D.C. Mun. Regs. tit. 27, § 120
120.1 Except as otherwise provided by law, the burden of persuasion by a party to establish a fact or facts in dispute shall be met by a preponderance of the evidence.
SOURCE: Final Rulemaking published at 49 DCR 2078 (March 8, 2002); as amended by Final Rulemaking published at 67 DCR 1734 (February 21, 2020).