Official U.S. government information about the
Global Positioning System (GPS) and related topics
Reports to Congress
Congressionally Directed Actions
- Federal Radionavigation Plan
- 2021 DOT Report on National Timing Resilience and Security Act: Roadmap To Implementation
- 2021 DOT Report on Complementary PNT and GPS Backup Technologies Demonstration
- 2020 DHS Report on PNT Backup and Complementary Capabilities to the GPS
- 2016 Air Force Quarterly Report on GPS Acquisition
- 2015 DOD Systems Engineering Annual Report (including GPS enterprise; 5.4 MB PDF) [deleted from osd.mil]
- 2015 Air Force Report on GPS Constellation Replenishment (3.2 MB PDF)
- 2014 Air Force Report on GPS III Multi-Year Procurement (2.7 MB PDF)
- 2013 Air Force Report on Lower Cost Solutions for Providing GPS Capability (unreleased)
- 2010 NDGPS Recapitalization Plan
- 2009 USTR Report on Galileo Market Access (PDF)
- Biennial GPS Reports (discontinued)
- 1999 Plan for Development of an Enhanced GPS (1.5 MB PDF)
- 1999 DOT Report on NDGPS and Additional Civilian GPS Signals (2.6 MB PDF)
GAO Audits
- 2022 Report on GPS Modernization
- 2021 Report on Defense Navigation Capabilities
- 2021 Report on GPS Modernization
- 2017 Report on GPS Modernization
- 2017 GAO Testimony on DOD Space Acquisitions (discusses GPS III, MGUE, OCX)
- 2017 Assessments of Selected Weapon Programs (discusses GPS III, MGUE, OCX)
- 2016 Report on Weapon System Requirements (discusses GPS III & OCX; 2.6 MB PDF)
- 2016 Review of Air Force Quarterly Report on GPS Acquisition
- 2015 Report on GPS OCX and MGUE
- 2015 Assessments of Selected Weapon Programs (including GPS III and OCX)
- 2014 Report on DOD Satellite Acquisition Challenges (including GPS III)
- 2013 Report on Mitigating Vulnerability to GPS Disruptions
- 2013 Review of Air Force Report on Lower Cost GPS Solutions
- 2013 Report on Selected Military Weapons Systems (including GPS III and OCX)
- 2012 Report on Unmanned Aircraft Systems (including GPS vulnerabilities)
- 2012 Report on DOD Satellite Acquisition Challenges
- 2010 Follow-Up Report on GPS Program
- 2009 Report on GPS Program
CBO Reports
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