Aviation authorities are warning that instances of GPS interference have spread across a widening range of high-risk airspace, stretching from the eastern Mediterranean and Black Sea to the Russia-Baltic region, the India-Pakistan border, Iraq and Iran, and the Korean peninsula, forcing regulators to respond with new guidance and coordinated action.
In the US, the FAA has issued an updated GPS and Global Navigation Satellite System Interference Resource Guide, a document that has been heavily revised from a version released earlier in 2026. The new Version 1.1 focuses on jamming and spoofing trends, the effects on aircraft systems, recommended pilot procedures and training guidance.
The National Business Aviation Association (NBAA) said the revised guide incorporates feedback from the FAA’s Performance Based Operations Rulemaking Committee GPS/GNSS Disruption Action Team, which includes NBAA, along with additional FAA refinements.
Richard Boll, chair of NBAA’s Airspace and Flight Technologies Subcommittee, said the updated guide is intended not only for pilots but also for operators and avionics manufacturers, and urged stakeholders familiar with the earlier edition to review the changes and apply the recommendations to their operations.
“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,” Boll said.
The update also underscores that the threat is no longer confined to obvious geopolitical hot spots, he said. Boll warned that US and European operators should not assume they are insulated, noting that the US has seen cases of widespread GPS interference.
NBAA pointed to one such case near Denver in 2022, when an unauthorized transmitter disrupted GNSS reception and affected civilian flights, air traffic control and other systems that rely on satellite navigation. The association said the revised FAA guide stresses the importance of reporting suspected interference events, including what equipment was affected and what actions were taken in flight and after landing.
In Europe, EASA and Eurocontrol have now gone a step further by publishing a joint action plan aimed at building a more coordinated response to the same problem.
According to the plan, the agencies want to combine monitoring and operational data to create a shared picture of GNSS interference events across Europe. The goal is to improve detection, reporting and situational awareness while giving airlines, air navigation service providers and national authorities more consistent guidance on how to respond.
That European plan follows a June 2025 letter from 13 EU member states that raised concerns about a growing number of radio frequency interference events affecting GNSS-based systems. Eurocontrol has framed the issue as both a safety problem and an operational one, with the risk that interference could also affect airspace capacity if disruptions are not handled consistently.
Taken together, the US guide revision and the new European action plan show how quickly GNSS interference has moved from being treated as a regional nuisance or military-adjacent problem to a broader operational challenge for civil aviation. For operators, pilots and avionics providers, the message is becoming harder to ignore: satellite navigation disruptions are no longer rare events.