D.C. Mun. Regs. tit. 27, § 2603
2603.1 Any pre-solicitation notices and each solicitation shall state the approximate scope of the construction requirement in terms of physical characteristics and estimated price range.
2603.2 In no event shall the notice of the scope of a project disclose the District's estimate of costs.
2603.3 Unless narrower price ranges are specified by the contracting officer, the estimated price shall be described in terms of one (1) of the following price ranges:
(a) Less than $10,000;
(b) Between $10,000 and $100,000;
(c) Between $100,000 and $250,000;
(d) Between $250,000 and $500,000;
(e) Between $500,000 and $1,000,000;
(f) Between $1,000,000 and $5,000,000;
(g) Between $5,000,000 and $10,000,000; or
(h) More than $10,000,000, in increments of $5,000,000 or more, as deemed appropriate by the contracting officer.
SOURCE: Final Rulemaking published at 35 DCR 1580 (February 26, 1988).