About this tool
A U.S. import classification tool built for Chinese-speaking users. You describe a product; it works through the Harmonized Tariff Schedule heading by heading, applies the General Rules of Interpretation and returns candidate lines with reasoning, plus flags for Section 301 / 232 / 201 and AD/CVD measures.
Tariff text comes from the USITC's official HTSUS release and is shared with the usduty rate-lookup site, updated together. Candidates can only be chosen from real tariff lines; the model cannot invent a number.
Data version
- HTSUS
- Rev.21 · 2026-10-18.12
- Statistical lines
- 20242
- Models
- anthropic: claude-haiku-5-5 → claude-sonnet-5-5
Related sites
- usduty rate lookup — code, origin and date in, full duty stack out
- trade.boo — U.S. trade compliance news
AI-generated suggestion based on HTSUS text, not legal advice. Final classification rests with CBP rulings or licensed advice; the importer of record is responsible for the entry.