# United States tariff line 0303.45.01.10: Thunnus thynnus

> In the United States tariff, line 0303.45.01.10 covers 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. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 0303.45 in heading 03.03 (chapter 03).

Source: https://border.bot/countries/united-states/hs-codes/0303450110
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 03](https://border.bot/countries/united-states/hs-codes/03) / [0303.45](https://border.bot/countries/united-states/hs-codes/030345) / [0303.45.01.10](https://border.bot/countries/united-states/hs-codes/0303450110)

## Key facts

- Tariff line: 0303.45.01.10
- Covers: 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
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [0303.45](https://border.bot/hs-codes/030345)

## What this line covers

In the United States tariff, line 0303.45.01.10 covers 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.

Its legal text is “Thunnus thynnus”, read under “Tunas (of the genus Thunnus), skipjack tuna (stripe-bellied bonito) (Katsuwonus pelamis), excluding edible fish offal of subheadings 0303.91 to 0303.99” and “Atlantic and Pacific bluefin tunas (Thunnus thynnus, Thunnus orientalis)”.

## How it is structured

It falls under HS subheading 0303.45 in heading 03.03 (chapter 03). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff.

- Chapter 03: Fish and crustaceans, molluscs and other aquatic invertebrates
- Heading 03.03: Fish, frozen, excluding fish fillets and other fish meat of heading 0304
- Subheading 0303.45: Tunas (of the genus Thunnus), skipjack tuna (stripe-bellied bonito) (Katsuwonus pelamis), excluding edible fish offal of subheadings 0303.91 to 0303.99
- Within the subheading: Atlantic and Pacific bluefin tunas (Thunnus thynnus, Thunnus orientalis)
- Line 0303.45.01.10: Thunnus thynnus

## Duty

Goods under this line enter free of general (MFN) duty.

The rate is published on 0303.45.01.

## In other countries

No other national tariff on border.bot has live lines under 0303.45 yet.

- [The Harmonized System text for 0303.45](https://border.bot/hs-codes/030345)

## Other lines under 0303.45

- [0303.45.01.50](https://border.bot/countries/united-states/hs-codes/0303450150) Thunnus orientalis

- Previous line: [0303.44.00.00](https://border.bot/countries/united-states/hs-codes/0303440000) Bigeye tunas (Thunnus obesus)
- Next line: [0303.45.01.50](https://border.bot/countries/united-states/hs-codes/0303450150) Thunnus orientalis

## Frequently asked questions

### What does tariff line 0303.45.01.10 cover in the United States tariff?

In the United States tariff, line 0303.45.01.10 covers 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.

### What is the general (MFN) duty on 0303.45.01.10 in the United States?

Goods under this line enter free of general (MFN) duty. The rate is published on 0303.45.01.

## Sources and updates

The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

This page was last updated on 9 October 2026.

Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.

Official source files:

- https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false

Machine-readable: https://border.bot/countries/united-states/hs-codes/0303450110.json