D.C. Mun. Regs. tit. 11, § 537
537.1 The provisions of § 411 shall also regulate roof structures in SP Districts.
537.2 The gross floor area of roof structures permitted under this section shall not be counted in determining the amount of off-street parking as required elsewhere in this title.
SOURCE: §§ 4306.1 and 4306.2 of the Zoning Regulations, effective May 12, 1958; as amended by Final Rulemaking published at 47 DCR 9741-43 (December 8, 2000), incorporating by reference the text of Proposed Rulemaking published at 47 DCR 8335, 8378 (October 20, 2000).