D.C. Mun. Regs. tit. 22-C, § 5000
5000.1 In establishing the distance between one (1) or more places, (such as the actual distance of a medical cannabis business from a school or recreation center, as defined in the Act), the distance shall be measured linearly by the Board and shall be the shortest distance between the property lines of the places.
5000.2 If a boundary line measured by the Board touches upon any portion of a parcel or lot, the parcel or lot shall be within the area being identified by the Board.
SOURCE: Emergency and Third Proposed Rulemaking published at 58 DCR 3299 (April 15, 2011)[EXPIRED]; as amended by Emergency and Fourth Proposed Rulemaking published at 58 DCR 7207 (August 12, 2011)[EXPIRED]; as amended by Final Rulemaking published at 58 DCR 10128, 10164 (December 2, 2011); as amended by Final Rulemaking published at 66 DCR 10217 (August 9, 2019); as amended by Final Rulemaking published at 71 DCR 002388 (March 8, 2024); as amended by Final Rulemaking published at 73 DCR 002136 (February 20, 2026).