Ship & Customs · HS Chapter 03
HS codes, chapter 03.
The 9 four-digit headings of Harmonized System chapter 03, 0301 to 0309, as published in the US Harmonized Tariff Schedule. Each heading opens the free lookup with its ten-digit statistical lines, the Schedule B export numbers that share its first six digits, and the general duty rate on every line.
Catalog snapshot: August 23, 2026. Source: USITC Harmonized Tariff Schedule headings in the RevAddress tariff catalog.
| Heading | Covers |
|---|---|
| 0301 | Live fish |
| 0302 | Fish, fresh or chilled, excluding fish fillets and other fish meat of heading 0304 |
| 0303 | Fish, frozen, excluding fish fillets and other fish meat of heading 0304 |
| 0304 | Fish fillets and other fish meat (whether or not minced), fresh, chilled or frozen |
| 0305 | Fish, dried, salted or in brine; smoked fish, whether or not cooked before or during the smoking process |
| 0306 | Crustaceans, whether in shell or not, live, fresh, chilled, frozen, dried, salted or in brine; smoked crustaceans, whether in shell or not, whether or not cooked before or during the smoking process; crustaceans, in shell, cooked by steaming or by boiling in water, whether or not chilled, frozen, dried, salted or in brine |
| 0307 | Molluscs, whether in shell or not, live, fresh, chilled, frozen, dried, salted or in brine; smoked molluscs, whether in shell or not, whether or not cooked before or during the smoking process |
| 0308 | Aquatic invertebrates other than crustaceans and molluscs, live, fresh, chilled, frozen, dried, salted or in brine; smoked aquatic invertebrates other than crustaceans and molluscs, whether or not cooked before or during the smoking process |
| 0309 | Flours, meals and pellets of fish, crustaceans, molluscs and other aquatic invertebrates, fit for human consumption |
A four-digit heading is the family; customs forms want the full code. USPS customs forms take the ten-digit HTS number on outbound mail, and export filings take the Schedule B number. Open a heading in the lookupto pick the exact line, or search by what the product is in plain words.
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The lookup is free with no daily cap. A whole catalog is one file: upload it and every SKU comes back with its HS heading, the ten-digit candidates, and the duty path, from $47.
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