D.C. Code § 2-220.06
Each recipient and subcontractor of a recipient shall provide to each affiliated employee covered by this subchapter a fact sheet concerning the payment and enforcement requirements under §§ 2-220.03 and 2-220.08, and shall also post a notice concerning these requirements in a conspicuous site in its place of business. The Mayor shall provide the fact sheet and notice to each recipient which shall include:
June 8, 2006, D.C. Law 16-118, § 106, 53 DCR 2602
This section is referenced in § 2-220.04.