TourAxiom/US Federal/Statutes/Hts/§ 9504.90.90HTS 9504.90.90∀4 rulesOfficial sourcegraph ↗build calculator ↗citeOther Rates of duty (1-General): Free Rates of duty (2): 40%← HTS 9504.90.60.00HTS 9504.90.90.40 →