D.C. Mun. Regs. tit. 17, r. 17-4111
All parties at a hearing shall maintain decorum and good order at all times, and a board may exclude or have removed from the hearing room any person violating any reasonable order of the chairperson of the board.
A board may bar counsel from further participation in a hearing for disruptive conduct.
If counsel has been barred from participating in a hearing, a board may proceed with the hearing if consistent with the due process rights of the parties. Otherwise, the board shall adjourn the hearing to give the party whose counsel has been barred an opportunity to secure new representation expeditiously.
Counsel who has been barred from participating in a hearing may seek, and a board may grant, reinstatement to participate in the hearing on such terms as the board prescribes. The board shall not permit a reinstatement application to delay the proceedings.
D.C. Mun. Regs. tit. 17, r. 17-4111