Marine Safety Information Bulletins (MSIB)

Most Sector and District MSIBs are already available on the Coast Guard NAVCEN Website.
MSIBs may also include geospatial information NAVCENs Maritime Safety Information (MSI) App that can be viewed by clicking the checkbox for “MSIB Load” in the Map Layers.
To stay aware of regional safety conditions, commercial and recreational boaters are encouraged to subscribe to the appropriate Sector and/or District RSS Feed. You will receive e-mails with real-time updates, notifications and messages similar to those previously shared on Homeport.
National Level MSIBs will continue to be available through the appropriate HQ Offices, or at the Deputy Commandant for Operations MSIB site.
In addition to the MARSEC Dashboard, status changes will also be shared through the RSS Feeds, if subscribed, when Broadcast Notice to Mariners (BNMs) and Local Notice to Mariners (LNMs) are issued for the respective change.