D.C. Mun. Regs. tit. 27, r. 27-211
The Board shall provide the parties at least seven (7) business days' notice of the time and place of a hearing, but the notice may be waived by the parties.
All hearings on the merits shall be open to the public. The Board may limit access to testimony covered by a protective order entered in the case pursuant to Section 104.
Questions concerning the admissibility of evidence and other matters that may arise in the course of the hearing shall be ruled upon by the presiding administrative judge, or, if necessary, by a majority vote of the designated panel. A decision upon the merits, or a final disposition of any appeal or part thereof, shall be by majority vote of the designated panel, except as provided in Subsection 215.5.
Witnesses at hearings shall be examined orally under oath or affirmation, which shall be administered by the presiding administrative judge or any member of the assigned pane l. Any member of the panel may question any witness at any time during or after examination or cross-examination by the parties.
An official reporter selected by the District shall make an official transcript of the proceedings at hearings on the merits. After the close of a hearing this transcript, together with any exhibits, briefs, or other documents filed in the proceeding, shall be filed with the Board and become a part of the record. No other recordings of the proceedings will be made.
The official reporter shall transmit copies of the transcript to the Board and the contracting agency. Copies of the official transcript shall be supplied to other parties by the official reporter at rates determined between the official reporter and the parties.
Motions to correct an official transcript shall be filed with the Board within fifteen (15) days after the receipt of the last portion of the transcript, and shall certify the date when the last portion of the transcript was received by the maker of the motion.
Witnesses are to be excluded from the hearing room so they cannot hear the testimony of other witnesses, except a party who is an individual, the designated representative of a party which is an entity, someone authorized by statute to be present, or a person whose presence is essential to the presentation of the party's case.
D.C. Mun. Regs. tit. 27, r. 27-211