US Department of Homeland Security - United States Coast Guard

The Navigation Center operates services and provides information that enhances the safety, security, and efficiency of US waterways and civil GPS users.  These services include:

  • Operating the Nationwide Differential GPS System
  • Operating the Long Range Identification and Tracking business helpdesk
  • Operating the Nationwide Automatic Identification System
  • Publishing Notices to Mariners and the Light List
  • Disseminating navigation information through 24/7 operations center and the NAVCEN website
  • Managing the Integrated Aids to Navigation Information System
  • Managing electronic charting portfolios for US Coast Guard units
  • Serving as the primary US government interface with GPS users (except aviation and military)
  • Receiving and coordinating investigation of GPS outage reports