D.C. Mun. Regs. tit. 1, § 511
511.1 In deciding all appeals, hearing committees shall apply the rule of harmless error.
SOURCE: Final Rulemaking published at 44 DCR 3665 (June 27, 1997), incorporating by reference the text of Proposed Rulemaking published at 44 DCR 2934, 2951 (May 16, 1997).