US President Donald Trump has issued a sharp warning to Canada, threatening a 50% tariff on all Canadian-made aircraft unless Ottawa reverses its decisions regarding aircraft certification. The announcement, made via the social media platform Truth Social, comes amid a dispute over several Gulfstream jet models that the United States claims have been unfairly blocked by Canadian regulators.
Trump specifically cited the Gulfstream G500, G600, G700, and G800 models, describing them as “some of the most advanced airplanes ever made.” According to the US President, Canada’s refusal to certify these aircraft constitutes an illegal and unjust action against American manufacturers. He further indicated that if the certification issue is not resolved immediately, the United States will retaliate by “decertifying” Canadian-made Bombardier jets.
The aviation dispute marks the latest tension in US-Canada trade relations, which have included disagreements over steel, aluminum, and other industrial goods. Aviation experts note that aircraft certification is a highly regulated process involving safety, technical, and operational assessments. Differences in regulatory procedures between countries can sometimes lead to delays or disagreements, but a threat of a 50% tariff represents an unusually strong response.
Trump’s announcement has already sparked concern among industry stakeholders, who fear that such tariffs could disrupt the supply chain, increase aircraft costs, and complicate international trade relations. Bombardier, one of Canada’s largest aerospace manufacturers, produces commercial and business jets that serve global markets, including the United States. Any decertification of these planes could significantly affect the company’s exports and broader aviation trade between the two countries.
Analysts say the threat also underscores the US administration’s willingness to use trade policy as leverage in industrial disputes. While tariffs are traditionally employed to protect domestic industries or retaliate against unfair trade practices, aviation disputes often require diplomatic negotiations and technical resolution to avoid long-term disruptions.
Canada has not yet issued an official response to Trump’s statement. The government is expected to engage with US regulators and industry representatives to address the certification issues and prevent escalation. Observers note that resolving the matter quickly would be in the interest of both countries’ aviation sectors, which are closely integrated in production, supply chains, and maintenance networks.
As the situation develops, aviation companies, trade associations, and policymakers will be closely monitoring negotiations to determine whether the tariff threat is carried out or resolved through diplomatic channels. This episode highlights the sensitive balance of trade, regulation, and diplomacy in the aerospace sector, particularly between close allies such as the United States and Canada.
