D.C. Mun. Regs. tit. 27, § 1506
1506.1 Each IFB shall state whether the bidder is required to furnish samples.
1506.2 The contracting officer shall not require bidders to furnish bid samples unless there are characteristics of the product that cannot be described adequately in the specifications or purchase description.
1506.3 The contracting officer shall only use bid samples to determine the responsiveness of the bid, and shall not be used to determine a bidder's ability to produce the required items.
1506.4 The contracting officer shall reject a bid as nonresponsive if the sample fails to conform to each of the characteristics listed in the IFB.
SOURCE: Final Rulemaking published at 35 DCR 1423 (February 26, 1988); as amended by Notice of Emergency and Proposed Rulemaking published at 59 DCR 3714 (March 6, 2012)[EXPIRED]; as amended Notice of Final Rulemaking published at 59 DCR 6290, 6292 (June 1, 2012).