D.C. Mun. Regs. tit. 31, § 231
231.1 The original of each petition or amendment shall be signed in ink by each party.
231.2 If a party is a corporation, organization or association, the pleading shall be signed and verified by an officer or other designated employee.
231.3 Any person who signs a pleading or brief, enters an appearance at a hearing, or transacts business with the Commission or Panel, represents by such act that he or she is authorized to do so.
231.4 Any attorney for or representative of a party shall also sign the pleading, and show his or her address, telephone number, and Unified Bar number if applicable.
231.5 Motions, notices, briefs, and petitions for reconsideration need only be signed by an attorney or representative.
231.6 Petitions or amendments to petitions (except petitions for reconsideration) shall be verified by each petitioner.
231.7 Answers or amendments to answers shall be verified by at least one (1) of the respondents filing the answer.
231.8 Other pleadings need not be verified.
231.9 Verification may be made before a notary public or by certification or declaration under the penalty of perjury.
SOURCE: Final Rulemaking published at 34 DCR 6715, 6731 (October 23, 1987).