D.C. Mun. Regs. tit. 11, § 2915
2915.1 All uses not permitted as a matter-of-right in the C-3-C District but permitted as special exceptions in the C-1, C-2, and C-3 Districts are permitted as special exceptions in the USN District if approved by the Board of Zoning Adjustment under § 3104, except that Sexually-Oriented Businesses shall be prohibited.
SOURCE: Notice of Final Rulemaking published at 58 DCR 4788, 4801 (June 3, 2011).