The Local Notice to Mariners is available by selecting the “LNMs” tab at
What is the difference between Notice to Mariners and Local Notice to Mariners?
The US Notice to Mariners corrects NGA and NOS charts using information collected from many sources, among them the Local Notice to Mariners published by the nine US Coast Guard Districts. The US Notice to Mariners will contain only those chart corrections of interest to ocean-going vessels.
How often is the Local Notice to Mariners published?
weekly
The USCG Local Notices to Mariners is updated weekly and is available for download in Portable Document File (PDF) Format.
What is a Broadcast Notice to Mariners?
(a) The Coast Guard broadcasts notices to mariners on its own or U.S. Navy radio stations to report navigational warnings containing information of importance to the safety of navigation of vessels, such as the position of ice and derelicts, defects, and changes to aids to navigation, and drifting mines.
WHO publishes Local Notice to Mariners?
(b) “Local Notices to Mariners” are published weekly by each Coast Guard district or more often if there is a need to notify mariners of local waterway information. Local Notices to Mariners are available for viewing on the Coast Guard Navigation Center Web site at
WHO Issues Local Notice to Mariners?
A Local Notice to Mariners is an authoritative instruction issued by a designated official, typically the harbormaster.
What is the main purpose of the Notice to Mariners?
A notice to mariners (NTM or NOTMAR,) advises mariners of important matters affecting navigational safety, including new hydrographic information, changes in channels and aids to navigation, and other important data. Over 60 countries which produce nautical charts also produce a notice to mariners.
What is the purpose of Notice to Mariners?
What is weekly Notices to Mariners?
Admiralty Weekly Notice to Mariners (NMs) are produced by the United Kingdom Hydrographic Office (UKHO) for the purpose of providing corrections and updates for all Admiralty nautical charts and publications for foreign and domestic vessel use.
What is T & P notices?
EXPLANATION OF TEMPORARY AND PRELIMINARY NOTICES Certain Notices to Mariners appearing in the monthly editions have a (T) or (P) appended to the regular number. These letters indicate that the information contained in the notice is of a temporary or preliminary nature.
How do I use weekly Notice to Mariners?
You can do so by using the Notices to Mariners (NtMs). In the ‘NtMs-database’ you can select the changes to each nautical chart by week number or chart number. You can also incorporate the changes by means of a weekly downloadable file on the page ‘Overview weekly editions’.
