Official U.S. government information about the
Global Positioning System (GPS) and related topics
Major GPS Policy Documents
On this page:
On other pages:
Presidential Policies
- 2021 U.S. Space-Based Positioning, Navigation, and Timing Policy (SPD-7)
- 2020 National Space Policy
- 2020 Cybersecurity Principles for Space Systems (SPD-5, federalregister.gov)
- 2020 Executive Order on Strengthening Resilience Through Responsible Use of Positioning, Navigation, and Timing Services (E.O. 13905, federalregister.gov)
Historic Policies (no longer in effect)
- 2010 National Space Policy
- 2004 U.S. Space-Based Positioning, Navigation, and Timing Policy
- 1996 U.S. Global Positioning System Policy (archives.gov)
Return to top of pageOrganizational Charters and Agreements
- National Executive Committee for Space-Based Positioning, Navigation, and Timing
- National Coordination Office for Space-Based Positioning, Navigation, and Timing
- National Space-Based Positioning, Navigation, and Timing Advisory Board
- National Space-Based Positioning, Navigation, and Timing Systems Engineering Forum
- 2023 Memorandum of Agreement Between DoD and DOT on Civil Use of GPS
- 2017 Interagency Memorandum of Agreement on GPS User Support
Policy Announcements
- 2018 Notice on Discontinuance of NDGPS
- 2016 Notice on Downsizing of Nationwide Differential GPS (NDGPS)
- 2008 Notice on Codeless/Semi-Codeless Access to GPS
- 2008 Decision to Continue Inland Component of Nationwide Differential GPS (NDGPS)
- 2008 Decision to Implement eLoran as National Backup to GPS
- 2007 Decision to Eliminate Selective Availability Feature from GPS III
- 2006 Announcement of Availability of Second Civilian GPS Signal
- 2003 U.S. Policy Statement Regarding Civil GPS Availability
- 2002 Action Plan for Transportation Infrastructure Relying on GPS
- 2001 Special Notice on GPS Availability
- 2000 Decision to End Use of GPS Selective Availability
- 1999 Announcement of Funding and Frequencies for GPS Modernization
- 1998 Decision to Add New Civilian Signals to GPS
- 1983 Decision to Make GPS Available to Civilian Community
Fact Sheets
Studies
- 2021 DOC Evaluation of Dependencies of Critical Infrastructure Timing Systems on GPS (5.4 MB PDF)
- 2019 DOC Study on Economic Benefits of GPS (3.3 MB PDF)
- 2018 GPS Adjacent Band Compatibility Assessment
- 2013 National Risk Estimate of Risks to U.S. Critical Infrastructure from GPS Disruptions
- 2012 Studies on LightSquared Interference to GPS
- 2011 Studies on LightSquared Interference to GPS
- 2010 US-EU Technical Note on Combined Performances for Open GPS/Galileo Receivers
- 2010 US-EU Technical Note on Combined Performances for SBAS Receivers Using WAAS and EGNOS
- 2008 NSTAC Report to the President on Commercial Communications Reliance on the Global Positioning System
- 2006 DOC/DOT Study on the Economic Benefits of the Second Civilian GPS Signal (L2C)
- 2005 Report of the Defense Science Board Task Force on the Future of the Global Positioning System
- 2004 IGEB Study -- GPS L1 Civil Signal Modernization (L1C)
- 2001 DOT Volpe Center Report -- Vulnerability Assessment of Transportation Infrastructure Relying on the Global Positioning System
- 1998 DOC Assessment of the Economic Impacts of GPS Modernization
- 1995 RAND Report -- The Global Positioning System: Assessing National Priorities
- 1993 Joint DOD/DOT Task Force Report -- The Global Positioning System: Management and Operation of a Dual Use System
