D.C. Mun. Regs. tit. 8-B, § 3306
3306.1 After issuance of a solicitation, but before the date set for receipt of proposals, the contracting officer may make changes in the solicitation to reflect the following:
(a) Significant changes in quantity, specifications, or delivery schedules;
(b) Correction of defects or ambiguities;
(c) Any change in the closing date for receipt of proposals; or
(d) Any other appropriate purpose affecting the procurement.
3306.2 The contracting officer shall determine if the closing date needs to be changed when amending a solicitation.
3306.3 If the time available before closing is insufficient, the contracting officer shall notify prospective offerors by telegram, facsimile, or telephone of the extension of the closing date and shall, by written amendment to the RFP, confirm the extension of the closing date.
3306.4 The contracting officer shall not award a contract unless all of the amendments made to the RFP have been issued in sufficient time to be considered by prospective offerors.
SOURCE: Final Rulemaking published at 39 DCR 2566 (April 10, 1992).