D.C. Mun. Regs. tit. 11, § 911
911.1 If the Board of Zoning Adjustment considers that it is appropriate in furthering the objectives of the Waterfront District, a building service trade, including but not limited to plumber, electrician, exterminator, or air-conditioning mechanic shall be permitted as a special exception in the W-1, W-2, and W-3 Districts when authorized by the Board under § 3104, subject to the provisions of § 909.
SOURCE: § 4402.36 of the Zoning Regulations, effective May 12, 1958; Final Rulemaking published at 47 DCR 9741-43 (December 8, 2000), incorporating by reference the text of Proposed Rulemaking published at 47 DCR 8335, 8433 (October 20, 2000); as amended by Final Rulemaking published at 51 DCR 3440 (April 2, 2004); as amended by Final Rulemaking published at 52 DCR 6358 (July 8, 2005).