D.C. Mun. Regs. tit. 30, § 106
106.1 The Chairperson of any ad hoc committee or any two (2) members of an ad hoc committee may call a meeting of the committee by informing the Executive Director of the purpose of the meeting not less than forty-eight (48) hours before the meeting.
106.2 An ad hoc committee shall be composed of at least three (3) Board members.
106.3 Two (2) Board members shall constitute a quorum for the transaction of business.
106.4 The affirmative vote of two (2) Board members present at the time of a vote shall constitute the action by an ad hoc committee.
SOURCE: Final Rulemaking published at 33 DCR 3704, 3708 (June 20, 1986).