D.C. Mun. Regs. tit. 11, § 2511
2511.1 For the purpose of administering this title, that portion of the Act referred to in § 2510.1 that designates certain streets as 'business streets' shall be interpreted to mean those sides and portions of any street located in a Special Purpose, Waterfront, Mixed Use, Commercial, or Industrial District.
SOURCE: § 7511.1 of the Zoning Regulations, effective May 12, 1958 (renumbered § 7610.1 in the April 1981 edition of the Zoning Regulations); Final Rulemaking published at 47 DCR 9741-43 (December 8, 2000), incorporating by reference the text of Proposed Rulemaking published at 47 DCR 8335, 8528 (October 20, 2000).