If a respondent fails to appear for a scheduled hearing, and the hearing has not been continued, postponed, or rescheduled, the ALJ may receive evidence and hear testimony of witnesses who have appeared and render a final decision based on the evidence or may issue a default judgment against the respondent.
A respondent who has failed to appear at a scheduled hearing may, before the ALJ issues a decision, make a request in writing to the ALJ that the hearing be reopened for good cause shown.
D.C. Mun. Regs. tit. 16, r. 16-3112