White House Says Threat Does Not Apply To Current Canadian Planes The White House has walked back President Donald Trump’s threat to decertify Canadian aircraft saying the president’s directive would not apply to in-service aircraft, according to reports. A White House official said decertification would not immediately affect aircraft already in operation, but would apply only to new deliveries. President Donald Trump said on Thursday night, in a Truth Social post, that he would “decertify” Canada-made Bombardier jets until Canada approved the American-made Gulfstream models. He also threatened a 50% tariff on “any and all” Canadian aircraft sold in the U.S. until the situation was corrected.