Preliminary Flood Insurance Rate Maps (FIRMs) for Union County, New Jersey are now available. You can look up the flood zone and Base Flood Elevation (BFE) from the maps for a specific property using the What is My BFE? address lookup tool. This information is also available through FEMA’s Map Service Center, the official source for preliminary and effective regulatory FIRMs. Online tutorials are available from FEMA which provide assistance in using both the FIRM and the Flood Insurance Study Report. Additional information is also available through the Preliminary FIRM FAQ.