in WA state you can buy a handgun in a private party transaction without nobody knowing nothing.
in almost all US states the private party sale of long guns, within a single state, is virtually unregulated, as it should be.
the problem of safety, though extremely important, should not be handled by any government agency. all firearms should remain a private matter. just like whatever happens in the bedroom. youz want anybody having lists?
You trust 'em to toss our names in the shredder?