Atlantic and Pacific bluefin tunas (Thunnus thynnus, Thunnus orientalis)

HTS code 0303.45.01 covers frozen Atlantic and Pacific bluefin tuna (Thunnus thynnus and Thunnus orientalis). Use this code when importing these specific tuna species, as they generally enter the U.S. with free standard trade partner duty treatment under Chapter 3 provisions for fish and aquatic invertebrates.

Detailed information for HTS Code 0303.45.01

This entry falls within the broader category of fish and aquatic invertebrates, specifically dealing with frozen fish excluding fillets and fish meat. Code 0303.45.01 covers Atlantic and Pacific bluefin tunas, identifying these specific types of tuna fish. This code further breaks down into 0303.45.01.10 for *Thunnus thynnus* and 0303.45.01.50 for *Thunnus orientalis*; use the appropriate statistical suffix based on the specific tuna species being reported.

Chapter	Chapter 3 - Fish and crustaceans, molluscs and other aquatic invertebrates
Section	Section I - Live Animals; Animal Products

Duty snapshot

Quick reference for the duty outcomes tied to this HTS line.

General Duty

Free

Standard trade partners (NTR)

Special Duty

N/A

Eligible FTA or preference programs

The general duty rate for HTS code 0303.45.01 and its subdivisions (0303.45.01.10 and 0303.45.01.50) is free for standard trade partners (NTR). This means that imports meeting this criteria will not be subject to standard duties. Special rates are not specified, but may apply for eligible FTA or preference programs. All imports under this code and its subdivisions must be reported in kilograms (kg).

Rate of Duty (Column 2): Free

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Code subdivisions

0303.45.01.10

Fish, frozen, excluding fish fillets and other fish meat of heading 0304: > Tunas (of the genus Thunnus), skipjack tuna (stripe-bellied bonito) (Katsuwonus pelamis), excluding edible fish offal of subheadings 0303.91 to 0303.99: > Atlantic and Pacific bluefin tunas (Thunnus thynnus, Thunnus orientalis) > Thunnus thynnus

0303.45.01.50

View HTS reference

Chapter & section notes

Chapter notes

Harmonized Tariff Schedule of the United States Revision 29 (2025) Annotated for Statistical Reporting Purposes CHAPTER 3 FISH AND CRUSTACEANS, MOLLUSCS AND OTHER AQUATIC INVERTEBRATES I 3-1 Note 1. This chapter does not cover: (a) Mammals of heading 0106; (b) Meat of mammals of heading 0106 (heading 0208 or 0210); (c) Fish (including livers, roes and milt thereof) or crustaceans, molluscs or other aquatic invertebrates, dead and unfit or unsuitable for human consumption by reason of either their species or their condition (chapter 5); flours, meals or pellets of fish or of crustaceans, molluscs or other aquatic invertebrates, unfit for human consumption (heading 2301); or (d) Caviar or caviar substitutes prepared from fish eggs (heading 1604). 2. In this chapter the term "pellets" means products which have been agglomerated either directly by compression or by the addition of a small quantity of binder. 3. Headings 0305 to 0308 do not cover flours, meals and pellets, fit for human consumption (heading 0309). Additional U.S. Note 1. Certain fish, crustaceans, molluscs and other aquatic invertebrates are provided for in chapter 98. Statistical Note 1. Imports of shrimp or products of shrimp are subject to the provisions of section 609 of Public Law 101-162 of November 21, 1989 (16 U.S.C. 1537 note). Harmonized Tariff Schedule of the United States Revision 29 (2025) Annotated for Statistical Reporting Purposes I 3-2

Section notes

SECTION I LIVE ANIMALS; ANIMAL PRODUCTS I-1 Notes 1. Any reference in this section to a particular genus or species of an animal, except where the context otherwise requires, includes a reference to the young of that genus or species. 2. Except where the context otherwise requires, throughout the tariff schedule any reference to "dried" products also covers products which have been dehydrated, evaporated or freeze-dried. Harmonized Tariff Schedule of the United States Revision 29 (2025) Annotated for Statistical Reporting Purposes I-2 Harmonized Tariff Schedule of the United States Revision 29 (2025) Annotated for Statistical Reporting Purposes

Latest update

Last updated

November 15, 2025

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