Sec. 201 Sale or transfer requirements for qualifying firearms
“(cc) Unauthorized sale or transfer of a qualifying firearm—It shall be unlawful for any person to sell, deliver, or otherwise transfer a qualifying firearm to, or for, any person who is not a licensed importer, licensed manufacturer, licensed dealer, or licensed collector, or to receive a qualifying firearm from a person who is not a licensed importer, licensed manufacturer, licensed dealer, or licensed collector, unless, at the time and place of the transfer or receipt—
“(1) the transferee presents to a licensed dealer a valid firearm owner license issued to the transferee—
“(A) under section 923(m); or
“(B) pursuant to a State firearm licensing system certified under section 936 established by the State in which the transfer or receipt occurs;
“(2) the licensed dealer contacts the Attorney General or the head of the State agency that administers the certified system described in paragraph (1)(B), as applicable, and receives notice that the transferee has been issued a firearm owner license described in paragraph (1) and that the firearm owner license remains valid; and
“(3) the licensed dealer records on a document (which, in the case of a sale, shall be the sales receipt) a tracking authorization number provided by the Attorney General or the head of the State agency, as applicable, as evidence that the licensed dealer has verified the validity of the firearm owner license.”