Non-Residential Floodproofing - Requirements and Certification for Buildings Located in Special Flood Hazard Areas in accordance with the National Flood Insurance Program [open pdf - 91KB]
"This bulletin describes design, construction, and planning requirements for the floodproofing of non-residential buildings under the 'National Flood Insurance Program (NFIP) regulations and how to correctly complete the NFIP's Floodproofing Certificate for Non-Residential Structures form. For the purposes of this bulletin, floodproofing means making a building watertight, substantially impermeable to floodwaters. Before a floodproofed building is designed, numerous planning considerations, including flood warning time, uses of the building, mode of entry to and exit from the building and the site in general, floodwater velocities, flood depths, debris impact potential, and flood frequency, must be addressed to ensure that dry floodproofing will be a viable floodplain management tool. These critical considerations are discussed within this bulletin."
Technical Bulletin 3-93
Federal Emergency Management Agency: http://www.fema.gov/