On Friday, U.S. President Donald Trump signed a proclamation adjusting the scope of the 50-percent additional tariffs imposed on certain Canadian products. The changes, which will take effect on October 30, involve removing some goods from the tariff list while adding others.

According to the proclamation published on the White House website, products such as plywood sheets, some paper goods, certain machinery and refrigeration equipment, as well as specific packing crates and boxes imported from Canada, will no longer be subject to the additional 50-percent ad valorem duty. In contrast, the revised list now includes certain valves, carpets, waste products, and other items that will face the tariff starting on the effective date.

The new tariff adjustments will apply to goods entered for consumption or withdrawn from warehouses on or after October 30. The proclamation justifies the modifications by stating they are intended to offset disadvantages faced by U.S. commerce and align with the public interest and the interests of the United States.

These duties were introduced as a response to what the U.S. government describes as Canada’s “discrimination or unreasonable and unequal imposition” on American exports of automobiles and auto parts. The changes aim to better serve U.S. economic interests by shifting the tariff burden to different categories of Canadian imports.