D.C. Mun. Regs. tit. 21, § 5357
5357.1 Except as provided in 5357.2, a Contracting Officer shall not award a contract for the construction of a project to the firm that designed the project or to the firm's, subsidiaries or affiliates without the prior written approval of the General Manager.
5357.2 If a proposed construction contract will use a design build or turnkey method of construction, the Contracting Officer may award the construction contract to an affiliate of the architect-engineer firm that designed the project.
SOURCE: Emergency Rulemaking published at 46 DCR 613 (January 22, 1999) [EXPIRED]; as Final Rulemaking published at 46 DCR 7349 (September 17, 1999).