D.C. Mun. Regs. tit. 22-C, § 9718
9718.1 No document or other information shall be accepted for the record after the close of a hearing except as follows:
(a) Unless accompanied by a Motion to Re-open the Record demonstrating good cause and the lack of prejudice to any party;
(b) Until all parties are afforded due notice and an opportunity to rebut the information; or
(c) Upon official notice of a material fact not appearing in the evidence in the record in accordance with section 10(b) of the District of Columbia Administrative Procedure Act, approved October 21, 1968 (82 Stat. 1207; D.C. Official Code § 2-509(b)).
9718.2 The Board shall afford parties an opportunity to file Proposed Findings of Fact and Conclusions of Law within thirty (30) calendar days after receipt of the transcript from the hearing. The Board may, in its discretion, grant an extension to file Proposed Findings of Fact and Conclusions of Law for good cause. An extension granted by the Board shall not exceed twenty (20) calendar days after the initial deadline.
9718.3 A copy of the Proposed Findings of Fact and Conclusions of Law shall be served on each party.
9718.4 Proposed Findings of Fact and Conclusions of Law shall be limited to the record and shall not include new legal issues that were not raised during the hearing.
SOURCE: Final Rulemaking published at 73 DCR 002136 (February 20, 2026).