US changes Canadian products covered by the additional 50% Section 338 duty
The October 23, 2026 proclamation removes listed plywood, paper and machinery products from Canada's additional 50% Section 338 duty and adds listed valves, carpets and other goods from October 30, 2026. The duty applies to covered goods regardless of USMCA origin status and in addition to applicable Section 232 tariffs.
- Announced
- Effective
Import / export scope: United States / Canada · HS 12 · 18 · 32 · 33 · 34 · 38 · 39 · 40 · 44 · 48 · 57 · 84 · 89 · 90 · 95
- Official source: White House — October 23 proclamation modifying Canadian Section 338 product coverage ↗
- Official source: White House — Annex II, HTSUS subheadings removed from and added to Section 338 coverage ↗
- Official source: White House — Fact sheet on Canadian Section 338 product changes and USMCA treatment ↗