D.C. Mun. Regs. tit. 26-C, § 3019
3019.1 The Commissioner may suspend or revoke a license issued under this chapter, or take any other action provided for in this chapter, if the Commissioner finds that:
(a) The licensee has violated materially any provision of this chapter or any regulation or order lawfully made pursuant to and within the authority of this chapter, or failed to correct any non-material violation within the period prescribed by the Commissioner;
(b) Any fact or condition exists which, if it had existed at the time of the original application for the license, would have warranted a denial of the license; or
(c) The licensee refuses to permit the Commissioner to make an examination or investigation authorized under this chapter.
SOURCE: Final Rulemaking published at 65 DCR 8395 (August 10, 2018).