Online Letter of Map 
Change Fact Sheet 

Contact Us 

For more information about 
the Online LOMC tool, go to: 
www.fema.gov/online-lomc 

For questions or 
troubleshooting, please call 
the FEMA Map Information 
eXchange (FMIX) at 

1-877-336-2627 

 

 


What is a Letter of Map Change (LOMC)? 

If a property owner thinks their property has been inadvertently mapped in 
a Special Flood Hazard Area (SFHA), they may submit a request to FEMA 
for a Letter of Map Change (LOMC). 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 (FIRM). If 
the LOMC request is granted, property owners may be eligible for lower 
flood insurance premiums, or the option to not purchase flood insurance. 

 

What is the Online LOMC? 

The Online LOMC is an internet-based tool that allows applicants to easily 
request a Letter of Map Amendment (LOMA). 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. 

 

Who can use the Online LOMC? 

Anyone, including home or property owners, their representatives, and 
professional surveyors and engineers, may submit a LOMA request using 
the Online LOMC. Certification by licensed engineering or surveying 
professionals is required for some supporting documentation, which may 
be scanned and uploaded by the applicant. 

 

What are the benefits? 

. Applicants may save information online and finish applying at 
their convenience 
. Clear and intuitive interface makes applying user-friendly 
. Frequent applicants can manage multiple LOMA requests online 
. Applicants can check their application status in real-time 
. More efficient communications with LOMC processing staff 
. Coming soon! Request all LOMC types via the Online LOMC