Proclamation delays Section 338 duties on certain Canadian imports
A proclamation postpones the effective date of previously announced Section 338 additional duties on certain imports from Canada. It also directs agencies to suspend collection as needed and process any refunds under applicable law and CBP procedures.
What this affects
CanadaThe update
This proclamation temporarily suspends the additional ad valorem duties previously imposed under Proclamations 11046, 11047, and 11048 on certain imports from Canada. It changes the effective date in those proclamations from August 19, 2026, to 12:01 a.m. eastern time on August 22, 2026.
The document states that senior executive branch officials reported ongoing negotiations with Canada and said Canada had expressed a commitment to remove the discriminatory or unequal measures at issue. Based on that status, the proclamation says the public interest requires suspending the additional duties for a period of 3 days.
The proclamation authorizes agencies to take steps to implement the change and to suspend collection of the additional duties to the extent required. It also directs CBP, in consultation with other agencies, to determine whether further HTSUS changes are needed and to make them through Federal Register notice. If implementation requires duty refunds, the proclamation says they are to be processed under applicable law and CBP's standard procedures.
Impact
For importers buying covered Canadian goods, this document changes timing rather than announcing a new rate. That can affect whether entries made during the 3 day suspension face the added duty, and it may also affect cash flow if duties were collected and later refunded under CBP procedures.
What to watch
The proclamation does not restate the duty rates or the full product lists from the earlier proclamations, so scope must be checked against those documents and any CBP or HTSUS implementation notices. Timing matters because the key change is the effective date, not the underlying authority.
How to prepare
- 1Review affected Canada entries
Identify shipments tied to the earlier proclamations and compare entry timing to the revised effective date.
- 2Confirm HTSUS implementation
Check for CBP or Federal Register notices that make any conforming tariff schedule changes.
- 3Model duty timing impacts
Estimate whether the 3 day delay changes landed cost or short term cash outlays.
- 4Track possible refunds
Match any duty paid against CBP records in case refunds are processed under standard procedures.
Sources
- Temporary Suspension of Additional Duties To Offset Canadian Discrimination Against the Commerce of the United States With Respect to Alcoholic Beverages, Dairy, and Motor Vehicles · Federal Register · August 24, 2026
- Section 338 tariffs on Canadian imports paused until Aug. 22 · Specialty Fabrics Review · August 19, 2026
We summarize published reporting and official notices. Always confirm rates and dates against the Federal Register or your customs broker before acting on them.