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96R 4 . 5. Use of Available Flood Data. The final rule revises the requirement at §60 .3(b) (4 ) that communities obtain, review, and reasonably utilize base flood data available from any source to regulate construction in Zone A. If your community has flood hazard areas which are designated as 2one'A or could annex such areas, you must revise your ordinance to include the fo?1.0wing or its equivalent: The (local administrator) shall obtain, review and reasonably utilize any base flood elevation and floodway data available from a Federal, State, or other source, as criteria for requiring that new .construction, substantial improvements; or other development in 2 one. A _ (reference provisions of your ordinance which meet 960 .3(c) (2) , (3) , (5) and (6) and (d ) (3)j . Note that available base flood data include data submitted with subdivision proposals and other proposed developmen't-s greater than 50 lots or 5 acres, whichever is less , including manufactured home parks and subdivisions (see §60.3(b) (3) 1 . 6. Elevation Certification. Current NFIP criteria require that communities obtain and maintain on file the elevation of the lowest floor (including basement) of new and substantially improved structures in all special flood hazard areas. The final rule removes this requirement in Zone A except in those instances where base flood elevation data from other sources are utilized (e.g. , as provided for in §60. 3(b) (41 of NFIP criter- ia] . You may modify your ordinance accordingly.. Please be aware that substantially lower flood insurance rates are available for individuals that construct to these other available base flood elevations and submit elevation certificates as part of their flood insurance applications . You must continue to obtain lowest floor elevations in all special flood hazard areas other than Zone A. 7. Functionally Dependent Uses - The final rule adds a special provision regarding the issuance of variances for functionally dependent uses. You are not required to make this change and should do so only if your community has navigable waterways and has encountered difficulties in applying NF31", criteria to these uses. To make this change, add the definition of 'func- tionally dependent use" in the final . rule to the definitions sections of your ordinance. Also add the variance provision at §60. 6(a) (7 ) of the final -rule to the variance vz-ov is ions in your ordinance.