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(ii) Obtain, if the structure has been floodproofed in accordance with paragraph (c)(3}(ii) of this section, the elevation (in relation to mean sea level) to which the structure was floodproofed, and {iii) Maintain a record of all such information with the official designated by the community under Sec. 59.22 (al (9}(iii}; (6) Notify, in riverine situations, adjacent communities and the State Coordinating Office prior to any alteration or relocation of a watercourse, and submit copies of such notifications to the Administrator; (7) Assure that the flood carrying capacity within the altered or relocated portion of any watercourse is maintained; (8) Require that all manufactured homes to be placed within Zone A on a community's FHBM or FIRM shall be installed using methods and practices which minimize flood damage. For the purposes of this requirement, manufactured homes must be elevated and anchored to resist flotation, collapse, or lateral movement. Methods of anchoring may include, but are not to be limited to, use of over-the-top or frame ties to ground anchors. This requirement is in addition to applicable State and local anchoring requirements for resisting wind forces. (c) When the Administrator has provided a notice of final flood elevations for one or more special flood hazard areas on the community's FIRM and, if appropriate, has designated other special flood hazard areas without base flood elevations on the community's FIRM, but has not identified a regulatory floodway or coastal high hazard area, the community shall: (1) Require the standards of paragraph (b) of this section within all Al-30 zones, AE zones, A zones, AH zones, and AO zones, on the community's FIRM; {2) Require that all new construction and substantial improvements of residential structures within Zones Al-30, AE and AH zones on the community's FIRM have the lowest floor (including basement) elevated to or above the base flood ievel, unless the community is granted an exception by the Administrator for the allowance of basements in accordance with Sec. 60.6 (b) or (c); (3) Require that all new construction and substantial improvements of non-residential structures within Zones Al-30, AE and AH zones on the community's firm (i} have the lowest floor (including basement) elevated to or above the base flood level or, (ii) together with attendant utility and sanitary facilities, be designed so that below the base flood level the structure is watertight with walls substantially impermeable to the passage of water and with structural components having the capability of resisting hydrostatic and hydrodynamic loads and effects of buoyancy; {4) Provide that where a non-residential structure is intended to be made watertight below the base €lood level, (i) a registered professional engineer or architect shall develop and/or review structural design, specifications, and plans for the construction, and shall certify that the design and methods of construction are in accordance with accepted standards of practice, for meeting the applicable provisions of paragraph (c)(3)(ii) or {c){8){ii) of this section, and (ii) a record of such certificates which includes the specific elevation (in relation to mean sea level}to which such structures are floodproofed shall be maintained with the of€icial designated by the community under Sec. 59.22 (a>(9)(iii); {5) Require, for all new construction and substantial improvements, that fully enclosed areas below the lowest floor that are usable solely for parking of vehicles, building access or storage in an G-3 Attachment number 2 Page 412 of 627