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1504.20.40.00

Fats and oils and their fractions, of fish, other than liver oils / Herring

Classification path

  1. Fats and oils and their fractions, of fish or marine mammals, whether or not refined, but not chemically modified
  2. Fats and oils and their fractions, of fish, other than liver oils
  3. Herring

Rates of duty

General (MFN)
1¢/kg
Column 2Cuba, North Korea, Russia, Belarus
8¢/kg
Unit of quantity
kg

Trade agreement rates

FreeGSP (lapsed since Dec 31, 2020), U.S.-Australia FTA, U.S.-Bahrain FTA, U.S.-Chile FTA, U.S.-Colombia TPA, AGOA (authorized through Dec 31, 2026), E, U.S.-Israel FTA, U.S.-Jordan FTA, U.S.-Korea FTA, U.S.-Morocco FTA, U.S.-Oman FTA, CAFTA-DR, U.S.-Panama TPA, U.S.-Peru TPA, USMCA, U.S.-Singapore FTA

Related lines in heading 1504

About heading 1504

Fats and oils and their fractions, of fish or marine mammals, whether or not refined, but not chemically modified

Heading 1504 covers fats and oils and their fractions taken from fish or marine mammals, whether or not refined, as long as they are not chemically modified. The heading splits first by source: 1504.10 for fish-liver oils, 1504.20 for fish oils other than liver oils, and 1504.30 for marine mammals. The fish subheadings then split by species, with cod, herring and menhaden named separately.

Full guide to heading 1504

Products in this heading

  • Cod liver oil in bulk drums
  • Fish liver oil capsules filled with cod liver oil
  • Crude herring oil for animal feed
  • Menhaden oil for industrial or feed use
  • Refined fish body oil sold as a food ingredient
  • Whale oil and other marine mammal oils
  • Fish oil fractions such as concentrated omega-3 oil that has not been chemically modified

Frequently asked questions

What is the HTS code for cod liver oil?

Cod liver oil and its fractions are classified under 1504.10.20.00. The general (MFN) rate for that line is Free.

What is the duty on herring oil?

Fats and oils of fish other than liver oils, of herring, are classified under 1504.20.40.00. The general (MFN) rate is 1¢/kg.

How do I classify fish oil that is not from the liver?

Start with 1504.20, then pick the species line: cod oil is 1504.20.20.00 at a general (MFN) rate of Free. Menhaden oil is 1504.20.60.20 and any other fish oil is 1504.20.60.40, both at a general (MFN) rate of 1.5¢/kg + 5%.

Source: USITC Harmonized Tariff Schedule, retrieved October 22, 2026.

HTS 1504.20.40.00: Fats and oils and their fractions, of fish, other than live..., 1¢/kg duty | HTSBase