D.C. Mun. Regs. tit. 24, § 2321
2321.1 A person is eligible to become a licensed dealer of firearms if that person:
(a) Is eligible to register a firearm under this Chapter;
(b) Is eligible under federal law to engage in such business; and
(c) Has not previously violated any statutory duty of a licensed dealer if that person earlier was a licensed dealer.
2321.2 The license issued to a firearms dealer shall be valid for a period of not more than one year from the date of issuance.
2321.3 To deal firearms lawfully, the holder of a firearms dealer's license must also comply with any other license or zoning procedures required by law, including having a certificate of occupancy and a basic business license in accordance with applicable provisions in the District of Columbia Municipal Regulations.
2321.4 Prior to applying to the Firearms Registration Section for a firearm dealer's license, an applicant must first obtain a Federal Firearms Dealer's License issued by the Bureau of Alcohol, Tobacco, and Firearms.
2321.5 Each application for a dealer's license and renewal shall be made on a form prescribed by the Chief, shall be sworn to or affirmed by the applicant, and shall contain:
(a) All information required by section 203 of the Firearms Control Act of 1975 (D.C. Law 1-85; D.C. Official Code § 7-2502.03);
(b) The address where the applicant conducts or intends to conduct his/her business;
(c) Whether the applicant, prior to September 24, 1976, held a license to deal in deadly weapons in the District; and
(d) Such other information as the Chief may required including, but not limited to, fingerprints and photographs of the applicant.
Source: Notice of Emergency and Proposed Rulemaking published at 56 DCR 624 (January 16, 2009)[EXPIRED]; as amended by Notice of Final Rulemaking published at 56 DCR 4380, 4385 (June 5, 2009).