Who will ask to see the Form 1 or Form 4?

[grayfox]

Will be interesting to be sure, especially in these days of Bruen and WV vs. EPA. The gist of the latter is that an administrative bureau cannot make a new Reg not specifically authorized by Congress if it is a major action -- Congress must give explicit authority. Definition of "major action" is if it costs over $100 million. And the ATF has acknowledged this will cost over that, probably IIRC over $250 M. So unconstitutional, plus Bruen Heller etc say Biden (make no mistake it is on his watch) cannot forbid or criminalize a weapon in common use... which all of these are.
But none of this deters the leftists: notice that Illinois just passed a bunch of unconstitutional (US constitution) state laws as reaction to SCOTUS' Bruen... they will keep at it until someone, in Schwartzkopf-lingo, "breaks their nose" - and I'm talking about the leftists behind all of this, not just the bureaucrats... altho they need it too.
Finally, it fails because of the legal doctrine you cannot make something illegal that was purchased when it was legal -- Leniety or some such term. This is the same issue that Tumka ran into last week when he floated the idea of banning gas stoves "for health reasons" -- which CPSC also does not have authority to rule on anyway.