The Trump administration is modifying the 50% tariffs on imports in effect against $20 billion of Canadian goods. 

According to a release from the White House, the U.S. will ease levies against plywood sheets, some paper products, certain machinery and refrigeration equipment, and packing crates and boxes, starting on October 30. Those tariffs will be replaced with levies against imports from Canada of certain valves, carpets and waste products among other products. 

The White House did not specify exactly why the changes were made, stating only that the goal was to "continue effectively offsetting the burden to U.S. commerce while better serving the public interest." 

The move was first announced by Republican Senator Susan Collins, who is running for reelection in Maine in a tight midterm race. In a post to X, Collins said that she's had repeated conversations with senior Trump officials regarding tariff relief, and vowed to continue working directly with the administration to encourage a broader trade agreement with Canada.

"Many of our farmers and growers rely on specialized equipment, packaging materials, and other products from Canada that are either unavailable from American suppliers or cannot be replaced without incurring significant expense," Collins said.