The Bombardier CS300 performs during the Paris Air Show at Le Bourget Airport in June 2015. Delta has ordered 75 of the smaller version, the CS100. Francois Mori/AP hide caption toggle caption Francois Mori/AP The Two-Way U.S. Slaps Hefty Tariff On Bombardier Jets, Angering Canada, U.K. September 27, 2017 Ruling on a complaint by Boeing, the Commerce Department has imposed a 220 percent tariff on the import of the Montreal-based company's top-end C-Series passenger jet.