The White House announced that President Donald Trump signed a proclamation further modifying the scope of tariffs on certain Canadian products, initially announced on July 20, 2026, and modified on September 8, 2026, under Section 338 of the Tariff Act of 1930. This action aims to continue addressing Canada's discriminatory treatment of U.S. commerce. Specific modifications include removing plywood, certain paper products, certain machinery and refrigeration equipment, and certain packing cases from the tariff scope, and replacing them with certain valves, carpets, and waste products. These product additions and removals will take effect on October 30, 2026.