Check Section C.2 of your Elevation Certificate and see if both the elevation of the lowest floor and the lowest adjacent grade are at or above the Base Flood Elevation for the respective flood zone. Then, check Section C.2 of your Elevation Certificate to see if the North American Vertical Datum 1988 was used. If so, and both elevations are at or above the Base Flood Elevation, you may then contact FEMA at (877) 336-2627 and apply for a Letter of Map Amendment (if fill dirt was not used when your house was built) or for a Letter of Map Revision by Fill (if fill was brought in by the builder/developer).