D.C. Mun. Regs. tit. 27, r. 27-1536
After bid opening, the contracting officer shall examine each bid for mistakes.
In cases of apparent mistakes and when the contracting officer has reason to believe that a mistake may have been made, the contracting officer shall request from the bidder a verification of the bid and call attention to the suspected mistake.
If the bidder alleges a mistake, the matter shall be processed before award in accordance with this section.
If the mistake and the intended correct bid are clearly evident on the face of the bid document, the bid shall be corrected to the intended correct bid and may not be withdrawn. Examples of mistakes that may be clearly evident on the face of the bid document are typographical errors, errors in extending unit prices, transposition errors, and arithmetical errors.
If the mistake and the intended correct bid are not clearly evident, a bidder may be permitted to withdraw a low bid if:
The authority to permit corrections of bids is limited to bids that, as submitted, are responsive to the IFB, and shall not be used to permit correction of bids to make them responsive.
Correction of bids submitted by electronic means shall be effected by including in the electronic solicitation file the original bid, the verification request, and the bid verification.
When a bid is corrected or withdrawn, or correction or withdrawal is denied, the contracting officer shall prepare a determination showing that the relief was granted or denied in accordance with this section.
D.C. Mun. Regs. tit. 27, r. 27-1536