TARIFF TRACKER
Suspends Section 338 duties on certain Canadian imports for three days
This proclamation delays the start of Section 338 additional duties on certain Canadian imports under three July proclamations from August 19 to August 22, 2026. CBP and agencies must suspend collection as needed and process refunds under standard procedures.
Updated October 12, 2026
STATUS
Ended
·
EFFECTIVE
·
Section 338
COUNTRIES
Canada
COVERED GOODS
Certain imports of Canada covered by Proclamations 11046, 11047, and 11048. This text does not list the HTS headings.
WHAT TO DO (OUR GUIDANCE, NOT LEGAL ADVICE)
Check entries of Canadian goods covered by Proclamations 11046, 11047, and 11048 for the August 19 to August 22 window. If duties were collected during the suspended period, follow CBP refund procedures.
SOURCES
Proclamation 11056, 91 FR 54789 (August 24, 2026)
CSMS # 69851916 - Modifying Section 338 Additional Duties on Certain Goods of Canada (September 11, 2026)
QUOTES FROM THE SOURCE
Signed: "Proclamation 11056 of August 18, 2026" (source)
Effective date: "The effective date of the additional ad valorem duties imposed in Proclamations 11046, 11047, and 11048 shall be 12:01 a.m. eastern time on August 22, 2026." (source)
End date: "suspending for a period of 3 days the additional ad valorem duties imposed in Proclamation 11046, 11047, and 11048." (source)
Covered goods: "additional ad valorem duties, effective August 19, 2026, on certain imports of Canada." (source)
Countries: "additional ad valorem duties, effective August 19, 2026, on certain imports of Canada." (source)
Status: "suspend the collection of the additional ad valorem duties imposed in Proclamations 11046, 11047, and 11048 to the extent required to effectuate this proclamation." (source)
Awaiting check
Quotes matched to source text by machine; awaiting human check.
Morsa reads your suppliers’ price-increase letters and POs in your inbox and flags the ones a tariff change touches. See how it works

