D.C. Mun. Regs. tit. 19, § 1208
1208.1 The Director may refuse to issue or renew, or may suspend or revoke, a sightseeing tour guide license or a sightseeing tour company license issued under this chapter for any reason set forth in this chapter or D.C. Official Code § 47-2844.
1208.2 The Director also may refuse to issue or renew, or may suspend or revoke, a sightseeing tour guide license or a sightseeing tour company license issued under this chapter on any of the following grounds:
(a) Conviction of the licensee of a criminal offense involving fraudulent conduct;
(b) Willful or fraudulent circumvention of a provision of District law or regulation relating to the conduct of the business;
(c) Employment of a fraudulent or misleading device, method, or practice relating to the conduct of the business; or
(d) The making of a false statement in the license application.
1208.3 All qualifications set forth in this chapter as a prerequisite to the issuance of a license shall be maintained for the entire license period. Failure to maintain a qualification during the license period shall be cause for suspension or revocation of the license.
SOURCE: Article 2, § 9 of the Police Regulations of the District of Columbia (1958), Commissioners' Order 58-433 (March 25, 1958) published at 4 DCR 252 (April 7, 1958); as amended by Final Rulemaking published at 57 DCR 6116 (July 16, 2010).