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Federal Emergency Management Agency §604 • ,." within Zones A1-30 or AE on the com- (i) Determine the A1-30 or AE. AH. munity's Flood Insurance Rate Map, AO, or A Zone base flood elevation; and and, if appropriate, has designated AH (ii) Using this elevation apply the re- zones, AO zones, A99 zones, and A zones quirements of paragraphs (cX1) on the community's Flood Insurance through (cX14). Rate Map, and has identified flood pro- (7) Notify the permit applicant that tection restoration areas by designat- the area has been designated as an AR. ing Zones AR, AR/A1-30, AR/AE, AR/ AR/A1 AR/AE, AR/AH. AR/AO. or AH, AR/AO, or AR/A, the community AR/A Zone and whether the structure shall: will be elevated or protected to or (1) Meet the requirements of para- above the AR base flood elevation. graphs (c) (1) through (14) and (d) (1) (41 FR 46975. Oct. 26. 19761 through (4) of this section. (2) Adopt the official map or legal de- EDITORIAL NOTE: For FEDERAL. REGISTER ci- scription of those areas within Zones Lion Affected the Finding see the List ti Sec- AR, AR/A1-30, AR/AE, AR/AH, AR/A, or this olume in the Finding Atds section of this volume. AR/AO that are designated developed areas as defined in §59.1 -in accordance 460.4 Flood plain management criteria with the eligibility prbtdiires under for muds de (Le., mudflow) 465.14. areas. (3) For all new construction of struc- The Administrator will provide the tures in areas within Zone AR that are data upon which flood plain manage - designated as developed areas and in meet regulations shall be based. If the other areas within Zone Alt where the Administrator has not provided suffi- AR flood depth is five feet or less: cient data to furnish a basis for these (i) Determine the lower of either the regulations in a particular community, AR base flood elevation or the ele- the community shall obtain, review, vation that is 3 feet above highest adja- and reasonably utilize data available cent grade; and from other Federal. State or other (ii) Using this elevation, require the sources pending receipt of data from standards of paragraphs (c) (1) through the Administrator. However, when spe- (14). cial mudslide (Le.. mudflow) hazard (4) For all new construction of struc- area designations have been furnished tures in those areas within Zone AR by the Administrator, they shall apply. that are not designated as developed The symbols defining such special areas where the AR flood depth is mudslide (i.e., mudflow) hazard des - greater than 5 feet: ignations are set forth in §64.3 of this (i) Determine the Alt base flood ele- subchapter. In all cases, the minimum vation; and requirements for mudslide (i.e., mud - (ii) Using that elevation require the flow) -prone areas adopted by a particu- standards of paragraphs (c) (1) through lar community depend on the amount - (14). of technical data provided to the com- (5) For all new construction of struc- munity by the Administrator. Mini - tures in areas within Zone AR/A1 -30, mum standards for communities are as follows: AR/AE, AR/AH, AR/AO. and AR/A: (1) Determine the applicable ele- (a) When the Administrator has not vation for Zone AR from paragraphs (3) yet identified any area having the com- and (4); munity as an area having special ele- flood el (fi) Determine the base floo mudslide (i.e., mudflow) hazards, but vation a flood depth for the o de el n ing A1-30, AE. AH, AO and A Zone; and the community has indicated the pres- d apps of such hazards by submitting o- (iii) Using the higher elevation from gram, the communitylsshhall fn the Fro - (i) and (ii) require the standards of (1) Require permits for all propo8ed Paragraphs (c) (1) through (14). construction or other development in (6) For all substantial improvements the community so that it may deter - to existing construction within Zones mine whether development is proposed AR/A1 -30, AR/AE, AR/AH. AR/AO, and within mudslide (i.e.. mudflow) -pro AR/A: areas; 241