USDA Will Update Softwood Lumber Assessment Rules in 2026
Importers of European lumber will face adjusted assessment calculations starting October 22, 2026.
Updated on Sept. 22, 2026 in International Trade
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The U.S. Department of Agriculture will transition to a standardized nominal-volume calculation for softwood lumber assessments effective October 22, 2026. This change aims to resolve reporting discrepancies for international imports that previously used net dimensions.
Why it matters
The rule closes a loophole where European exporters used net dimensions, which previously created volume differences compared to nominal measurements. These changes shift compliance obligations for importers and are projected to increase the Softwood Lumber Board's annual budget by more than $367 thousand.
The USDA will apply a $0.62 rate to net-size shipments to align with the $0.41 nominal-volume rate, a change affecting 388 importers of European softwood lumber identified between 2022 and 2024. The board will simultaneously expand to 16 members to include a new seat for the U.S. South.
The players
U.S. Department of Agriculture
The federal agency responsible for overseeing agricultural production, forestry, and trade regulations.
Softwood Lumber Board
An industry-funded organization that promotes the use of softwood lumber and oversees research and market development programs.
The details
The USDA will require all manufacturers and importers to use nominal volume to calculate the 15 million board feet annual assessment exemption threshold. By applying the higher $0.62 per thousand board feet rate to net-size shipments, the agency effectively equalizes the cost basis for European lumber against North American nominal-volume standards. Businesses must update their reporting protocols to reflect these new measurement requirements.
Timeline
The Softwood Lumber Board first identified the reporting discrepancy in 2021.
U.S. South production data was recorded from 2022-2024.
The new assessment rule takes effect October 22, 2026.
Market Landscape
This adjustment follows a broader industry trend toward harmonizing measurement standards for imported building materials. It follows the Softwood Lumber Board's oversight mandate to ensure equitable assessment coverage across all market participants regardless of regional reporting practices.
Importers currently using net-dimension reporting should re-calculate their expected assessments based on nominal volumes to adjust their 2026 procurement budgets. Owners should verify their eligibility for the 15 million board foot exemption threshold against the new standard before the October 2026 deadline.
The takeaway
The transition to nominal-volume assessments creates a more consistent cost structure for U.S. lumber market participants. Operators should review their existing supply contracts and documentation to ensure reporting matches the new standard prior to the October 22, 2026, implementation date.
Further reading
For broader context on current trade policies affecting building materials, visit the International Trade section.
Source note: This article includes information reported by Lesprom Network.
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