Helpful Links

This page provides reference links to other websites with additional information about GPS.

GPS.gov provides links to federal agencies, GPS program contractors, and non-profit groups. We avoid linking to sites that promote specific commercial products, services, or views. 

Most of the links below will open in a separate browser window. Please report broken links.

• Department of Defense (DoD)
• Department of Transportation (DOT)
• Department of State
• Department of the Interior (DOI)
• Department of Agriculture (USDA)
• Department of Commerce (DOC)
• Department of Homeland Security (DHS)
• Joint Chiefs of Staff (JCS)
• National Aeronautics and Space Administration (NASA)
• National Security Council (NSC)
• Office of Science and Technology Policy (OSTP)
• Office of Management and Budget (OMB)
• Federal Communications Commission (FCC)

• Air Force Fact Sheet on GPS
• Satellite Navigation Information from Smithsonian Institution
• GPS Education Page at National Oceanic and Atmospheric Administration (NOAA)
• NOAA Article on GPS Surveying
• GPS Timing Products at the U.S. Naval Observatory (USNO)
• GPS Information at the U.S. Coast Guard Navigation Center (NAVCEN)
• GPS Education Page at the National Park Service
• GPS Homepage at the USDA Forest Service

• FAA Satellite Navigation Programs
• WAAS Status and Performance
• Nationwide Differential GPS System (NDGPS)
• Continuously Operating Reference Stations (CORS)
• Global Differential GPS System (GDGPS)
• International GNSS Service (IGS)

• Auburn University—GPS and Vehicle Dynamics Laboratory
• Illinois Institute of Technology—NavLab
• Institute of Navigation—Online Tutorials
• Ohio State University—Satellite Positioning and Inertial Navigation Laboratory (SPIN Lab)
• Ohio University—Avionics Engineering Center
• Seoul National University GNSS Lab
• Stanford University
  • Stanford Center for PNT
  • GPS Lab
• University of Calgary—Department of Geomatics Engineering
• University of Colorado at Boulder
  • Aerospace Engineering Sciences
  • Colorado Center for Astrodynamics Research
• University of New South Wales—Satellite Navigation and Positioning Lab (SNAPlab)

• International Committee on GNSS (ICG)
  • ICG Providers Forum
• International Association of Institutes of Navigation (IAIN)
  • Institute of Navigation (ION)
  • European Group of Institutes of Navigation (EUGIN)
  • German Institute of Navigation (DGON)
  • Italian Institute of Navigation (IIN)
  • Japan Institute of Navigation (JIN)
  • Netherlands Institute of Navigation (NIN)
  • Royal Institute of Navigation (RIN)
  • Australian Institute of Navigation (AIN)
  • Nordic Institute of Navigation (NNF)
• Institute of Electrical and Electronics Engineers (IEEE)
• Institute for Defense Analyses (IDA)
• RTCA
• Radio Technical Commission for Maritime Services (RTCM)