D.C. Mun. Regs. tit. 8-B, § 3206
3206.1 If the bidder is required to furnish bid samples, the requirement for bid samples shall be stated in the IFB.
3206.2 The contracting officer shall not require bidders to furnish bid samples unless the characteristics of the product cannot be described adequately in the specifications or purchase description.
3206.3 Bid samples shall be used only to determine the responsiveness of the bid and shall not be used to determine a bidder's ability to produce the required items.
3206.4 The contracting officer shall reject a bid as nonresponsive if a bid sample fails to conform to each characteristic listed in the IFB
SOURCE: Final Rulemaking published at 39 DCR 2566 (April 10, 1992).