D.C. Mun. Regs. tit. 19, § 4303
4303.1 The Library may satisfy requirements for supplies, services and construction from one of the following sources:
4303.2 The CCO shall follow the procedures required by each source in satisfying Library procurement requirements.
4303.3 The Library may satisfy requirements for supplies and services from other sources through full and open competition, including sources from the District of Columbia government's local, small or disadvantaged business enterprise program in accordance with these regulations.
SOURCE: Final Rulemaking published at 55 DCR 493 (January 18, 2008).