September 10, 2026 admin

Modifications to Section 338 Tariffs and New U.S. Import Bans on Canadian Goods


 

Thursday, September 10, 2026

Over 100 years providing customs and logistics solutions for importers and exporters in North America.

Modifications to Section 338 Tariffs and New U.S. Import Bans on Canadian Goods

On September 8, 2026, President Trump issued a series of proclamations that both modify the existing Section 338 tariff measures and impose new import prohibitions on certain Canadian-origin products, including alcoholic beverages, dairy products, molasses, non-alcoholic beer, and certain motorcycles. 

The modifications to the Section 338 tariffs will take effect on September 15, 2026. According to the accompanying White House fact sheet, these tariffs will apply regardless of whether goods qualify for preferential treatment under the United States-Mexico-Canada Agreement (USMCA) and will be assessed in addition to any applicable Section 232 duties, resulting in increased duty exposure for affected imports. 

The new import bans will become effective on September 29, 2026, at which time the affected Canadian-origin products will be prohibited from importation into the United States. 

Importers should carefully review their US imports, and product classifications to evaluate the impact of these new measures and prepare for the upcoming implementation dates. 



Willson International will continue to monitor developments and provide updates as additional guidance becomes available. 

Fact sheet: https://www.whitehouse.gov/fact-sheets/2026/09/fact-sheet-president-donald-j-trump-responds-to-canadas-retaliation/ 

Proclamations and Annexes:

https://www.whitehouse.gov/presidential-actions/2026/09/modifying-the-scope-of-products-of-canada-subject-to-the-additional-duties-imposed-to-offset-canadian-discrimination-against-the-united-states-with-respect-to-motor-vehicles

https://www.whitehouse.gov/presidential-actions/2026/09/excluding-certain-canadian-alcoholic-beverages-from-importation-into-the-united-states-in-response-to-continued-discrimination-against-the-commerce-of-the-united-states-with-respect-to-alcoholic-bever

https://www.whitehouse.gov/presidential-actions/2026/09/excluding-certain-canadian-products-from-importation-into-the-united-states-in-response-to-continued-discrimination-against-the-commerce-of-the-united-states-with-respect-to-dairy

https://www.whitehouse.gov/presidential-actions/2026/09/modifying-the-scope-of-products-of-canada-subject-to-the-additional-duties-imposed-to-offset-canadian-discrimination-against-the-commerce-of-the-united-states-with-respect-to-alcoholic-beverages

https://www.whitehouse.gov/presidential-actions/2026/09/excluding-certain-canadian-products-from-importation-into-the-united-states-in-response-to-continued-discrimination-against-the-commerce-of-the-united-states-with-respect-to-motor-vehicles

Click here to read more of today’s updates via the Willson eNews

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Disclaimer: The information provided here is for informational purposes only and is offered without liability on the part of Willson International. It is based on the best available information; however, the tariff environment is rapidly changing, and some details may become outdated. Any advice and/or information contained in this communication is not binding on U.S. Customs and Border Protection (CBP) or the Canada Border Services Agency (CBSA), nor does it satisfy the requirements for “reasonable care” in conducting your customs business. For the most up-to-date and accurate information, please contact your customs broker or trade advisor.

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