NAFTA Panel Upholds U.S. Canadian Softwood Lumber Subsidy Finding
A NAFTA Chapter 19 panel has affirmed the U.S. Commerce Department’s second remand determination in the original Canadian softwood lumber countervailing-duty case, effectively concluding a legal challenge launched nearly nine years ago. The decision, however, does not alter the duty deposits currently being collected at the U.S. border.
By Paul Ploumis
Published October 12, 2026
Key Points
- Panel decision: The NAFTA Chapter 19 panel affirmed Commerce’s second remand determination on October 5.
- Case: The proceeding challenged the original 2017 U.S. countervailing-duty determination on Canadian softwood lumber.
- Current duty rate: Most companies covered by the sixth administrative review remain subject to a combined AD/CVD cash-deposit rate of 35.16%.
- Possible AR7 rate: Commerce’s latest post-preliminary calculation is 25.18% for non-selected respondents, but that rate is not yet in effect.
- Additional tariff: Covered softwood lumber is also subject to a separate 10% Section 232 tariff.
- Timeline: The challenge was requested in November 2017; the October 2026 decision arrived nearly nine years later.
SEATTLE (Scrap Monster): A NAFTA Chapter 19 binational panel has upheld the U.S. Department of Commerce’s second remand determination in the long-running countervailing-duty case involving Canadian softwood lumber.
The panel issued its decision on October 5, 2026, affirming Commerce’s revised determination in full and effectively concluding this particular challenge to the original 2017 subsidy finding.
Canada, provincial governments and Canadian lumber producers had contested several aspects of Commerce’s methodology, including its treatment of provincial Crown stumpage systems, under which companies pay for the right to harvest timber from publicly owned forests.
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The most important commercial point is what the October 5 ruling does not do. It does not immediately raise or lower the cash-deposit rate Canadian lumber exporters are currently paying.
Most companies covered by the sixth administrative review remain at a 35.16% combined antidumping and countervailing-duty rate. That consists of a 20.53% antidumping rate and a 14.63% countervailing-duty rate for the “all others” category.
There is already a potentially significant reduction waiting in the seventh review. Commerce’s June post-preliminary calculations put the combined “all others” rate at 25.18%, nearly 10 percentage points below the current level. Those figures do not take effect unless and until Commerce publishes final AR7 results.
The practical border burden can be higher still. Since October 14, 2025, certain Canadian softwood lumber products have also been subject to a separate 10% Section 232 tariff. For a covered exporter paying the 35.16% AD/CVD rate, that can put the combined headline burden at roughly 45.16%, depending on product classification and company-specific treatment.
If AR7 were finalized at the current 25.18% post-preliminary “all others” rate, that same arithmetic would fall to roughly 35.18% including the 10% Section 232 tariff. That makes the pending administrative-review decision more immediately important to mill economics than the panel ruling itself.
The legal timeline is also striking. Canada requested panel review on November 14, 2017. The October 5, 2026 decision came 3,247 days later. NAFTA’s panel rules were designed to produce decisions within 315 days. The proceeding therefore ran more than ten times the intended timetable before reaching this stage.
Panel Affirms Commerce’s Second Remand Determination
The case is formally known as Certain Softwood Lumber Products from Canada: Final Affirmative Countervailing Duty Determination, Secretariat File No. USA-CDA-2017-1904-02.
The original panel decision in May 2024 did not simply uphold Commerce’s determination. Instead, the panel sent several issues back to the department for further explanation and reconsideration.
Commerce subsequently issued a remand determination. In March 2026, the panel affirmed portions of that response but remanded other issues for additional consideration.
Commerce then filed a second remand determination.
On October 5, the panel affirmed that second response, with Global Affairs Canada stating that the decision effectively concludes this particular challenge.
Crown Stumpage Was Central to the Subsidy Dispute
A major issue in the U.S.-Canada lumber dispute is the way timber is harvested from public land in Canada.
In provinces including British Columbia and Alberta, much of the timber supply comes from Crown land. Provincial governments establish stumpage charges paid by forest companies for harvesting rights.
The U.S. lumber industry has long argued that Canadian stumpage systems can provide lumber producers with timber at below-market rates and therefore constitute a countervailable subsidy.
Canada and its lumber industry have repeatedly disputed U.S. methodologies used to reach those conclusions.
The October panel decision does not settle the broader political and trade-policy disagreement between the two countries. It affirms Commerce’s second remand determination under the legal framework governing this specific 2017 countervailing-duty proceeding.
Current Combined AD/CVD Rate Remains 35.16%
For most Canadian companies covered by the sixth administrative review, the current “all others” combined antidumping and countervailing-duty cash-deposit rate is 35.16%.
| AR6 Category | AD Rate | CVD Rate | Combined |
|---|---|---|---|
| Canfor | 35.47% | 12.12% | 47.59% |
| West Fraser | 9.65% | 16.82% | 26.47% |
| All Others | 20.53% | 14.63% | 35.16% |
Those rates remain in force for companies covered by the sixth review until they are replaced by final results from a later administrative review.
Seventh Review Could Lower Duties
The seventh administrative review is now the more immediate issue for exporters.
Commerce’s June 30 post-preliminary results calculated a combined rate of 25.18% for non-selected respondents.
| AR7 Category | AD Rate | Post-Prelim CVD | Combined |
|---|---|---|---|
| Canfor | 16.85% | 14.52% | 31.37% |
| Resolute | 13.25% | 12.24% | 25.49% |
| West Fraser | 4.77% | 16.15% | 20.92% |
| Non-Selected / All Others | 10.66% | 14.52% | 25.18% |
These rates are not currently in effect. Only Commerce’s final AR7 results can replace the existing cash-deposit rates.
Global Affairs Canada says final results are expected in fall 2026, with October identified as the likely timing if the review is fully extended.
Section 232 Adds Another 10% Tariff
The antidumping and countervailing duties are no longer the only U.S. trade measure affecting Canadian softwood lumber.
Effective October 14, 2025, the United States imposed a separate 10% Section 232 tariff on specified softwood timber and lumber products.
That tariff is additional to applicable antidumping and countervailing duties.
The exact total burden varies by producer, product classification and administrative-review history, so company-specific rates can differ substantially.
Challenge Took Nearly Nine Years
Canada requested the NAFTA panel review in November 2017.
The Article 1904 rules state that panel reviews are designed to produce decisions within 315 days after commencement.
In this case, the first substantive panel decision did not arrive until May 2024, approximately six and a half years after the challenge began.
The March 2026 ruling generated another remand, followed by the October 5 decision affirming Commerce’s second redetermination.
Measured from the November 14, 2017 request to the latest ruling, the proceeding lasted approximately 3,247 days.
Separate Antidumping Challenge Is Still Distinct
The countervailing-duty case should not be confused with the separate NAFTA proceeding challenging Commerce’s original 2017 antidumping determination.
In February 2026, the panel reviewing that case affirmed portions of Commerce’s first remand response but sent other issues back for further consideration.
The two proceedings address different trade-remedy determinations even though both arise from the broader U.S.-Canada softwood lumber dispute.
What Happens Next?
AR7 final rates: This is the most immediate financial issue for companies participating in the seventh administrative review. The current 25.18% “all others” figure is provisional only.
Section 232: The separate 10% tariff remains an additional cost for covered Canadian softwood lumber entering the United States.
Other legal challenges: Canada continues to challenge later administrative-review determinations through CUSMA and U.S. legal processes.
Extraordinary challenge procedure: NAFTA provides a narrow mechanism for extraordinary challenges involving specified procedural or jurisdictional issues, although Global Affairs Canada currently describes the October 5 decision as effectively concluding this challenge.
Export economics: With the United States still Canada's dominant lumber market, changes of even several percentage points in duty rates can materially affect mill netbacks, shipment decisions and the competitiveness of Canadian lumber.
ScrapMonster Market Read: The October 5 ruling is legally significant because it brings a nearly nine-year challenge to the original subsidy determination to an effective close. Commercially, however, Canadian lumber companies have a more immediate number to watch: the seventh administrative review. The difference between the current 35.16% “all others” AD/CVD rate and the 25.18% post-preliminary AR7 calculation is almost 10 percentage points. That potential change, together with the separate 10% Section 232 tariff, will matter more to near-term export economics than the closing of the original 2017 panel case.
Sources: Canada-Mexico-United States Secretariat; U.S. Department of Commerce; Global Affairs Canada.