D.C. Mun. Regs. tit. 27, r. 27-307
Within seven (7) business days after receipt of the Agency Report, or the dispositive motion prescribed in Subsection 306.1, the protester and interested parties may file a reply or response to either which shall state the party's factual and legal agreement or opposition to the Agency Report or motion.
All parties shall be served with a copy of the comments and proof of service provided to the Board.
Failure of the protester to file comments, or to file a statement requesting that the case be decided on the existing record, or to request an extension of time for filing, shall result in closing the record of the case and may result in dismissal of the protest.
When a protester fails to file comments on an Agency Report, factual allegations in the Agency Report's statement of facts not otherwise contradicted by the protest, or the documents in the record, may be treated by the Board as conceded.
D.C. Mun. Regs. tit. 27, r. 27-307