US HTS
U.S. Harmonized Tariff Schedule
Search U.S. tariff classifications alongside CBP rulings and Customs Bulletins.
Explore tariff codes
Start with a familiar product and see how its code fits into the U.S. HTS.
Tariff Code Compliance Explorer
Choose a schedule to search codes, inspect exact-version hierarchy, and follow related classification evidence.
US HTS
Search U.S. tariff classifications alongside CBP rulings and Customs Bulletins.
Start with a familiar product and see how its code fits into the U.S. HTS.
Start with the buyer or reviewer job, then trace each claim to exact-version Explorer data and clearly stated evidence boundaries.
See which inputs, outputs, versioned evidence, and review boundaries matter when evaluating classification software.
View guideReview the facts, alternatives, uncertainty, and reviewer state needed for a defensible classification audit.
View guideUse the API-designated default and available exact releases instead of assuming a hard-coded tariff version.
View guideLearn what public release metadata can establish, and where a source-backed change claim needs more evidence.
View guideInspect a synthetic cotton T-shirt example with assumptions, selected and rejected codes, and review status.
View guideRead a transparent, source-backed guide to the capabilities and evidence available across classification tools.
View guide