Passing along from Scott Martin
DOT Extended Pos/Nav Executive Committee and Working Group Members,
A Federal Register Notice has been issued regarding the Nationwide Differential Global Positioning System (NDGPS). A number of factors have contributed to the declining use of NDGPS and, based on an assessment by the Departments of Transportation and Homeland Security, as well as the U.S. Army Corps of Engineers, there is a proposal to shutdown and decommission 62 DGPS sites, which will leave 22 operational sites available to users in coastal areas.
Termination of the NDGPS broadcast at these sites is planned to occur on January 15, 2016. A map of the proposed changes to NDGPS coverage can be found athttp://www.navcen.uscg.gov/images/dgps/FRNDGPS.jpg
Widest dissemination of this notice is requested in order to ensure that comments are collected from users impacted by this change. Comments are due on or before November 16, 2015. The link to access the FRN and provide comments is as follows: https://www.federalregister.gov/articles/2015/08/18/2015-20401/nationwide-differential-global-positioning-system-ndgps