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s �b11 //V1:VtV1A4411(0 ((( 1A), i/tXO fXOTA1 b,f1 Ag14 /E . All new construction and substantial improvements in Zones V1-30 are elevated on pilings and columns so that (i) the bottom of the lowest horizontal structural member of the lowest floor (excluding the pilings or columns) is elevated to or above the base flood level; and (ii) the pile or column foundation and structure attached thereto is anchored to resist flotation, collapse and lateral movement due to the effects of wind and water loads acting simultaneously on all building components. Wind and water loading values shall each have a one percent chance of being equalled or exceeded in any given year (100 -year mean recurrence interval). A registered professional engineer or architect shall develop or review the structural design, specifications and plans for the construction, and shall certify that the design and methods of construction to be used are in accordance with accepted standards of practice for meeting the provisions of (i) and (ii) of this paragraph. (b) All new construction and substantial improvements, within Zones V1-30 have the space below the lowest floor either free of obstruction or constructed with non -supporting breakaway walls, open wood lattice -work, or insect screening intended to collapse under wind and water loads without causing collapse, displacement, or other structural damage to the elevated portion of the building or supporting foundation system. For the purposes of this section, a breakaway wall shall have a design safe loading resistance of not less than 10 and no more than 20 pounds per square foot. Use of breakaway walls which exceed a design safe loading resistance of 20 pounds per square foot may be permitted only if a registered professional engineer or architect certifies that the designs proposed meet the following conditions: (i) breakaway wall collapse shall result from a water load less than that which would occur during the base flood; and, (ii) the elevated portion of the building and supporting foundation system shall not be subject to collapse, displacement, or other structural damage due to the effects of wind and water loads acting simultaneouslv on all buildings components (structural and non-struc- tural). Maximum wind and water loading values to be used in this determination shall have a one percent chance of being equalled or exceeded in any given year (100 -year mean recurrence interval). Such enclosed space shall be usable solely for parking of vehicles, building access, or storage.