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Positioning, Navigation and Timing (PNT) & Spectrum Management

MOA between DOD and DOT for Civil use of GPS

This Memorandum of Agreement (MOA) establishes policies and procedures to ensure an effective working relationship between the Department of Defense (DOD) and the Department of Transportation (DOT) regarding civil use of GPS.

GPS Backup and Complementary PNT

DOT is working in conjunction with various Federal and civilian partners to develop and test critical backup GPS capability and complementary PNT services, ensuring a more robust and resilient national PNT architecture.

GPS Backup Demonstration: National Defense Authorization Act 2018, Section 1606

The Government, through a competitive acquisition process, has selected 11 candidate technologies to demonstrate Position and Timing capabilities in the absence of GPS over two demonstration sites.

Navigating from Point A to Point B safely and efficiently is critical to all modes of transportation making Positioning Navigation and Timing (PNT) capabilities and technologies a vital part of the global infrastructure.  The Department of Transportation is the lead for civil PNT requirements and represents the civil Departments and Agencies in the development, acquisition, management, and operations of the Global Positioning System (GPS). 

DOT’s Office of Positioning, Navigation, and Timing (PNT) and Spectrum Management coordinates the development of Departmental positions on PNT and Spectrum Policy to ensure safety, mobility, and efficiency of the transportation network. The Office is a program of the Office of the Assistant Secretary for Research and Technology.

While we lead the Department’s broad responsibilities on PNT matters, with a special focus on GPS interference, developing GPS civil requirements and coordinating civil PNT funding, our office plays an additional key role: we provide civil PNT systems and policy analysis and coordination for all Federal civil Departments and Agencies. We also represent those agencies in the development, acquisition, management, and operations of GPS, including requirements development.

Links and Documents:

The U.S. DOT Volpe Center is seeking proposals from industry to deploy very high Technical Readiness Level (TRL ≥ 8) Positioning, Navigation and Timing (PNT) services at operational or operationally equivalent field ranges. Offers due March 25, 2024.

U.S. Department of Transportation: GPS at 50, Results for Transportation and New Threats, TRB 103rd Annual Meeting, January 7-11, 2024, Washington, D.C.

Biden-Harris Administration issues a landmark National Spectrum Strategy November 13, 2023

Agenda from the 63rd Meeting of the Civil GPS Service Interface Committee-September 11-12, 2023

Memorandum of Agreement between the Department of Defense and the Department of Transportation for Civil Use of The Global Positioning System – August 28, 2023

U.S. Space-Based Positioning, Navigation and Timing (PNT) Status and Policy Update: Strategic Plan for Potential Interference (SPPI), PNT Advisory Board (PNTAB) Meeting - November 16, 2022

2021 Federal Radio Navigation Plan (FRP) July 2022

Complementary PNT and GPS Backup Technologies Demonstration Report – January, 2021

National Timing Resilience and Security Act: Roadmap To Implementation – January 2021

Federal Register Notice, and Agenda & Presentations for the 'Virtual' Workshop on GPS Jamming and Spoofing in the Maritime Environment – December 3, 2020

Federal Register Notice seeking public input to the National PNT R&D Plan required by Executive Order 13905 – August 10, 2020. 

pdf icon Executive Order on Strengthening National Resilience through Responsible Use of Positioning, Navigation, and Timing Services – February 12, 2020

Future Spectrum Requirements: An Analysis of Transportation Spectrum Needs 2019 through 2033, Final Report – April 2019

pdf icon United States Department of Transportation Global Positioning System (GPS) Adjacent Band Compatibility Assessment – April 1, 2018

pdf icon GPS Dependencies in the Transportation Sector: An Inventory of Global Positioning System Dependencies in the Transportation Sector, Best Practices for Improved Robustness of GPS Devices, and Potential Alternative Solutions for Positioning, Navigation and Timing – August 1, 2016