Supreme Court IEEPA Ruling And New U.S. Tariffs: Implications For Civil Aviation

Highlights

• Following the U.S. Supreme Court's February 20, 2026, decision to uphold the U.S. Court of Appeals for the Federal Circuit's ruling that the International Emergency Economic Powers Act (IEEPA) does not authorize the president to impose tariffs, President Donald Trump promptly employed other statutory authorities to impose 10 percent tariffs on all countries effective February 24, 2026.
• Issued under Section 122 of the Trade Act of 1974, the new tariffs exempt civil aircraft, engines and parts that were eligible for duty-free treatment under the 1979 Agreement on Trade in Civil Aircraft.
• This Holland & Knight alert provides a snapshot analysis of the impacts of these actions on civil aviation.