In any SFHA, a building permit issued by DCRA shall be required for all new construction or development, as defined in § 3199.1 of this Chapter.
DCRA shall not issue a building permit for any project in an SFHA unless DDOE and all other responsible agencies have determined that the proposed work to be undertaken will be in conformance with the requirements of this Chapter and all other applicable codes and regulations within each agency's authority.
Before DCRA issues any building permit in any SFHA, DCRA and DDOE shall review the permit application to determine if the applicant has obtained all other governmental permits required by the District of Columbia and Federal law, such as those required by the Federal Clean Water Act, 1334 U.S.C. § 404. No permit shall be issued until this determination has been made and permits have been obtained.
DDOE will review building permits to ensure that no encroachment, alteration, or improvement of any kind shall be made to any watercourse which would reduce the flood carrying capacity of the watercourse.
The applicant shall notify the National Flood Insurance Program (NFIP), the Floodplain Administrator, and all adjacent communities before altering or relocating any watercourse.
D.C. Mun. Regs. tit. 20, r. 20-3103