D.C. Mun. Regs. tit. 27, § 1600
1600.1 If the contracting officer determines competitive sealed bidding is not practicable or advantageous to the District, a procurement may be conducted using the competitive sealed proposal (CSP) method.
1600.2 Proposals shall be solicited from the maximum number of qualified sources, and in a manner consistent with the nature of, and the need for, the goods or services being acquired.
SOURCE: Final Rulemaking published at 35 DCR 1446 (February 26, 1988); as amended by Final Rulemaking published at 60 DCR 1136 (February 1, 2013).