D.C. Mun. Regs. tit. 19, § 4328
4328.1 The CCO may use a labor-hour contract when materials are not required.
4328.2 A labor-hour contract is a variation of a time and materials contract and may be used when a contractor's hourly rates are fixed.
SOURCE: Final Rulemaking published at 55 DCR 493 (January 18, 2008).