The Board of Zoning Adjustment may grant, as a special exception, a full or partial reduction in the GAR required under this chapter if, in addition to meeting the general requirements of Subtitle X, Chapter 9, the applicant demonstrates that providing the GAR is impractical as a result of equivalent sustainability measures already being implemented on the property that achieve the intent of the GAR through methods not available through the GAR requirement.
D.C. Mun. Regs. tit. 11, r. 11-C605