Coalition Letter Jamming and Spoofing | GPS Innovation Alliance

FOR IMMEDIATE RELEASE

September 18, 2025

Leading Industry Associations Urge Immediate Action

to Address GPS Jamming and Spoofing

Coalition letter calls on the Departments of Defense and Transportation to address growing threats from harmful GPS interference occurring outside conflict zones

Signatories represent leaders in GPS, aviation, automotive, the business community, maritime, satellite, and public safety

Washington, D.C. (September 18, 2025) – A group of leading associations called on the Departments of Defense and Transportation to take immediate action to address the growing threat of GPS signal jamming and spoofing. This represents the most significant statement yet made on jamming and spoofing by key U.S. industries that rely on GPS to function, drawing attention to the critical role GPS plays in ensuring U.S. economic prosperity, public safety, and national security.

A letter signed by the GPS Innovation Alliance (GPSIA), Aircraft Electronics Association, Aircraft Owners and Pilots Association, Air Line Pilots Association, Int’l., Airlines for America, Alliance for Automotive Innovation, Aviation Spectrum Resources, Inc., BoatU.S., General Aviation Manufacturers Association, National Agricultural Aviation Association, National Air Transportation Association, National Business Aviation Association, Satellite Industry Association, and the U.S. Chamber of Commerce warns that harmful interference to GPS—once largely confined to conflict zones—is increasingly affecting civil operations in the transportation industry, as well as commerce conducted in international airspace and waters. Decisive actions by the Secretaries of Defense and Transportation can ensure that the U.S. military and commercial industries that operate in the National Airspace, rely on the maritime industry’s safe transit through international waters and its ability to load and unload goods in ports, or depend on the operations of other GPS-enabled industries remain safe and commerce is unimpeded. The signatories stand ready to work with the Trump Administration to address these challenges to U.S. national security, public safety, and economic prosperity.

What’s at stake for the U.S. economy? GPS is a key enabler of a modern aviation system that drove 5% of U.S. GDP in 2024, or $1.45 trillion, and a ports and maritime industry that contributed $2.9 trillion that same year – nearly 10% of GDP. With more than six billion GPS-enabled devices and receivers used by people around the world, GPS has contributed more than $1.4 trillion to the U.S. economy. And economic security is national security: The transportation industry is a key partner in the U.S. military’s logistics dominance.

Read the coalition letter to Secretaries Hegseth and Duffy here.

The associations emphasize the critical role of GPS in modern defense, aviation, maritime operations, and commerce. Since its introduction in 1993, GPS has revolutionized industries. The system operates at a 99.99% availability rate and has never experienced an outage. However, GPS programmatic challenges remain unaddressed: on-orbit satellites are years beyond their design life, ground system upgrades continue to be delayed, and the absence of counter-spoofing capabilities leave the system susceptible to growing threats. The coalition urges decisive action by the Departments of Defense and Transportation to modernize GPS, which will strengthen national security and public safety and ensure the United States remains resilient to jamming and spoofing threats.

“Airlines rely on GPS every day to deliver passengers and cargo safely and efficiently, both in the United States and around the world," said Airlines for America Vice President, Safety & Technical Operations Justin W. Madden. "Protecting GPS from interference is essential to ensuring continued safety, efficiency, and reliability in aviation operations. Airlines for America is proud to join this coalition in urging swift action to safeguard this vital resource."

“GPS is the backbone of modern defense, transportation, and commercial operations and fuels economic prosperity,” said Lisa Dyer, Executive Director of the GPS Innovation Alliance. “The United States has the technological know-how and expertise to accelerate GPS modernization and resiliency and preserve the nation’s and the international community’s longstanding trust in GPS.”

"GPS technology has long been essential, not just for business aviation, but more broadly, for the nation's economy, transportation, defense and other critical functions," said National Business Aviation Association President and CEO Ed Bolen. "Jamming, spoofing and other intentional disruptions to GPS pose a serious threat to safety, security and reliability. NBAA joins with the other organizations in partnering with the GPS Innovation Alliance to urge government leaders to work together on upgrades, investments and other approaches for hardening the technology from interference by nefarious actors."

The signatories look forward to working with the Departments of Defense and Transportation and other members of the Trump administration to advance GPS resilience. By taking action now, the nation’s leaders can strengthen the U.S. economy, advance transportation safety and efficiency, and further deter actors who have attempted to harm our national security and economic prosperity.

###