Donald Trump’s latest move in the Canada trade fight does not end the 50% tariffs that have rattled cross-border business since August. Instead, it reshapes them. A proclamation signed October 23 removes some Canadian products from the Section 338 tariff list while placing other goods under the same 50% duty, with the revised treatment taking effect at 12:01 a.m. Eastern time on October 30. The change is tied to Washington’s dispute with Ottawa over motor-vehicle trade, even though many of the products affected have little to do with cars. For Canadian exporters, U.S. importers and businesses built around tightly integrated supply chains, the practical message is mixed: some companies are getting meaningful relief, others are becoming new targets, and the broader Canada-U.S. tariff standoff remains unresolved.
The 50% Rate Is Staying, but the Product List Is Changing
The October 23 proclamation is a rebalancing of an existing tariff program, not a broad rollback. Trump modified Proclamation 11048, the Section 338 action issued in July over what the White House calls discriminatory Canadian treatment of U.S. motor vehicles. Under the new order, some Canadian products will no longer face the additional 50% duty, while a different set will enter its scope. The switch applies to goods entered for consumption, or withdrawn from warehouse for consumption, beginning at 12:01 a.m. Eastern time on October 30.
The 50% rate itself is not being reduced. Washington is changing the product map around it. The White House also says the revised Section 338 duties can apply in addition to tariffs imposed under Section 232. For companies, that makes the exact tariff classification and any overlapping sectoral duties crucial. National-level relief can therefore look very different from the perspective of an individual importer, manufacturer or exporter.
Some Canadian Goods Get Relief While Others Become New Targets
The relief side is concentrated in products with clear U.S. business users. The White House and Sen. Susan Collins’ office identified exemptions covering corrugated cartons, plastic boxes and crates, packing bags, refrigeration equipment, agricultural sorting machinery, filling and labeling machinery, packing equipment, some plastic sheets and film, and edible seaweed and algae. Reuters also reported that plywood sheets and some paper products are coming off the 50% list. These are ordinary goods, but many sit deep inside farm, food-processing and packaging operations.
Washington is simultaneously adding new Canadian targets. Reuters reported that the incoming 50% list includes carpets, paints, waste products, shampoos, cocoa powder, wooden coffins, ice-cream sticks, air-conditioning machines, chest freezers, archery equipment and canoes. The mix shows how Section 338 reaches far beyond autos. A canoe maker or shampoo exporter can be pulled into a confrontation that began with vehicle policy, despite having no role in the original dispute.
Canada’s Auto Counter-Tariffs Sit at the Centre of the Fight
The auto dispute dates back to Canada’s response to U.S. vehicle tariffs in 2025. Since April 9, Canada has imposed a 25% tariff on non-CUSMA-compliant vehicles imported from the United States and on the non-Canadian and non-Mexican content of CUSMA-compliant U.S. vehicles. Ottawa calls those measures countermeasures adopted after the United States imposed tariffs on Canada’s auto industry. The Trump administration argues instead that the Canadian system singles out U.S.-origin vehicles and discriminates against American commerce.
In its July proclamation, the White House said U.S. motor-vehicle exports to Canada fell about 22% when April 2025 through March 2026 was compared with the same period a year earlier. It also cited stronger Canadian vehicle imports from other countries. Those claims underpin Washington’s use of Section 338 of the Tariff Act of 1930, which allows additional duties of up to 50% after a finding of discriminatory treatment. The retaliatory products, however, do not have to be cars.
Months of Escalation Led to the October 30 Reset
The October 30 changes are the latest turn in a fast-moving dispute. Trump announced the Section 338 tariffs on July 20 over disagreements involving motor vehicles, dairy and alcohol. The initial effective date was August 19, but he paused the duties for three days on August 18 while talks continued. The pause expired on August 22 after the governments failed to reach an agreement, and the 50% tariffs took effect. The Congressional Research Service says this was the first time a president had expressly cited Section 338 to impose tariffs.
Canada responded on September 8 with counter-tariffs of 15%, 25% and 50% on C$27.6 billion worth of U.S. imports, describing the move as matching the U.S. action dollar for dollar. The list covered sectors including steel, dairy, appliances, agricultural equipment, pulp and paper, and electronics. Washington then revised its lists and imposed import bans on certain Canadian goods effective September 29. October’s move is another recalibration, not a settlement.
Canada’s Auto Industry Has Little Room to Ignore the U.S. Market
The stakes are high for Canada because its auto industry remains deeply tied to the U.S. market. The federal government says more than 90% of Canadian-made vehicles and about 60% of Canadian-made auto parts are exported to the United States. It also says the sector supports more than 500,000 workers, contributes over C$16 billion annually to GDP and produced more than 1.2 million passenger vehicles in 2025. Tariff changes can therefore move quickly from customs paperwork to factory scheduling, supplier orders and employment decisions.
Statistics Canada puts an even sharper number on that dependence. In 2024, U.S. demand accounted for 76.4% of value added and payroll jobs in Canadian automobile and light-duty vehicle manufacturing, representing roughly 27,000 jobs in that category. The agency also reported that more than 93% of Canadian motor-vehicle exports went to the United States in 2025, even as those exports fell 9.6% from 2024. For such an integrated industry, uncertainty can be costly before a tariff reaches its final form.
CUSMA Compliance Does Not Shield Goods From Section 338
CUSMA does not automatically protect a covered Canadian product from these Section 338 tariffs. The White House says the duties apply to covered goods regardless of whether they qualify as originating under the U.S.-Mexico-Canada Agreement. The October order also says the modified duties can be layered on top of Section 232 tariffs where applicable. Meeting continental rules of origin still matters, but it does not guarantee escape from every tariff instrument Washington is using.
The trade agreement itself is in an unsettled political phase. At the July 1, 2026 joint review, the U.S. Trade Representative said Washington did not agree to renew USMCA in its current form. USTR also said the agreement remains in force while the parties work through differences or until it is terminated. Section 338 adds another layer because it is an old, rarely used authority. The Congressional Research Service says Trump’s 2026 action was the first time a president expressly cited it to impose tariffs, while legal experts have disagreed over its durability if challenged.
Maine Businesses Helped Drive the Latest Tariff Exemptions
The latest exemptions show how U.S. politics can reshape trade policy at the product level. Republican Sen. Susan Collins of Maine, facing Democrat Troy Jackson in a closely watched November 3 reelection contest, said she repeatedly pressed U.S. Trade Representative Jamieson Greer and Commerce Secretary Howard Lutnick for relief. Her office said nine exempted product categories are important to Maine’s blueberry, potato, apple and seaweed industries. One example is specialized harvesting boxes imported from Canada that work with existing blueberry-processing equipment and are difficult to replace affordably.
That friction explains why tariffs can become politically costly even when designed to protect domestic industry. U.S. importers, not foreign governments, pay tariffs at the border, then decide whether to absorb the cost or pass it along. Collins said some Canadian packaging and equipment are unavailable from U.S. suppliers or more expensive to replace. The October exemptions therefore show tariff policy colliding with local business realities—and how specific economic pain can influence which products remain on a tariff list.
October 30 Is a Deadline, Not the End of the Trade Fight
For Canadian businesses, October 30 is the immediate operational deadline, but not the end of the dispute. Ottawa’s minister responsible for U.S. trade, Dominic LeBlanc, said Canada was assessing the latest changes and remained prepared to work toward a mutually beneficial relationship. Canada’s counter-tariff structure remains in place, while Section 338 gives the president authority to suspend, revoke, supplement or amend proclamations when the administration decides the public interest requires another change.
A separate auto risk remains unresolved. In August, Trump threatened to raise U.S. tariffs on Canadian cars, trucks and automotive parts to 50% starting January 1, 2027 after negotiations collapsed; U.S. Trade Representative Jamieson Greer was still referring to that threat in late September. The October 23 proclamation does not itself implement that broader auto increase. Businesses therefore must distinguish between measures already in force, product-list changes effective October 30 and tariff threats that could still change through negotiation. The broader signal is continued volatility, not a return to stable North American trade.
