How to Request a Letter of Map Amendment (LOMA) or Letter of Map Revision Based on Fill (LOMR-F) [open pdf - 105KB]
"The Federal Emergency Management Agency (FEMA) applies rigorous standards to develop Flood Insurance Rate Maps (FIRMs) and uses the most accurate hazard information available. However, limitations in the scale or topographic detail of the source maps used to prepare a FIRM may cause small elevated areas to be included in a Special Flood Hazard Area (SFHA). SFHAs are high-risk areas subject to inundation by the base (1-percent-annual-chance)flood; they are also referred to as 1-percent-annual-chance floodplains, base floodplains, or 100- year floodplains. To change the flood hazard designation for properties in these areas, FEMA has established the LOMA process for properties on natural high ground and the LOMR-F process for properties elevated by the placement of fill. LOMAs and LOMR-Fs are letter determinations that officially amend an effective FIRM. They can establish that a property is not in an SFHA and, by doing so, remove the Federal flood insurance requirement."
Federal Emergency Management Agency: http://www.fema.gov/