D.C. Mun. Regs. tit. 30, § 2325
2325.1 The contracting officer shall require a prime contractor to submit and certify cost or pricing data for any contract awarded through competitive sealed proposals, sole source procedures, or any change order or contract modification.
2325.2 The contracting officer shall require that each contractor certify that, to the best of the contractor's knowledge, the cost or pricing data submitted was accurate, complete, and current as of a mutually determined specified date.
2325.3 When cost or pricing data are required, the contracting officer shall include a contract clause, approved by the Director, which provides that the price, including profit or fee, will be adjusted to exclude any significant price increases occurring because the contractor's cost or price information, as of the specified date, was inaccurate, incomplete, or not current.
SOURCE: Final Rulemaking published at 36 DCR 6681, 6756 (September 22, 1989).