President bans import of select Canadian goods amid motor vehicle tariff dispute

Proclamation 11063, published in the Federal Register (Vol. 91, No. 176, FR Doc No: 2026-18837) on Sep. 14, 2026, directs that certain Canadian products identified in the proclamation's annex be excluded from importation into the United States, effective 12:01 a.m. Eastern time on Sep. 29, 2026. The ban applies to all goods imported on or after that date; products already imported but not yet entered for consumption before Sep. 29 remain subject to the 50 percent ad valorem duty established by Proclamation 11048.

The ban follows Proclamation 11048 of July 20, 2026, which imposed additional ad valorem duties on the same Canadian items, effective Aug. 19, 2026, under section 338 of the Tariff Act of 1930. A temporary three-day suspension of those duties was issued in Proclamation 11056 on Aug. 18, 2026, but the suspension lapsed on Aug. 22, 2026 after Canada reneged on its commitment to remove the disputed motor-vehicle tariff scheme.

Under the new proclamation, the head of each executive department and agency must take appropriate measures to implement the import ban. The Commissioner of U.S. Customs and Border Protection, in consultation with the Secretaries of Treasury and Commerce and the United States Trade Representative, is authorized to issue the necessary rules, regulations, guidance, and any modifications to the Harmonized Tariff Schedule of the United States required to enforce the ban.

The President invoked authority granted by section 338 of the Tariff Act of 1930 and section 604 of the Trade Act of 1974, stating that the exclusion is consistent with the public and national interests given Canada's continued discriminatory motor-vehicle tariff practices.