SourceLegislature

U.S. Tariffs on Canadian Imports: Section 338 of the Tariff Act of 1930

Published by

Congressional Research Service

Date

14 September 2026

Access

Primary source

Link

www.everycrsreport.com/reports/R49349.html

Checked

29 September 2026

Events it documents

• 8 September 2026Canadian counter-tariffs take effect on C$27.6B of US goods (about US$20B), matching the US Section 338 tariffsActionTariff actionCanada3 sources
• 8 September 2026Trump signs five Section 338 proclamations: bans on some Canadian alcohol, dairy and motorcycles from 29 Sep and a revised tariff list from 15 SepActionTariff actionUnited States4 sources
• 22 August 2026The 50% Section 338 tariffs take in Canadian plywood, MDF, particle board, mouldings, doors and pulpwood; softwood lumber is sparedActionTariff actionUnited States3 sources
• 18 August 2026Trump announces a tentative deal with Canada, 'subject to the finalization of documents', and suspends the Section 338 tariffs until the end of 21 AugustActionTariff actionUnited States3 sources