D.C. Mun. Regs. tit. 27, § 1901
1901.1 A contracting officer may contract for expert and consulting services when essential to the agency's mission, when necessary to comply with a court order, or when those services would improve the agency's effectiveness or economy of operations. Expert and consulting services may include, but are not limited to, the following:
1901.2 Except as provided in § 1901.4, a contracting officer shall not contract for expert or consulting services for any of the following purposes:
1901.3 Except as provided in § 1901.4, the contracting officer shall ensure that a contract for expert or consulting services does not establish or allow any of the following:
(b) Detailed control or supervision by District personnel of the contractor or its employees with respect to the day-to-day operations of the contractor or the methods of accomplishment of the services;
(c) A regularly established tour of duty for the contractor; or
(d) Supervision of District employees by the contractor.
1901.4 When an expert or consultant is engaged by a court-appointed receiver or, upon review by and the concurrence of the Attorney General, by any other contracting officer pursuant to or in order to comply with a court order, §§ 1901.2 and 1901.3 shall not apply.
1901.5 The contracting officer shall not award a contract for consulting or expert services in a manner that gives preferential treatment to former District employees.
SOURCE: Final Rulemaking published at 35 DCR 1489 (February 26, 1988); as amended by Emergency and Proposed Rulemaking published at 47 DCR 8590 (October 20, 2000) [EXPIRED]; as amended by Emergency and Proposed Rulemaking published at 48 DCR 548 (January 19, 2001) [EXPIRED]; as amended by Final Rulemaking published at 62 DCR 8047 (June 5, 2015).