D.C. Mun. Regs. tit. 19, § 2049
2049.1 If because of accident, sickness, or other good cause, a person fails to appear for a scheduled hearing, the person may apply within thirty (30) days to reopen the proceedings. If the Commission finds the cause sufficient, the Commission shall promptly fix a time and place for a hearing.
2049.2 The Commission may reopen a proceeding for any other cause it believes is sufficient; provided, that no appeal is pending before or has been decided by a court.
SOURCE: Final Rulemaking published at 35 DCR 3710, 3727-28 (May 20, 1988).