CIVIC - SAFETY
LOCAL NOTICE TO MARINERS
This important navigation information
is now ONLY available via the internet.
Effective 1 April 2004,
the USCG will no longer print
and mail copies of each LNM.
The LNM is the primary means for disseminating information concerning aids to navigation, hazards to navigation, and other marine information of interest to mariners on the waters of the United States, it's territories, and possessions. These notices are essential to all navigators for the purpose of keeping their charts. Light Lists, Coast Pilots and other nautical publications up-to-date.
These notices are published weekly via on the World Wide Web. Vessels operating in ports and waterways in several districts will need to obtain the LNM's from each district in order to be fully informed.
The electronic versions of LNM appear on the U.S. Coast Guard Navigation Center's Website at https://www.dco.uscg.mil/Featured-Content/Mariners/Local-Notice-to-Mariners-LNMs/
All individuals are encouraged to register for List Server notification on the Navigation Center's Website, so when LNM are posted for the district(s) in which you are interested, you will receive automatic notification of their availability.
The function of the Block Island Fog Signal has changed.
The signal now only operates via remote activation.
To activate, boaters must key their microphone
on VHF channel 79 (156.975MHz) 5 times in succession.
This will activate the sound signal
and it will continue for the next 30-45 minutes.

2023 Update: At this point, almost all US fog signals
have been converted to remote activation
and do not automatically sound on their own.