The work of Floodplain Managers is fundamental to the effective management of floodplain resources and flood mitigation. The following is an overview of the flood hazard mapping resources (products, services, and publications) that FEMA makes available to state and local floodplain managers and other state and local officials. These resources include information on the National Flood Insurance Program (NFIP) regulations, FEMA Letter of Map Change (LOMC) processes, FEMA guidelines and guidance documents, and training.
Through the implementation of local floodplain ordinances alone, approximately $1.1 billion in flood damages are prevented annually. Approximately 38 percent of all National Flood Insurance Program claims are repetitive loss claims. Residents in communities that participate in the Community Rating System may receive up to a 45 percent premium discount on their flood insurance policies.
Risk MAP Flood Risk Products
Know your local flood risk by viewing and downloading your community’s flood risk products from FEMA’s Map Service Center (MSC) Product Catalog. Flood risk products are non-regulatory resources that help communities gain a better understanding of flood risk and its potential impacts. FEMA provides these products in addition to the regulatory Flood Insurance Rate Map and Flood Insurance Study report. Flood risk products may include a Flood Risk Map (FRM), Flood Risk Report (FRR), and Flood Risk Database (FRD).
For more information, go to FEMA’s Risk MAP Flood Risk Products webpage.
Online Letter of Map Change (LOMC)
FEMA's Online LOMC is an internet-based tool that allows applicants to easily request map Amendments or Revisions. It is a convenient way for applicants to upload all information and supporting documentation and check the status of their application online. Users can submit LOMC requests and pay any associated fees through this tool instead of filing the MT-EZ, MT-1, or MT-2 paper forms submitted through the mail.
Community Preliminary Flood Hazard Data
FEMA has launched a new way to view your community’s preliminary flood hazard data—over the web and in one convenient location! Preliminary flood hazard data provide an early look at your home or community’s flood hazards. There are many benefits to viewing your community’s data before it becomes effective. For more information, visit the Preliminary Flood Hazard Data webpage.
Letter of Map Change Clearinghouse
FEMA’s Letter of Map Change (LOMC) Clearinghouse centralizes the administrative functions associated with processing MT-EZ, MT-1, and MT-2 requests. Specific activities include the creation of LOMC case files, uploading and scanning of data, processing associated fees, and distribution of LOMC requests to the appropriate location for review.
When submitting paper applications, requestors should mail their applications and supporting data to:
3601 Eisenhower Avenue, Suite 500
Alexandria, VA 22304-6426
Attn: LOMC Manager
For more information about the LOMC Clearinghouse, please contact the FEMA Map Information eXchange.
How to View and Obtain Flood Maps
Your local Community Map Repository, usually located in the planning and zoning office, has copies of flood maps. However, you may also view and order additional copies of the effective maps and other NFIP products through the FEMA Map Service Center. Please contact a Map Specialist at the FEMA Map Information eXchange for more information.
Check the Status of a Map Change Request
You can view recent priority map changes and check the Status of Map Change Requests.
Application Forms for Letters of Map Change
View and download the required FEMA forms, including application forms for conditional and final Letters of Map Amendment, Letters of Map Revision Based on Fill, and Letters of Map Revision on the Forms page.
Ordering Technical and Administrative Support Data
You can order by mail or facsimile a variety of technical and administrative support data for studies, map revisions, and map amendments.
Information for Hazus Models
The Hazards U.S. Multi-Hazard (Hazus) is a nationally applicable standardized methodology and software program that estimates potential losses from earthquakes, floods, and hurricane winds. FEMA developed Hazus under contract with the National Institute of Building Sciences. The following Hazus models are available:
What's New in Flood Hazard Mapping?
Keep up with the latest developments and find out What's New in Flood Hazard Mapping.
- Levee Guidance Documents
- Guidance Documents and Other Published Resources
- Managing Floodplain Development in Approximate Zone A Areas
- Questions and Answers Regarding the Rules at 44 CFR Part 65
- Available Technical Bulletins
Useful Resources and Tools
- ASFPM Certified Floodplain Manager Program
- Emergency Management Institute Training
- FEMA Forms
- FEMA Online Tutorials
- FEMA Floodplain Management Publications
- Compendium of Flood Map Changes
- Cooperating Technical Partners (CTP) Program
- Forms, Documents, and Software
- Engineers & Surveyors
- Insurance Professionals and Lenders
References and Tools
- Online LOMC
- Elevation Certificate
- Common Terms and Acronyms
- HAZUS Software
- How to Obtain a Flood Map
- GIS Tutorial Series
Other Related Federal Agencies and Associations
- U.S. Army Corps of Engineers (USACE)
- U.S. Geological Survey (USGS)
- Natural Resources Conservation Service (NRCS)
- Association of State Floodplain Managers (ASFPM)
- National Association of Flood and Stormwater Management Agencies (NAFSMA)
You can find additional information in the Floodplain Management section of the FEMA website.
Frequently Asked Questions
Go to Frequently Asked Questions for Floodplain Managers.
For More Information
For flood insurance-related questions, contact FloodSmart at 1-888-379-9531. For flood mapping-related questions, please contact a Map Specialist at the FEMA Map Information eXchange through the following methods:
- Call (1-877) FEMA MAP (1-877-336-2627) Monday through Friday, from 8:00 am to 7:00 pm (EST)
- Email FEMAMapSpecialist@riskmapcds.com
- Chat with a Map Specialist, Monday through Friday, from 9:00 am to 5:00 pm (EST)
Floodplain managers may also subscribe to receive updates on FEMA Flood Hazard Mapping activities via e-mail.