Section I · Fish, crustaceans, molluscs and other aquatic invertebrates

0307.51

Live, fresh or chilled

Not sure this is your code? Try the HS code finder

How this code is built
03

Chapter

Fish, crustaceans, molluscs and other aquatic invertebrates

07

Heading

The product family within the chapter

51

Subheading

The specific good, identical worldwide

The first six digits are the same in every country that uses the Harmonized System. The United States adds two more for the tariff rate and, often, two more for statistics — which is why the rates below are listed against 8- and 10-digit numbers rather than against this code.

How the schedule reaches this code

  1. 03Fish, crustaceans, molluscs and other aquatic invertebrates
  2. 0307Molluscs, 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:
  3. Octopus (Octopus spp.):
  4. Live, fresh or chilled

Published US duty rates

Duty is set at the 8- or 10-digit line, not at this 6-digit subheading, so more than one rate can sit under this code.

  • 0307.51.00.00Live, fresh or chilledkg
    General
    Free
    Special (FTA)
    —

    No preferential rate published.

    Column 2
    Free

    Countries without normal trade relations.

This is the listed rate. Antidumping and countervailing duty orders, Chapter 99 actions and preference qualification all change what is actually collected, and classification is a judgement about your goods. Verify with your licensed customs broker before you file.

Estimate the duty for this code

Choose where the goods come from and enter their customs value in US dollars. Free, with no signup — an estimate from the published rates, to confirm with your licensed customs broker.

Open the full calculator

Other subheadings in heading 0307

Source: U.S. International Trade Commission (USITC) — 2026 HTS Revision 20, released 2026-09-28, published at hts.usitc.gov. A U.S. Government work in the public domain.