Program Funding

Defense

Timeline

• May 2, 2025: The White House releases the FY26 “Skinny Budget” to Congress.
• June 26, 2025: The Department of Defense publishes the DoD Budget Request

Procurement

• Line 11 - GPS III Follow-On - GPS III Follow On $109.944M (Page 147)
• Line 12 - GPS III Space Segment - $29.274M (Page 147)
• Line 13 - Global Positioning (Space) - $.870M (Page 147)
• Line 29 - Space Mods - $115.498M *Unclear what portion is GPS* (Page 148)
• Line 59 - NAVSTAR GPS Receivers (SPACE) - $45.701M (Page 98) 

Research and Development

• Line 10 - 1203164SF - NAVSTAR Global Positioning System (User Equipment) (SPACE) -
  $175.304M (Page 59)
• Line 25 - 1203269SF - GPS III Follow-On (GPS IIIF) - $179.249M (Page 60)
• Line 68 - 1206423SF - Global Positioning System III Operational Control Segment - $190.484M
  (Page 62)

Total # for GPS Program Funding: $730.826 Million

Transportation

Timeline

• May 2, 2025: The White House releases the FY26 “Skinny Budget” to Congress.
• May 30, 2025: The Department of Transportation publishes the FY26 Budget Estimates

Federal Aviation Administration (FAA)

Wide Area Augmentation System (WAAS) for GPS - $92M (Page 194)

Wide Area Augmentation System (WAAS) for Global Positioning System (GPS)
The budget requests $92.0 million in the F&E account for the continuation of correction calculations and
integrity messages for each GPS satellite. The WAAS program uses leased transponders on three
geostationary satellites to broadcast correction messages, enabling aircraft to obtain precise 3D
navigation. It supports NAS modernization by reducing reliance on ground-based navigation aids and
allowing more flexible flight paths. In FY 2026, incremental updates will include technology refreshes,
GPS compliance reviews, and research to enhance future satellite navigation capabilities.

View more information on the WAAS budget.

Office of the Secretary of Transportation (OST)

Research and Technology - PNT, GNSS, GPS - $8M (Page 228)

SEC. 109. Section 312 of title 49, United States Code, is repealed. (Page 43)

Sec. 109 Explanation Section 109 repeals the National Timing Resilience and Security Act (NTRSA)
which was enacted as section 514 of the Frank LoBiondo Coast Guard Authorization Act of 2018 (Public
Law 115-282) and codified in section 312 of title 49 United States Code – Alternative Timing System.
NTSRA directs DOT to establish certain technology services related to Global Positioning System (GPS)
resilience in a manner that runs counter to national interests, as well as more recently established
Administration policy. Informed by recent federal analyses, reports, and technology demonstrations, DOT
finds that: 1) no single solution or the provision of back-up or complementary positioning, navigation
and/or timing (PNT) services can meet the diversity of critical infrastructure application requirements,
and 2) it would be inefficient, anti-competitive, and potentially harmful to the existing market for back-
up/complementary PNT services for the Federal Government to procure or otherwise fund a specific
solution for non-federal users.

View more information on OST budget.

Positioning, Navigation and Timing (PNT) and Spectrum Management Program

DOT co-leads the federal role in PNT with the Department of Defense (DOD) by coordinating civil sector
PNT requirements and representing the civil (non-defense) departments and agencies in the development,
acquisition, management, and operations of the Global Positioning System (GPS). The Secretary of
Transportation is assigned this role by Space Policy Directive (SPD-7, U.S. Space-Based Positioning,
Navigation, and Timing Policy). The Secretary’s role also includes ensuring that GPS public safety of life
services meet or exceed international performance standards and promoting PNT resiliency for
transportation safety. In addition, the Spectrum Management program efforts address the Departments
radio frequency requirements noted in the U.S.C. Title 47 Telecommunications §300 et. seq. in other
legislation (i.e., Middle Class Tax Relief Act of 2012), and in Infrastructure Investment and Jobs Act
(IIJA), Departmental policy (i.e., DOT Order 5421.1A dated January 14, 2021); and fully supports the
Secretary’s priorities for transportation safety, as well as fostering technology innovation in transportation
by preparing for the future through the engagement of new navigation, surveillance, and communications
radio frequency spectrum to ensure safety without undermining innovative emerging capabilities. The FY
2025 efforts support implementation of national spectrum policy that incorporates transportation safety-
critical needs and requirements for spectrum-dependent communications, navigation, and surveillance
systems for all modes of transportation. Day-to-day responsibility for spectrum management are handled
by OST-R for cross-modal transportation issues, as well as surface transportation and in coordination with
the Federal Aviation Administration (FAA) for aviation and space transportation missions. DOT
recognizes radio frequency spectrum as critical to the safe and efficient use of the national transportation
system by the traveling public, the freight community, other commercial and private entities, as well as
other federal agencies using the roads, rails, waterways, and airspace within the United States.

FY 2025 projects support implementation of SPD-7, as well as the goals of EO 13905, Strengthening
National Resilience Through Responsible Use of PNT Services, by focusing on implementation of PNT
interference, detection, and mitigation capability, conducting research to toughen GPS user equipment,
and facilitating adoption of Complementary PNT services through implementation of the DOT
Complementary PNT Action Plan. The goals for FY 2026 are to implement a Global Navigation Satellite
System (GNSS) performance monitoring capability, transition automated GPS interference detection into
a fully common operational capability, ensure resilient PNT services for operations in the absence,
disruption, or manipulation of spacebased PNT and/or develop methods that utilize Complementary PNT
services, and conduct spectrum management and engineering research, analysis, and testing in support of
the National Spectrum Strategy.

FY 2025 Anticipated Accomplishments:

• Implementing a real-time GNSS performance monitoring and interference detection capability for
  protection of the GNSS radio frequency spectrum and ability to present information through a
  standard centralized common operational picture.
• Executing EO 13905 Vulnerability Assessment and Testing to support PNT Profile development
  and implementation of the National PNT R&D Plan objectives. Conducting requirements
  engineering efforts to address out-of-band spectrum, data and in-band GPS Radio Signal
  Authentication techniques in conjunction with DOD and DHS.
• Executing tasks in the DOT Complementary PNT Action Plan to facilitate critical infrastructure
  adoption of Complementary PNT technologies with alternative radio frequency spectrum bands.
• Development of the 2025 Federal Radionavigation Plan (FRP) in conjunction with DOD and
  DHS.

View more information on the Positioning, Navigation and Timing (PNT) and Spectrum Management Program.

OST-R leads federal civil agency positioning, navigation, and timing (PNT) requirements, evaluation of
technologies, and architecture development to enhance PNT resiliency; ensures protection of the Global
Positioning System (GPS) and other PNT and spectrum-based safety-of-life transportation capabilities
from harmful interference; and assesses availability of radiofrequency spectrum to meet current and
future transportation needs. These objectives support the Secretary’s priorities for transportation safety, as
well as fostering technology innovation in transportation by preparing for the future through the
engagement of new navigation, surveillance, and communications radio frequency spectrum to ensure
safety without undermining innovative emerging capabilities.

Focus areas for the PNT & Spectrum Management Program in FY 2025 include identification and
evaluation of transformative radiofrequency spectrum technologies to ensure safety for AVs as well as
innovations to improve spectrum sharing and efficiency in coordination with the National Science
Foundation Spectrum Innovation Initiative. Research will address mitigating cybersecurity risks through
resilient architectures, building in security by design, and strengthening security and resilience for critical
infrastructure. Efforts will focus on PNT capability gaps such as interference to GPS and other radio
frequencies supporting transportation applications and the need for PNT resiliency, including cyber
resiliency automated GPS interference detection, Strengthening National Resilience Through Responsible
Use of Positioning, Navigation, and Timing Services (EO 13905) implementation, GPS signal and data
authentication, implementation of the Complementary PNT demonstration recommendations and action
plan, and Counter-Unmanned Aerial Systems policy and coordination.

View more information on Positioning, Navigation and Timing and Spectrum Management

Total Budget for GPS Program Funding: $100 Million

On March 28, 2022, the White House released President Biden's Fiscal Year 2023 budget proposal. This is a list of the FY 2023 funding amounts requested, authorized, and appropriated for each element of the nation's GPS program, as well as other related budget items.

Each line item below provides external links to original source documents, including bills, report language, and agency budget justifications submitted to Congress.

The President's budget for FY 2023 requests $1.84 billion for the Department of Defense (DOD) GPS program, including U.S. Space Force procurement and research, development, testing, and evaluation (RDT&E).

These are the FY 2022 funding amounts requested, authorized, and appropriated for each element of the nation's GPS program, as well as other related budget items.

Each line item below provides external links to original source documents, including bills, report language, and agency budget justifications submitted to Congress.

This resource highlights legislative provisions in the funding bills for information only. The executive branch does not endorse any pending legislation except where explicitly noted.

On March 15, 2022, President Biden signed the Consolidated Appropriations Act, 2022, an omnibus funding measure that includes over $2 billion for the Department of Defense (DOD) GPS program.

The President's request was $1.8 billion, including U.S. Space Force procurement and research, development, testing, and evaluation (RDT&E).