FEMA Technical Bulletin 1 / August 2008 (TB 1-08)
Provides guidance on the NFIP regulations concerning the requirement for openings in below-Base Flood Elevation foundation walls and walls of enclosures for buildings located in Zones A, AE, A1-A30, AR, AO, and AH.
On page 25/26 you will find a section entitled “Engineered openings with ICC-ES Evaluation Reports” that states for engineered openings with ICC-ES Evaluation Reports the certification required is, "a copy of the Evaluation Report that documents that the engineered openings meet the performance requirements of the NFIP and the building code, and that specifies the number of such openings that are required for a specified square footage of enclosed area below the BFE..”
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ICC-ES Report ESR-2074 Evaluation (Feb. 2009)

This evaluation report states that one 16" x 8" SMART VENT unit is certified to provide 200 sq/ft of flood protection and should be attached to the elevation certificate to submit to your insurance agent. Please circle the SMART VENT model used in section 3.3 or section 3.4 of this report.
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NFIP Bulletin W-08086 October 2008
 The purpose of this memorandum is to clarify the alternative measures listed in the Flood Insurance Manual for meeting the National Flood Insurance Program (NFIP) openings requirement. This is written for WYO Principal Coordinators and NFIP Servicing Agents to restate the documentation that is required for engineered openings.
Note in the second bullet point where is states: "For engineered openings for which the ICC Evaluation Service, Inc., has issued an Evaluation Report, a copy of the Evaluation Report is required."
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