US HTS chapter guides

Browse useful US tariff chapters without guessing a product code

These chapter pages are a bounded authority layer over TariffCalc's published USITC schedule. They expose real schedule counts and headings, then point you to exact HTS lookup or a fresh tariff calculation. A chapter is not itself a customs classification.

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2026 HTS Revision 12 · published source 2026-07-21 · 29,734 indexed tariff lines

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