Map Service Center and Questions About the NFIP  

To understand your flood risk and view your flood maps, visit the Flood Map Service Center (MSC), and National Flood Insurance Program & Answers to Questions about the NFIP

Map Change - Change Your Flood Zone Designation 

Digital Flood Insurance Rate Maps (DFIRMs) are based on the best hydrologic, hydraulic, topographic, and engineering modeling available at the time of creating the maps. However, no map is perfect, and no flooding situation is static. If a property owner believes that their property is mapped incorrectly, they have the opportunity to retain the services of an Arizona-licensed civil engineer or land surveyor to produce technical data and undertake the necessary engineering analysis to prove their case. The supporting data is attached to an application for a “Letter of Map Change” (LOMC). Letter of Map Change (LOMC) is a general term used to refer to the several types of revisions and amendments to FEMA maps that can be accomplished by letter. They include Letter of Map Amendment (LOMA), Letter of Map Revision (LOMR), and Letter of Map Revision based on Fill (LOMR-F). 

Change Your FEMA Flood Zone Designation 

Base Level Engineering (BLE) is an automated riverine hydrologic and hydraulic modeling approach that builds on lessons learned to produce a base line understanding of a community’s flood risk. 

BLE BROCHURE PDF