Section 338 Canada tariffs: dates, scope, and changes
The three July 20 proclamations established additional 50% duties on listed Canadian products. A later proclamation suspended the intended August 19 start for three days, so the duties took effect August 22. Proclamations issued September 8 change product scope on September 15 and move certain products from the three duty regimes to import bans on September 29. Product-level conclusions therefore require the original annexes, the September amendments, and any implementing CBP guidance—not the proclamation titles alone.
- Jurisdictions
- United States federal import treatment of products of Canada.
- Documents
- Proclamations 11046, 11047, and 11048 (July 20, 2026) and later actions