Softwood lumber from Canada has been subject to antidumping and countervailing duty orders for extended periods, with deposit rates that change following administrative reviews. Importers of dimensional lumber, OSB, and related products should verify current deposit rates with CBP and consult a customs broker, as rates vary by producer and can be retroactively adjusted.

Yes. USDA APHIS enforces ISPM-15 standards requiring that wood packaging material (pallets, crating, dunnage) used in any shipment be heat-treated or fumigated and marked accordingly. Additionally, imports of unprocessed logs or timber may require phytosanitary certificates and are subject to APHIS inspection to prevent introduction of invasive pests such as emerald ash borer.