D.C. Mun. Regs. tit. 27, § 1503
1503.1 The contracting officer shall provide a reasonable time for prospective bidders to prepare and submit bids in all IFB's, consistent with the needs of the District, but in no event less than fourteen (14) days from the first day of publication, unless the Director determines that it is appropriate to shorten the notice period to a period not less than three (3) days.
1503.2 When establishing a reasonable bidding time, the contracting officer shall consider the following factors:
(a) Degree of urgency;
(b) Complexity of requirements;
(c) Anticipated extent of subcontracting; and
(d) Normal mailing time for both invitations and bids.
SOURCE: Final Rulemaking published at 35 DCR 1422 (February 26, 1988); as amended by Notice of Emergency Rulemaking published at 58 DCR 558 (January 21, 2011)[EXPIRED]; as amended by Notice of Emergency and Proposed Rulemaking published at 58 DCR 4668 (May 27, 2011)[EXPIRED]; as amended by Notice of Emergency Rulemaking published at 58 DCR 8381 (September 30, 2011)[EXPIRED]; as amended by Notice of Final Rulemaking published at 58 DCR 9824 (November 18, 2011).