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*** Special Notice: *** Please be advised that our mailing address has changed and is now: U.S. Coast Guard Navigation Center, NAVCEN MS 7310, 7323 Telegraph Road, Alexandria, VA 20598 - 7310. Mail sent to our previous address will not be delivered. Please contact us with concerns or questions. Our physical location remains the same. Thank you for your attention to this matter.
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News and Notices:
Item: An updated and corrected version of U.S. Coast Guard Commandant Instruction (COMDTINST) M16672.2D, Navigation Rules (International-Inland) is available as a free download. Read more...
Item: The RTCM Special Committee 104 is suggesting retirement of RTCM Message Types 4, 8, 11, 12, and 13. Any users requiring these specific RTCM Message Types, please contact DGPS System Support by 1900Z November 15, 2009.
Item: The 49th CGSIC Meeting presentations are now available and may be downloaded from the summary report.
Item: The Final Programmatic Environmental Impact Statement on the future of the LORAN-C has been published. The appendices are also available for download from our LORAN-C reference section.
Item: The Air Force Space Command has responded to recent GAO concerns regarding the GPS constellation. Read the article...
Item: The 2009 Light Lists have been published and are now available for download from our website...read more.
Item: You may view previous news items here.
Item: Get the latest News and Updates RSS Feeds (LNMs, LL Corrections)