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160.3 . water surface elevations have been fur- nished by the Administrator, they shall apply. The symbols defining such special flood hazard designations are set forth in ~ 64.3 of this subchapter. In all cases the minimum requirements governing the adequacy of the flood pla.in management regulations for flood-prone areas adopted by a particu- lar community depend on the amount of technical data fOnnally provided to the community by the Anm;n;~trator. Minimum standards for communities are as follows: (a) When the Administrator has not defined the special flood hazard areas within a community, has not provided water surface elevation data. and has not provided sufficient data to identify the floodw&y or coastal high hazard area, but the community has indicated the presence of such hazards by sub- mitting an application to participate in the Program, the community shall: (1) Require permits for all proposed construction or other development in the community, including the place- ment of manufactured homes, so that it may determine whether such con- struction or other development is pro- posed within flood-prone areas; (2) Review proposed development to assure that all necessary permits have been received from those governmental agencies from which approval is re- quired by Federal or State law, includ- ing section 404 of the Federal Water Pollution Control Act Amendments of 1972,33 U.S.C. 1334; (3) Review all permit applications to determine whether proposed building sites will be reasonably safe from flooding. If a proposed building site is in a flood-prone area, all new construc- tion and substantial improvements shall (i) be designed (or modified) and adequately anchored to prevent flota- tion, collapse, or lateral movement of the structure resulting from hydro- dynamic and hydrostatic loads, includ- ing the effects of buoyancy, (ii) be con- structed with materials resistant to flood damage, (iii) be constructed by methods and practices that m;n;m;"e flood n"-m...ges, and (iv) be constructed with electrical, heating, ventilation, plumbing, and air conditioning equip.. ment and other service facilities that are designed and/or located so as to . . .... 44 CFR Ch. I (10..1-97 EcIltion) prevent water from entering or accu- mulating within the components dur- ing conditions of flOOding. (4) Review subdivision proposals and other proposed new development, in- cluding manufactured home parks or subdivisions, to determine whether such proposals will be reasonably safe from flooding. If a subdivision proposal or other proposed new development is in a flood-prone area, any such propos- als shall be reviewed to assure that (i) all such proposals are consistent with the need to minimize flood damage within the flood-prone area, (ii) all public utilities and facilities, such as sewer, gas, electrical, and water sys- tems are located and constructed to minimize or eliminate flood n"-m...ge, and (iii) adequate drainage is provided to reduce exposure to flood hazards; (5) Require within flood-prone areas new and replacement water supply sys- tems to. be designed to m;n;m;~ or eliminate infiltration of flood waters into the systems; and (6) Require within flood-prone areas (i) new and replacement sanitary sew- age systems to be designed to m;nhn;o:e or eliminate infiltration of flood wa- ters into the systems and discharges from the systems into flood waters and (ii) onsite waste disposal systems to be located to avoid impairment to them or conTAm;n"-tion from them during flooding. (b) When the Anm;n;~trator has des- ignated areas of special flood hazards (A zones) by the publication of a com- munity's FHBM or FIRM, but has nei- ther produced water surface elevatio~ data nor identified a floodway or coast-, al high hazard area, the community shall: (1) Require permits for all proposed construction and other developments including the placement of manufac- tured homes, within Zone A on the community's FHBM or FIRM; (2) Require the application of the standards in paragraphs (a) (2), (3), (4), (5) and (6) of this section to develop- ment within Zone A on the commu- nity's FHBM or FIRM; (3) Require that all new subdivision proposals and other proposed develop- ments (including proposaJs for manu- factured home parks and subdivisions) 236