Revalidation and Re-Issuance Process
- Change My Flood Zone Designation
- LOMC Revalidation Process and Products
- For Information on LOMC Subscription Service
- For Questions on Revalidation Process and To Order Copies of Letters
- LOMCs That Are Not Revalidated
- For More Information
When a new or revised Federal Emergency Management Agency (FEMA) Flood Insurance Rate Map (FIRM) or Digital Flood Insurance Rate Map (DFIRM) panel becomes effective, it automatically supersedes previously issued LOMCs for the area covered by that panel, including Letters of Map Revision (LOMRs), Letters of Map Revision Based on Fill (LOMR-Fs), and Letters of Map Amendment (LOMAs) that have been issued for property(ies) on the revised FIRM or DFIRM panel. LOMCs are documents issued by FEMA that revise or amend the flood hazard information shown on the FIRM or DFIRM without requiring the FIRM or DFIRM to be physically revised and republished.
If a property owner thinks their property has been inadvertently mapped in a Special Flood Hazard Area, they may submit a request to FEMA for a Letter of Map Change. A SFHA is defined as the area that will be inundated by the flood event having a 1-percent chance of being equaled or exceeded in any given year. A LOMC reflects an official revision/amendment to an effective Flood Insurance Rate Map. If the LOMC request is granted, property owners may be eligible for lower flood insurance premiums, or the option to not purchase flood insurance.
Applicants can now use the Online LOMC, an internet-based tool, to easily request a Letter of Map Amendment. A LOMA is a letter from FEMA stating that an existing structure or parcel of land - that is on naturally high ground and has not been elevated by fill - would not be inundated by the base flood. This new tool is a convenient way for applicants to upload all information and supporting documentation and check the status of their application online. Users can submit LOMA requests through this tool instead of filing the MT-EZ paper form via mail.
Get started today using the new Online LOMC application.
LOMC Revalidation Process and Products
In recognizing that some LOMCs may still be valid even though the flood hazard information on the FIRM has been revised, FEMA has established an automatic process for revalidating LOMCs. This automatic process to revalidate LOMCs includes a detailed comparison of the Base (1-percent-annual-chance) Flood Elevations (BFEs) shown on the new or revised FIRM or DFIRM and the lowest adjacent grade or lowest lot elevation of previously issued LOMCs. The determinations for those structures or lots that are above the new or modified BFE or are located in areas of the community that are not affected by updated flood hazard information are revalidated through a formal determination letter—called a LOMC Revalidation, or LOMC-VALID, letter—that FEMA issues to community officials immediately preceding the effective date of the new or revised FIRM or DFIRM. FEMA also mails the LOMC-VALID letter, which is effective on the day following the effective date, to the community's map repository to be kept on file. For additional information on the LOMC revalidation process, interested parties are encouraged to read Subsection 1.15 (Revalidation Processing) of FEMA's Document Control Procedures Manual.
For Information on LOMC Subscription Service
The LOMC-VALID letter is included in the LOMC Subscription service data package. This service distributes data to subscribers via a web portal on the Map Service Center (MSC). Interested parties are encouraged to read the online LOMC Subscription flyer for information about the service and how to subscribe.
For Questions on Revalidation Process and To Order Copies of Letters
If you have questions about revalidation process or LOMC-VALID letters, please call the FEMA Map Information eXchange, toll free, at 1-877-FEMA MAP (1-877-336-2627). To obtain a copy of a specific LOMC-VALID letter, contact the map repository for the community in which the property is located or send a written request to the address listed below. A fee will be charged for all letters obtained.
FEMA Engineering Library
847 S. Pickett Street
Alexandria, VA 22304
LOMCs That Are Not Revalidated
LOMCs that have been issued for multiple lots or structures where the determination for one or more of the lots or structures have changed cannot be revalidated through the automatic process described above. Further, on occasion, LOMCs are inadvertently left out of the revalidation process. To request that FEMA review a LOMC that has not been included in a LOMC-VALID letter, please submit the following:
- A letter requesting the re-issuance (Please provide the case number of the LOMA or LOMR-F to be re-issued), and
- A copy of the LOMA or LOMR-F to be re-issued, if available.
FEMA will then review the case file and issue a new letter reflecting its determination. All requests should be sent to the following address for processing:
847 South Pickett Street
Alexandria, VA 22304-4605
To expedite processing, please address your request to the attention of the following processing specialists:
Attention: LOMA DEPOT (Use for LOMAs, LOMR-Fs, Conditional Letters of Map Revision-Based on Fill, and Conditional Letters of Map Amendment)
Attention: LOMR DEPOT (Use for Letters of Map Revision and Conditional Letters of Map Revision)
For More Information
For more information or additional assistance: