• The FAA is moving to require nearly all aircraft in civilian airspace to use ADS-B systems, including cockpit traffic displays, following January's deadly midair collision over Washington, D.C.
  • Administrator Bryan Bedford has tasked staff with drafting the measure as parallel safety legislation stalls in Congress, according to people familiar with the matter.
  • The mandate aims to close gaps in situational awareness and tracking data, but faces pushback over retrofit costs and implementation timelines.

New Push for ADS-B After D.C. Crash

The Federal Aviation Administration is preparing a sweeping mandate that would require nearly all aircraft operating in civilian airspace to be equipped with Automatic Dependent Surveillance–Broadcast (ADS-B) technology, according to people familiar with the matter. The move follows the January 2025 midair collision near Ronald Reagan Washington National Airport that killed 67 people.

FAA Administrator Bryan Bedford has directed agency staff to draft a rule that would expand beyond the current ADS-B Out requirements—which cover most commercial airliners—to also mandate ADS-B In, which provides pilots with real-time traffic displays and audible alerts. The draft rule is expected to target a broad swath of aircraft, including general aviation and some military operations, the people said.

“The agency is committed to ensuring that every aircraft in our skies has the technology to see and be seen,” a person briefed on the discussions said. The FAA declined to comment on the specifics of the draft, while the NTSB—which has long pushed for stronger ADS-B requirements—declined to comment on pending rulemaking.

Legislative Gridlock Boosts Agency Action

The regulatory push comes as Congress has struggled to advance the ROTOR Act, a bill that would mandate ADS-B In and close what advocates call the “military loophole” exemption for certain aircraft. Despite bipartisan support and high-profile hearings following the crash, the legislation has stalled amid competing priorities and industry lobbying. “We’ve seen enough hearings,” one Senate aide said, speaking on condition of anonymity because they weren’t authorized to speak publicly. “The FAA needs to act now.”

By pursuing rulemaking, the FAA is seeking to bypass the legislative logjam. The mandate could be phased in over several years, with exemptions for older aircraft or operators that demonstrate alternative collision-avoidance capabilities, according to industry observers.

Industry Weighs Safety Gains Against Costs

Airlines, general aviation groups, and pilots’ associations are grappling with the implications. For major carriers that already equip most fleets with ADS-B Out, the incremental cost of adding In capability is relatively low. But for the thousands of smaller private aircraft—many of which still rely on older transponders—the retrofit could cost between $10,000 and $30,000 per aircraft, according to avionics manufacturers. “Safety is paramount, but we need to be realistic about what operators can afford,” said a representative for a general aviation trade group, who asked not to be named because they were not authorized to discuss the pending rule.

Safety advocates argue the costs are justified. “The D.C. crash showed that a single missing aircraft on a controller’s screen can be deadly,” said a former NTSB official familiar with the investigation. Universal ADS-B In would give pilots an additional layer of warning, potentially preventing collisions even when controllers are overloaded.

Market and Global Ripple Effects

The U.S. push aligns with global trends toward enhanced surveillance. Avionics suppliers like Garmin and Honeywell (HON) could see a surge in demand for upgraded units, while airlines may begin accelerating fleet replacement plans. Internationally, the move could pressure other nations to strengthen their own ADS-B rules, particularly in crowded airspace around major hubs.

What Comes Next

The FAA is expected to publish a notice of proposed rulemaking within the coming months, followed by a public comment period. The final rule could take effect as early as 2027 for commercial operators, with phased deadlines for general aviation. “This is going to happen,” the person familiar with the drafting said. “The question is how fast and how broad.”

Update: This article was updated to clarify that the FAA declined to comment on the draft. An earlier version said the agency had no comment.