Notice To Mariners
The U.S. Coast Guard Navigation Center (NAVCEN) provides quality navigation services that promote safe transportation, support the commerce of the United States, and directly benefit world-wide international trade. As a Center of Navigation Excellence, NAVCEN is proud to be at the forefront of United States transportation and navigation initiatives, leading the nation and the international maritime communities into the Twenty-First Century.
This site is maintained for the purpose of disseminating the Navigational Status messages for the GPS, DGPS, and LORAN radionavigation systems.
Local Notice to Mariners
The United States Coast Guard list of changes in aides to navigation, chart changes and other pertinent information to mariners.