; or (B) in the case of a firearm acquired on or after the effective date, on the date the owner acquires the firearm. (3) Database (A) In general The Attorney General shall establish and maintain a database of all firearms registered pursuant to this subsection. (B) Access The Attorney General shall make the contents of the database accessible to all members of the public, all Federal, State, and local law enforcement authorities, all branches of the United States Armed Forces, and all State and local governments, as defined by the Bureau. (c) Licensing system (1) Requirements (A) General license Except as otherwise provided in this subsection, the Attorney General shall issue to an individual a license to possess a firearm and ammunition if the individual— (i) has attained 21 years of age; (ii) after applying for the license— (I) undergoes a criminal background check conducted by the national instant criminal background check system established under section 103 of the Brady Handgun Violence Prevention Act, and the check does not indicate that possession of a firearm by the individual would violate subsection (g) or (n) of section 922 or State law; (II) undergoes a psychological evaluation conducted in accordance with paragraph (2), and the evaluation does not indicate that the individual is psychologically unsuited to possess a firearm; and (III) successfully completes a training course, certified by the Attorney General, in the use, safety, and storage of firearms, that includes at least 24 hours of training; and (iii) demonstrates that, on issuance of the license, the individual will have in effect an insurance policy issued under subsection (d). (B) Antique firearm display license The Attorney General shall issue to an individual a license to display an antique firearm in a residence of the individual if the individual— (i) is the holder of a license issued under subparagraph (A); (ii) supplies proof that the individual owns an antique firearm