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News and Notices:

Item: Get the latest News and Updates RSS Feeds (LNMs, LL Corrections)
Item: The U.S. Coast Guard issued a press release regarding the use of electronic charts and publications instead of paper charts, maps and publications.  Read more...
Item: On 26 January at 12:49 a.m. MST, the 2nd Space Operations Squadron at the 50th Space Wing, Schriever Air Force Base, Colo., verified users were experiencing GPS timing issues due to a Global Positioning System ground software issue. Please read the official press release.
Item: On 19 Jan 2016, the U.S. Coast issued a safety alert on GPS that underscores
the need to be aware of the possibility of GPS disruption, and to report them immediately. "Global Navigation Satellite Systems - Trust, But Verify,
Report Disruptions Immediately".
Item: The U.S. Coast Guard proudly continues to be the designated civilian liaison to the Global Positioning System.  Please avail yourself of a recently released U.S. Air Force article, "2015 Year in Review: Year of the GPS", which marks several achievements and milestones of GPS, including 20 years of full operational capability.
Item: The 2016 Light Lists have been published and are now available for download from our Light List page. Full updates will be available each week from our Weekly Update page.
Item: The United States Coast Guard has recognized Pole Star Space Applications (Pole Star) as the U.S. testing Application Service Provider (ASP) issuing Conformance Test Reports (CTR) on behalf of the United States. U.S. Vessel owner/operators subject to the LRIT regulation are encouraged to submit a Conformance Test request via the U.S. Coast Guard Navigation Center website to start the scheduling process. Vessel owner/operators should also note only the U.S. Coast Guard can initiate requests to Pole Star to schedule and perform LRIT conformance tests.
Item: Your input and/or contribution is requested for the next release of the American Practical Navigator, Pub. 09, more commonly known as "Bowditch".  Given that navigation has changed so much over the years, especially in the last decade, your participation in the development and writing of this important and historical book is crucial to both safe navigation as well as documenting the current state of the art of navigation.  Please see our Bowditch page for more information. information.
Item: The GPS Directorate has released a paper informing the public about the recent anomalous behavior of the 'Issue of Data, Clock' (IODC) and the 'Issue of Data, Ephemeris' (IODE) parameters in the GPS broadcast Legacy Navigation(LNAV) messages.   You may read the document here...