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

Summary: This proclamation, signed September 8, 2026, is the companion "scope modification" order for motor vehicles — referenced in the earlier import-ban proclamation on the same topic. Background: Proclamation 11048 (July 2026) imposed 50% ad valorem duties on Canadian motor vehicles and parts after finding Canada's tariff scheme discriminated against U.S. auto commerce. Proclamation 11056 (August 2026) briefly suspended these duties for 3 days after Canada pledged to fix the discrimination. Canada reneged on August 21, 2026, so the duties took effect August 22, 2026. New action: Rather than escalating to a ban (which was done for a separate subset of products in a companion proclamation), this order adjusts which products are covered by the existing 50% tariff: These changes take effect September 15, 2026, and apply in addition to existing Section 232 national-security tariffs. The Harmonized Tariff Schedule is updated accordingly (Annex II). Implementation: CBP, in consultation with Treasury, Commerce, and the USTR, will administer the changes and can make further technical HTSUS corrections as needed. Standard severability clause included. Context: Together with the alcohol, dairy, and motor vehicle import-ban proclamations issued the same day, this shows the administration pursuing a dual-track approach with Canada — banning imports on some products while merely adjusting tariff scope on others within the same categories.