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Nationwide Differential GPS (NDGPS)
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NDGPS EXPANSION PROJECTS

The following information provides the status of ongoing efforts and projects. Efforts continue to prepare additional sites for operation. You may view the status of these sites from our site status page.

  • Eglin, FL: This site was declared operational 12 May 09.
  • Card Sound, FL: This site was declared operational 6 June 09
  • St. Mary's, WV: St. Mary's, WV: This site was declared operational 17 Dec 08.
  • Essex, CA: This site was declared operational 06 Mar 07.
  • Dandridge, TN: This site was declared operational 03 Jul 06.
  • Mequon, WI: This site was declared operational 06 Sep 06.