D.C. Mun. Regs. tit. 11, § 322
322.1 Any use or structure permitted in R-2 Districts under §§ 302.1 and 303 through 306 shall be permitted as a special exception in an R-3 District if approved by the Board of Zoning Adjustment under § 3104.
322.2 A college or university use permitted in R-2 Districts under § 302.2 shall be permitted as a special exception in an R-3 District if approved by the Zoning Commission under § 3104.
SOURCE: § 3103.4 of the Zoning Regulations effective May 12, 1958; as amended by Final Rulemaking published at 47 DCR 9725, 9730 (December 8, 2000).