Supreme Court Ruling Upends White House Tariffs | Aviation International News

Regulations and Government

Supreme Court Ruling Clouds White House Tariffs

Aerospace industry has grappled with tariffs and their unpredictability

Pilatus PC-24 (Photo: Jet Aviation) — The French Navy plans to take delivery of three Pilatus PC-24 aircraft under lease from Jet Aviation in 2026.

By Kerry Lynch • Editor, AIN monthly magazine

February 20, 2026

The U.S. Supreme Court today struck down many of the tariffs that the White House has imposed over the past year under the International Emergency Economic Powers Act (IEEPA). The landmark ruling—by a 6-3 decision—had been anxiously awaited throughout multiple industries, including aviation. While many aircraft and associated products have been exempted over time, the aviation sector has grappled with the ramifications of tariffs on other components and materials and the unpredictability of their imposition over the past year.

In an opinion written by Chief Justice John Roberts, the Supreme Court determined that “the president has no inherent peacetime authority to impose tariffs. Nor are we persuaded that the dots connect from our wartime precedents…We hold that IEEPA does not authorize the president to impose tariffs.”

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