Navigation Center Website Top Header Banner
Home | LNMs | Nav Rules | AIS | NAIS Data Request | MSI Data Downloads | GPS Constellation Status | GPS Testing | Almanacs | USCG Int'l Ice Patrol | Contact Us | Search
*** Special Notice *** The Navigation Center website will undergo scheduled maintenance on Thursday, June 28th from 9:30 AM to 10:45 AM Eastern Time. You may experience connectivity issues during this time frame. Please contact our 24-7 watch with any questions via our Contact Us page. Thank you - NAVCEN.
Mission Areas
Subscribe / Report (free)
Maritime Information
U.S. COAST GUARD NAVIGATION CENTER
NAVIGATION CENTER POINTS OF INTEREST
 
Project Poster Image Map


News and Notices:

Item: Get the latest News and Updates RSS Feeds (LNMs, LL Corrections)
Item: Users of the Global Positioning System (GPS) may experience a short period of high Horizontal Dilution of Precision (HDOP) / Position Dilution of Precision (PDOP) in the locations indicated in the HDOP Advisory for 22-23 June 2018.
Item: In response to reports of continuing GPS Interference in the Eastern Mediterranean Sea, the Maritime Administration has released Maritime Advisory 2018-007-GPS Interference-Eastern Mediterranean Sea.
Item: The United States Coast Guard is seeking input for a study of navigation requirements for the entire Western Rivers System in its efforts to improve the aids to navigation system. Please view the news release which explains the study, or go directly to the survey.
Item: The Department of Homeland Security has released a memorandum titled U.S. Owners and Operators using GPS to Obtain Time intended to provide an understanding of the possible effects of the April 6, 2019 GPS Week Number Rollover on Coordinated Universal Time derived from GPS devices.
Item: The Global Positioning Systems Directorate has proposed a change to remove the plane/slot/clock assignments provided in the daily GPS Operational Advisory message. This may impact users of information posted to our GPS Constellation Status page.
Item: DGPS sites will be decommissioned in a phased manner over the next three years. For more information, see the Federal Register Notice. 
Item: In response to increased Arctic shipping traffic, the United States and the Russian Federation have proposed a system of two-way routes for vessels to follow in the Bering Strait and Bering Sea.  You may read the Coast Guard news release or go directly to the IMO proposal document.
Item: The Coast Guard Towing Vessel National Center of Expertise Decision Aid is now available on the Navigation Center website.  All towing vessel operators as well as Coast Guard inspectors are encouraged to use this application in the performance of their duties.
 
U.S. Coast Guard Navigation Center - 7323 Telegraph Rd Stop 7310, Alexandria, VA 20598-7310 | (703) 313-5900 | Privacy Policy | Last Updated 04/17/2018