D.C. Mun. Regs. tit. 4, § 304
304.1 A majority of the authorized membership of Commissioners (eight (8) Commissioners) shall constitute a quorum for the transaction of business at all meetings of the Commission, except that a meeting may commence for the consideration of matters not requiring a vote when six (6) Commissioners are present.
SOURCE: Final Rulemaking published at 41 DCR 6720, 6723 (October 7, 1994).