Shown below are points of interest regarding navigation, navigation safety, or other Navigation Center missions. The links will stay on this page for approximately ninety days and then will be removed. The documents they linked to will be archived. You may search our site, including the archives, by keyword, to find the document, publication, or other note of interest for which you may be looking.

• Transportation Worker Identification Requirements (TWIC): By April 15, 2009, all USCG credentialed mariners will be required to hold a TWIC in certain situations. Read more...
• The U.S. Dept of Transportation approved a decision to continue the inland component of the National DGPS. Read more...
• CG High Freq Radiotelex (SITOR) AMVER and OBS service discontinued from all locations except Guam on 30 Sept 2008. Read more...
• For a limited period beginning June 15, 2008, NOAA RNCs will not be updated for Notices to Mariners or for new editions of the nautical charts. Read more...
• DoD Announcement: Success In Intercepting Non-Functioning Satellite in final orbits. Read more...
• The GPS Community gained approval to set SVN23 (PRN32) usable, mostly likely on 19 FEB 2008. Read
  the full text of the General Advisory 2008016 (scroll down to the bottom of the linked page). Also please read the U.S. Air Forces Memorandum for GPS Users and User Equipment Manufacterers.
• Adoption of a National Backup System to GPS. On Feb 7th, 2008, DHS issued a statement regarding the adoption of eLoran (enhanced LORAN) as the back to GPS...
• Reported GPS/AIS User Equipment Problems Involving PRN32. Read our notice...
• Please see our page regarding the ceasing of HF Radio Weather Broadcasts. The U.S. Air Force has released a media announcement concerning the transition from the legacy GPS Master Control Station (MSC) to a new GPS ground segment control system called "Architecture Evolution Plan" (AEP). You may read it here.
• The U.S. DOT approved a decision to continue the inland component of the NDGPS, which provides an accurate, highly-reliable, real-time GPS correction signal. The decision is based on the results of the NDGPS user assessment conducted by the Research and Innovative Technology Administration (RITA). Read the DOT press release....
• A decision has made to continue providing high frequency (HF) radio broadcasts of weather forecasts and warnings...Final Report now available: A Business Case for the Continuance of the USCG High-freq Broadcasts of National Weather Service Marine Weather Forecasts.
• September 7, 2007; Please read Coast Guard Marine Safety Alert 2-07 (PDF, 85K) regarding marine radios and AIS equipement.
• The Department of Transportation (Research and Innovative Technology Administration) and the U.S. Coast Guard request your comments regarding need to continue to operate the inland component of the Nationwide Differential Global Positioning System (NDGPS) Program. Please read our introductory page and the notice and submit your comments to the Docket Management Website. Use docket number 28836.
• The Coast Guard requests public participation regarding its intent to prepare an Environmental Impact Statement on the Future of LORAN. Please read the notice and submit your comments to the Docket Management Website. Please do not submit comments via this website, but instead, use the Docket Management Website, the official comment submission platform. Use docket number 28460. Comments must be submitted by August 31st, 2007.
• The Coast Guard is soliciting public comment on the need to continue providing high frequency (HF) radio broadcasts of weather forecasts and warnings. Please read the notice and submit your comments to the Docket Management Website. Please do not submit comments via this website, but instead, use the Docket Management Website, the official comment submission platform.
  Comments must be submitted by August 24th, 2007. Use docket number 27656.