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floodwaters. To meet this requirement, the openings must either be certified by a professional engineer or architect or meet the following minimum design criteria: 1) Provide a minimum of two openings on different sides of each enclosed area subject to flooding. 2) The total net area of all openings must be at least one (1) square inch for each square foot of enclosed area subject to flooding. 3.) If a building has more than one enclosed area, each area must have openings to allow floodwaters to automatically enter and exit. 4) The bottom of all required openings shall be no higher than one (1) foot above the adjacent grade. 5) Openings may be equipped with screens, louvers, or other opening coverings or devices, provided they permit the automatic flow of floodwaters in both directions. 6) Foundation enclosures made of flexible skirting are not considered enclosures for regulatory purposes, and, therefore, do not require openings. Masonry or wood underpinning, regardless of structural status, is considered an enclosure and requires openings as outlined above. (f) Coastal high-hazard Zones. Because of special flood hazards associated with wave wash, the following provisions shall also apply to coastal high- hazard areas: (1) All new construction shall be located landward of the reach of mean high tide. (2) No fill shall be used as structural support. (3) Within V -zones on the Flood Insurance Rate Map, all building permits shall contain the elevation (in relation to mean sea level) of the bottom of the lowest horizontal structural member of the lowest floor (excluding pilings and columns) of all new and substantially improved structures and shall state whether or not such structures contain a basement. (4) All new construction and substantial improvements elevated on pilings and columns shall have the bottom of the lowest horizontal