Scope: Federal
Branch: Executive
Severity: Amber
Date occurred: September 8, 2026
A presidential proclamation signed September 8, 2026 modifies which products of Canada are subject to additional duties previously imposed to offset asserted Canadian discrimination against U.S. commerce in motor vehicles. The proclamation was published in the Federal Register on September 14, 2026.
Constitutional basis: Presidential adjustment of tariff scope under delegated trade authority resting on a discrimination-offset rationale outside the settled Section 232 and 301 pattern.