Click on the map below to read the latest USCG Notice to Mariners for your location:
Note: The Heartland District LNMs are divided into two sections: one for the Gulf Coast, and one for the Western Rivers. Please use the appropriate link to view the LNM for which you are looking.
The USCG Local Notices to Mariners is updated weekly and is available for download in Portable Document File (PDF) Format. You may download the free Adobe Reader.
Broadcast Notices to Mariners Search Tool
Please review the following USCG District boundary information.
More Notices to Mariners...
- The Notice to Mariners (NGA)
- Canadian Notice to Mariners (Notmar)
- U.S. Army Corps of Engineers Notice to Navigation Interests (NTNI)
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More navigation information can also be found in the U.S. Coast Pilot.