D.C. Mun. Regs. tit. 11-I, § 213
213.1 Loading is required in all D zones, based on the square footage of uses, and is subject to the requirements, permissions, and conditions in Subtitle C, Chapter 9.
SOURCE: Final Rulemaking published at 63 DCR 2447, 3041 (March 4, 2016 – Part 2).