Creosote-Dipped Elm Guardrail Posts from Canada
Elm wood posts dipped in creosote preservative, left in rough state for highway guardrails and bridge supports. Classified HTS 4403.12.0060 as nonconiferous other rough wood treated with preservatives. Meets DOT specifications for impact-resistant roadside safety applications.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide DOT/AASHTO treatment certification for infrastructure project acceptance
• Document sapwood removal extent to justify rough wood tariff treatment
• Test for creosote off-gassing compliance with VOC import regulations