D.C. Mun. Regs. tit. 27, § 1803
1803.1 The contracting officer shall determine that the price to be paid to the successful offeror is fair and reasonable.
1803.2 When only one (1) response is received to a request for competitive quotations, or the price variance between multiple responses is so great that it reflects a lack of adequate competition, the contracting officer shall include a statement in the contract file giving the basis for the determination of a fair and reasonable price.
1803.3 The determination that a proposed price is fair and reasonable may be based on the following:
(a) Competitive quotations;
(b) Comparison of the proposed price with (i) prices found reasonable on previous purchases, (ii) current price lists; (iii) catalogs, (iv) advertisements or (v) similar items;
(c) Value analysis;
(d) The contracting officer's personal knowledge of the item being purchased; or
(e) Any other reasonable basis.
1803.4 The contracting officer shall establish and maintain records of oral and written price quotations and include the record in the purchase file. The records shall consist of the names of suppliers contacted and the prices and other terms and conditions quoted by each.
1803.5 The contracting officer's records of solicitations shall include, at a minimum, notes of abstracts to show prices, delivery, references to printed price lists used, the vendor or vendors contacted, and other pertinent data.
1803.6 The contracting officer shall retain records supporting small purchases for a minimum of three (3) years.
SOURCE: Final Rulemaking published at 35 DCR 1476 (February 26, 1988); as amended by Emergency Rulemaking published at 44 DCR 4450 (August 1, 1997) [EXPIRED]; as amended by Emergency Rulemaking published at 44 DCR 7181 (November 21, 1997) [EXPIRED]; as amended by Emergency Rulemaking published at 47 DCR 1261 (February 25, 2000) [EXPIRED]; as amended by Final Rulemaking published at 47 DCR 9882 (December 15, 2000); as amended by Emergency Rulemaking published at 50 DCR 3186 (April 25, 2003) [EXPIRED]; Final Rulemaking published at 50 DCR 8179 (October 3, 2003); as amended by Emergency Rulemaking published at 53 DCR 445 (January 20, 2006) [EXPIRED]; as amended by Final Rulemaking published at 53 DCR 5876 (July 21, 2006); as amended by Final Rulemaking published at 56 DCR 9558, 9560 (December 25, 2009).