D.C. Mun. Regs. tit. 30, § 2306
2306.1 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:
2306.2 The contracting officer shall determine if the closing date needs to be changed when amending a solicitation.
2306.3 If the time available before closing is insufficient, the contracting officer shall notify prospective offerors by telegram or telephone of the extension of the closing date and shall, by written amendment to the RFP, confirm the extension of the closing date.
2306.4 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 36 DCR 6681, 6743 (September 22, 1989).