Canada's retaliatory tariffs on U.S. imports came into effect at 00:01 AM ET on Tuesday (September 8), a move aimed at matching, dollar-for-dollar, the tariffs previously imposed by the U.S. on Canadian goods. The tariffs cover over 700 products, including steel, home appliances, agricultural equipment, and dairy products, with rates ranging from 15% to 50%. The Canadian government stated it would launch a C$5.42 billion support program to assist affected small and medium-sized enterprises and workers.