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Do you know what the Automatic Identification System (AIS) is? Find out here.
Chart depicting the Automatic Identification System (AIS)

News and Notices:
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Mariners are advised that over the course of the next several weeks, the Air Force will conduct an integration assessment of the current GPS Software Baseline. Please read the entire notice here...

Item: Registration is now open for the 50th meeting of the Civil GPS Service Interface Committee (USSLS/CGSIC), which will be conducted September 20-21, 2010 at the Portland, Oregon, Convention Center in conjunction with the ION GNSS 2010 meeting. Read more and register...
Item: You may view the Joint Statement on cooperation and release of the recently-concluded documents for the combined use of GPS & Galileo and WAAS & EGNOS.
Item: The GPS Systems Wing announced the public release of On Orbit Testing of the first GPS Block IIF Satellite. Read the announcement for details and watch this site for release of the test schedule.
Item: Coast Guard encourages prudent use of AIS messaging. Please review USCG Safety Alert 05-10 and our AIS Frequently Asked Questions and AIS Notices Section.
Item: The 2010 Light Lists have been published and are now available for download from our website...read more.
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 Air Force Space Command has responded to recent GAO concerns regarding the GPS constellation. Read the article...
Item: The Air Force Space Command has responded to recent GAO concerns regarding the GPS constellation. Read the article...
Item: You may view previous news items here.