D.C. Mun. Regs. tit. 14, § 3817
3817.1 Any party to an appeal may file a motion with the Commission requesting the issuance of a subpoena requiring the production of documents or the attendance and testimony of witnesses, or a subpoena may be issued by the Commission on its own initiative.
3817.2 Request for subpoenas shall meet the following requirements:
3817.3 The Commission shall rule promptly on request for subpoenas.
3817.4 A subpoena may be served in the same manner and by any person authorized by the civil rules of the Superior Court of the District of Columbia; provided, that no witness fees are required.
SOURCE: Notice of Final Rulemaking published at 33 DCR 1336, 1347 (March 7, 1986).