Section 22-4510 - Licenses of weapons dealers; records; by whom granted; conditions(a) The Mayor of the District of Columbia may, in his or her discretion, grant licenses and may prescribe the form thereof, effective for not more than 1 year from date of issue, permitting the licensee to sell pistols, machine guns, sawed-off shotguns, and blackjacks at retail within the District of Columbia subject to the following conditions in addition to those specified in § 22-4509, for breach of any of which the license shall be subject to forfeiture and the licensee subject to punishment as provided in this chapter: (1) The business shall be carried on only in the building designated in the license.(2) The license or a copy thereof, certified by the issuing authority, shall be displayed on the premises where it can be easily read.(3) No pistol shall be sold: (A) if the seller has reasonable cause to believe that the purchaser is not of sound mind or is forbidden by § 22-4503 to possess a pistol [now "firearm"] or is under the age of 21 years; and (B) unless the purchaser is personally known to the seller or shall present clear evidence of his or her identity. No machine gun, sawed-off shotgun, or blackjack shall be sold to any person other than the persons designated in § 22-4514 as entitled to possess the same, and then only after permission to make such sale has been obtained from the Chief of Police of the District of Columbia.(4) A true record shall be made in a book kept for the purpose, the form of which may be prescribed by the Mayor, of all pistols, machine guns, and sawed-off shotguns in the possession of the licensee, which said record shall contain the date of purchase, the caliber, make, model, and manufacturer's number of the weapon, to which shall be added, when sold, the date of sale.(5) A true record in duplicate shall be made of every pistol, machine gun, sawed-off shotgun, and blackjack sold, said record to be made in a book kept for the purpose, the form of which may be prescribed by the Mayor of the District of Columbia and shall be personally signed by the purchaser and by the person effecting the sale, each in the presence of the other and shall contain the date of sale, the name, address, occupation, color, and place of birth of the purchaser, and, so far as applicable, the caliber, make, model, and manufacturer's number of the weapon, and a statement by the purchaser that the purchaser is not forbidden by § 22-4503 to possess a pistol [now "firearm"]. One copy of said record shall, within 7 days, be forwarded by mail to the Chief of Police of the District of Columbia and the other copy retained by the seller for 6 years.(6) No pistol or imitation thereof or placard advertising the sale thereof shall be displayed in any part of said premises where it can readily be seen from the outside. No license to sell at retail shall be granted to anyone except as provided in this section.(b) Any license issued pursuant to this section shall be issued by the Metropolitan Police Department as a Public Safety endorsement to a basic business license under the basic business license system as set forth in subchapter I-A of Chapter 28 of Title 47 of the District of Columbia Official Code [§ 47-2851.01 et seq.].July 8, 1932, 47 Stat. 652, ch. 465, § 10; June 29, 1953, 67 Stat. 94, ch. 159, § 204(f), (g); May 21, 1994, D.C. Law 10-119, § 15(i), 41 DCR 1639; Apr. 20, 1999, D.C. Law 12-261, § 2003(p), 46 DCR 3142; Oct. 28, 2003, D.C. Law 15-38, § 3(p), 50 DCR 6913.