The Globe and Mail reports in its Saturday edition that Transport Canada has confirmed the safety and airworthiness of two of four American-made General Dynamics Gulfstream business jets. The Globe's Nicolas Van Praet writes federal department awarded "type certification" to Gulfstream's G500 and G600 models on Feb. 15. Two other new Gulfstream models, the G700 and G800, are not listed, meaning they have yet to be approved. Ottawa has been working to defuse U.S. anger over jet safety approvals after U.S. President Donald Trump blasted Canada in a social-media post in late January for having "wrongfully, illegally and steadfastly refused" to certify the four Gulfstream jet models. The President said the United States would decertify the Global Express jets made by Canada's Bombardier and "all aircraft made in Canada" until Canada approves the new business jets made by U.S.-based Gulfstream. He also threatened to impose a 50-per-cent import tariff on Canadian aircraft sold into the U.S. if the situation was not immediately addressed. The declaration sparked alarm and confusion among aviation-sector leaders in both Canada and the United States. Bombardier and Gulfstream are major competitors in the luxury jet market.