FAA Publishes Updated GPS/GNSS Interferences, Jamming and Spoofing Resource

March 23, 2026

The FAA recently released its updated GPS and Global Navigation Satellite System (GNSS) Interference Resource Guide Version 1.1., which focuses on jamming and spoofing trends, impacts on aircraft systems, suggested pilot procedures and training recommendations.

This version, heavily revised from the edition published earlier this year, reflects comments and suggested changes from the Performance Based Operations Rulemaking Committee’s (PARC’s) GPS/GNSS Disruption Action Team, of which NBAA is a member, along with further FAA refinements.

“NBAA recognizes the problems with GPS interference and potential for interference around the world and is taking action to ensure users of the National Airspace System are informed,” Richard Boll, chair of NBAA’s Airspace and Flight Technologies Subcommittee. “This guide is not just a resource for pilots; it also provides information for operators and avionics manufacturers. Because this version is so significantly revised, stakeholders familiar with the previous version should review the new guide and implement recommendations appropriate to their operation.”

The guide also provides data on top impacted areas of spoofing, including the folllowing regions:

• Eastern Mediterranean Sea
• Black Sea
• Russia and Baltic Region
• India/Pakistan Border
• Iraq/Iran
• North and South Korea
• Areas around Beijing, China

Although these are the most impacted areas for jamming and spoofing, there have been instances of unintentional widespread GPS interference in the U.S. as well, so pilots of domestic operations should be aware of these risks as well, Boll said.

The guide explains that unintentional interference can be caused by faulty commercial equipment blocking the reception of a GNSS signal in a localized area, or inadvertent reradiated GNSS signals from avionic repair shops in and around airports. For example, in 2022, multiple aircraft reported unreliable GNSS near Denver International Airport (DEN), caused by an unauthorized transmitter broadcasting on the GNSS frequency, affecting civilian flights, air traffic control and other GNSS-dependent systems.

“It is critical that pilots and operators report any suspected GPS/GNSS interference, jamming and spoofing incidents to the FAA,” said Boll. “The FAA and other agencies take these reports seriously.”

Operators are encouraged to provide a detailed description of the event and consequences, including equipment affected, actions taken to mitigate the disruption and any post-flight pilot or maintenance actions.

Helping the business aviation sector contend with the insidious challenge of GPS jamming and spoofing has been a top priority for NBAA.

• Association President and CEO Ed Bolen weighed in on the matter in his President’s Perspective column in the latest edition of NBAA’s bimonthly magazine, Business Aviation Insider. 
• A feature story in the March/April 2025 edition of the magazine offers pilot and OEM tips on fighting GPS spoofing attacks. 
• NBAA News Hour, a regularly produced, interactive webinar series has also brought together experts to explore the issue and provide guidance for addressing GPS jamming and spoofing.