President Donald Trump threatened to decertify Canadian-made aircraft and impose a 50% tariff unless Canada approves Gulfstream jets. He accused Ottawa of illegally blocking certification while allowing its own planes to enter the U.S. market.
The dispute centers on aircraft certification, a regulatory process that determines whether aircraft can be sold and operated in a country. Trump has accused Canadian authorities of using the process to restrict American Gulfstream jets.
“Based on the fact that Canada has wrongfully, illegally and steadfastly refused to certify the Gulfstream 500, 600, 700 and 800 Jets, one of the largest, most technologically advanced aircraft ever made, we hereby decertify their Bombardier Global Expresses and all Canadian-made aircraft until Gulfstream, a major American company, is fully certified, as it should have been many years ago,” Trump said. Truth Social Thursday evening. “Additionally, Canada effectively prohibits the sale of Gulfstream products in Canada through this same certification process.”
He added: “If for any reason this situation is not corrected immediately, I will be charging Canada a 50% tariff on all aircraft sold into the United States of America. Thank you for your attention to this matter!”
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It was not immediately clear which aircraft outside Bombardier’s Global Express line would be affected by Trump’s proposed tariffs, including whether Canadian-built Airbus A220 commercial aircraft would be included.
FlightRadar24 said in a post on
Data provider Cirium said 150 Global Express aircraft are registered in the United States and operated by 115 different operators.
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Trump accused Canada of illegally blocking the certification of Gulfstream jets and said the US would withdraw Canadian-made planes in response. He also warned that he would impose a 50% tariff on all Canadian aircraft unless the issue is resolved immediately (Harun Ozalp/Anadolu via Getty Images/Getty Images)
In April, the Federal Aviation Administration and the European Union Aviation Safety Agency certified the Gulfstream G800 aircraft, while Transport Canada, which oversees aircraft certification in Canada, did not immediately respond to a request for comment.
It was not immediately clear how Trump would carry out a decertification, as that authority rests with the FAA, although he has made similar statements in the past that were later implemented — sometimes with exceptions — by relevant agencies.
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Canadian Prime Minister Mark Carney (L) and President Donald Trump pose for a photo during the G7 summit on June 16, 2025. (Brendan Smialowski/AFP via Getty Images/Getty Images)
Against the backdrop of broader tensions between the US and Canada, the Canadian Prime Minister said Mark Carney denied Tuesday that he had retracted comments that angered Trump and said “almost nothing” was normal in the United States.
Citing US trade policy, Carney last week urged other countries to prepare for the erosion of the rules-based world order long promoted by Washington.
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He has also pushed to diversify Canadian trade away from the United States, which accounts for about 70% of Canada’s exports under the U.S.-Mexico-Canada trade deal.
Reuters contributed to this report.
