF up until May 19, 1986. No registered machine gun legally owned by a civilian has ever been used in a crime since the NFA of 1934.