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use of p~ping facilities for subsurface drainage facilities for buildings to relieve external foundation wall and basement floor pressures~ and the installation of cuno~z valves on sewer lines or elimination of gravlty flow basement d ' ~ns. In any case, ~nere ~he adequacy of flood prcofing measures shall be in issue, the Building Official shall determine the matter. A person aggrieved by a ruling of the Building Ozf~zal may appeal such ruling to the Board of A~qusm~en~s and Appeals in accoraance wztn the pro- vzsmons of Section ±1~ ~nrougn ~ of the Building Code of the Czty- of Portsmouth. The Building Official and =h~.~e Board shall m~ke their decisions in accordance w_tn the rules, regulations and guidelines promulgated by the Federal Insurance Administrator. If no guidelines shall have been provided by the A~ministrator, ~he rules and regulations promulgated by the Office of the Chief of Engineers~ U~ S. Army, shall be applied. Sec%ion 40.1-6. Building permits zn flood hazard districts required; subdivision proposals in flood hazard districts; contents of application; standards for evaluation thereof. (a) Building permits shall be obtained from the Building Official prior to the commencement of construction of new structures or a~y substantial alteration to an existing structure in Flood Hazard District 1. Building permits shall be reviewed to determine whether the proposed construction (I) is protected against flood damage; (2) is designe~ (or modified) and anchored to preve~nt flotation~ collapse or lateral movement of the structure; (3) uses construction materials and utility equipment that are resistant to flood damage; and (4) uses construction methods and practices that will minimize flood damage. (b) Building permits shall also be obtained from~ the Building Official for major repairs to structures within Flood Hazard District 1. The application for such permit shall be re- viewed to determine that the proposed repair ~!) uses constrnc%ion materials and utility equipment that are resistant to flood damage; and (2) uses construction methods and practices that wilt minimize flood damage. (c) Ail proposed subdivisions or group housing projects reviewed in the office of the Building Official to assure that (i) all such proposals are consistent with ~ne need to minimize flood ~a~ge; (2) all public utilities and facilities~ such as sewer, gas~ electrica!, and wamer systems are located~ elevated and con- smructed to minimize or eliminate flood damage; and (3) adequate drainage is provided so as to reduce exposure to flood hazards. -4-