On September 8, 2026, US President Donald Trump issued a number of Proclamations that took effect as early as September 15, 2026, on certain Canadian-origin goods.
Importers must closely review the following, as these changes may significantly affect tariffs or the ability to import certain Canadian-origin products into the United States.
Changes to certain Section 338 Tariffs
- 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
Effective 12:01 a.m. ET on September 15, 2026, this list of additional Canadian origin goods subject to 50% tariff became effective. The revised list of tariffs may be found in ANNEX I, a complete list of additions, e.g. certain paper products, tooling, electronic goods, and furniture, and certain steel and aluminum, along with deletions, e.g. salt, Portland cement, Tissue Paper, Fishing Rods, etc., may be found in ANNEX II.
The original Proclamation 11046 imposing the 50 percent Section 338 tariff on certain Canadian origin goods exempted goods subject to Section 232 tariffs – these adjustments now remove that exemption and both tariffs, under Section 338 and Section 232, may apply to the same goods, equating to a possible 100 percent tariff in certain circumstances:
The duties imposed pursuant to Proclamation 11048, as modified in this proclamation, shall apply in addition to duties imposed pursuant to section 232 of the Trade Expansion Act of 1962, as amended (19 U.S.C. 1862). Â These changes shall be effective with respect to goods entered for consumption, or withdrawn from warehouse for consumption, on or after 12:01 a.m. ET on September 15, 2026.
Examples of Section 232 additions to the list, which may now be subject to a 100% stacked tariff, include:
| 7308.90.30 | Iron or steel columns, pillars, posts, beams and girders, not in part of alloy steel |
| 7308.90.60 | Iron or steel columns, pillars, posts, beams and girders, nesoi |
| 7308.90.95 | Iron or steel structures (excluding prefabricated structures) and parts of structures, nesoi |
| 7604.10.10 | Aluminum non-alloyed profiles |
| 7604.10.30 | Aluminum non-alloyed bars and rods, with a round cross section |
| 7604.10.50 | Aluminum non-alloyed bars and rods, without a round cross section |
| 7604.21.00 | Aluminum alloy hollow profiles |
| 7604.29.10 | Aluminum alloy profiles (other than hollow profiles) |
| 7604.29.30 | Aluminum alloy bars and rods, with a round cross section |
| 7604.29.50 | Aluminum alloy bars and rods, without a round cross section |
| 7608.10.00 | Aluminum non-alloyed tubes and pipes |
| 7608.20.00 | Aluminum alloy tubes and pipes |
- 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
Effective 12:01 a.m. ET on September 15, 2026, certain Canadian origin products became subject to a 50% tariff (e.g., cheese, Hides/Leather, Motorboats). A full list may be found in ANNEX-1.
The original Proclamation 11046 imposing a 50 percent Section 338 tariff on certain Canadian origin goods exempted goods subject to Section 232 tariffs – these adjustments now remove that exemption and both tariffs, under Section 338 and Section 232, may apply to the same goods, equating to a possible 100 percent tariff in certain circumstances:
The duties imposed pursuant to Proclamation 11046, as modified in this proclamation, shall apply in addition to duties imposed pursuant to section 232 of the Trade Expansion Act of 1962, as amended (19 U.S.C. 1862). These changes shall be effective with respect to goods entered for consumption, or withdrawn from warehouse for consumption, on or after 12:01 a.m. ET on September 15, 2026.
Canadian origin goods banned from import
- 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 Beverages
Effective 12:01 a.m. ET on September 29, 2026, certain Canadian-origin alcoholic beverages are excluded from importation into the United States (i.e., banned). A full list may be found in the ANNEX.
- 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
Effective 12:01 a.m. ET on September 29, 2026, certain Canadian-origin products (e.g., Whey Protein concentrates, Whey, Modified Whey, Molasses, and Non-alcoholic beer) are excluded from importation into the United States (i.e., banned). A full list may be found in the ANNEX.
- 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
Effective 12:01 a.m. ET on September 29, 2026, certain Canadian-origin motorcycles are excluded from importation into the United States (i.e. banned) as identified in the ANNEX.
Importers should take note – CUSMA/USMCA does not shield covered goods.
The White House Fact Sheet confirms that Section 338 duties apply to all covered goods made in Canada, regardless of whether the goods originate under CUSMA/USMCA. This breaks the pattern that importers have relied on for the past 18 months, in which a valid origin certification generally provided relief under IEEPA and Section 122 measures. A CUSMA/USMCA certificate of origin will not exempt a listed product here.
If you are unsure whether your products fall under any of the three Annexes, our US Customs Consulting Services regulatory team can help you determine their classifications. Reach out to Brian Rowe, Director – Customs Compliance & Regulatory Affairs, or your Universal Logistics representative.
