D.C. Mun. Regs. tit. 11-A, § 204
204.1 Subtitle U contains use permissions for R, RF, RA, MU, ARTS, D and PDR zones. Use permissions for all other zones are contained in their respective subtitles.
204.2 Subtitle B contains use definitions, use categories, and use groups.
SOURCE: Final Rulemaking published at 63 DCR 2447, 2623 (March 4, 2016 – Part 2).