D.C. Mun. Regs. tit. 22-C, § 5700
5700.1 A licensed internet retailer or retailer shall not receive or purchase medical cannabis from a source other than a cultivation center or manufacturer licensed in the District of Columbia.
5700.2 It is a violation for the retailer to allow a person to possess, use, or consume any cannabis or cannabis products not sold or distributed by a licensed internet retailer or retailer.
Source: Notice of Emergency and Third Proposed Rulemaking published at 58 DCR 3299 (April 15, 2011)[EXPIRED]; as amended by Notice of Emergency and Fourth Proposed Rulemaking published at 58 DCR 7207 (August 12, 2011)[EXPIRED]; as amended by Notice of Final Rulemaking published at 58 DCR 10128, 10211 (December 2, 2011); as amended by Final Rulemaking published at 73 DCR 002136 (February 20, 2026).