; and (ii) requires each such individual to sign— (I) a ledger, and enter into the ledger identifying information concerning the individual; and (II) a notice which sets forth the obligations of a gun show vendor under this chapter; and (C) notifies each person who attends the gun show of the requirements of this chapter, in accordance with such regulations as the Attorney General shall prescribe. (2) Recordkeeping A person who operates, or has operated, a gun show shall maintain records demonstrating compliance with paragraph (1)(B), at such place, for such period of time, and in such form as the Attorney General shall require by regulation, or transmit the records to the Attorney General. (c) Background check required before transfer of firearm between unlicensed persons It shall be unlawful for a person who is not licensed under this chapter to transfer possession of, or title to, a firearm at, or on the curtilage of, a gun show, to another person who is not so licensed, or for a person who is not so licensed to receive possession of, or title to, a firearm at, or on the curtilage of, a gun show from another person who is not so licensed, unless a licensed importer, licensed manufacturer, or licensed dealer— (1) has entered into a separate bound record the make, model, and serial number of the firearm, and such other information about the transaction as the Attorney General may require by regulation