New 50% Canada Tariffs Raise Cross-Border Trucking Uncertainty

New U.S. tariffs on selected Canadian goods are adding legal and pricing uncertainty for cross-border freight. TheTrucker.com reported August 29 that the administration invoked Section 338 of the Tariff Act of 1930 to impose a 50% duty on roughly $20 billion in annual imports. Canada announced matching retaliation on affected U.S. products.

The measure does not apply to every Canadian shipment. The White House's official fact sheet says the 50% rate covers specified products even when they otherwise qualify under the U.S.-Mexico-Canada Agreement. It identifies exclusions including energy, potash, goods already subject to Section 232 tariffs, fish and certain critical minerals. The affected trade was estimated at about 5% of Canadian imports to the United States.

Section 338 had not previously been used in this way or tested by a court, according to the source, so litigation could alter timing or scope. For trucking companies, the immediate risk is not only the duty itself. Changed purchase orders, canceled loads, customs holds and disputes over tariff classifications can reduce productivity even when the carrier is not responsible for paying the import charge.

Cross-border carriers should confirm the commodity description, origin, tariff code and responsible importer before pickup. Dispatch teams can build extra time into border appointments, document customer instructions and state clearly how detention, storage or rejected freight will be billed. Drivers should carry complete customs documents and avoid interpreting tariff eligibility at the booth. Shippers and brokers should obtain current advice from customs professionals because product coverage and retaliatory measures can change. The policy creates a planning challenge, not proof that all Canada-U.S. truck volumes will decline equally; specialized lanes, excluded commodities and contract terms will produce different results.