U.S. import tariffs · heading 8401

Heading 8401: Nuclear reactors; fuel elements (cartridges), non-irradiated, for nuclear reactors…

Every line of heading 8401 in the U.S. Harmonized Tariff Schedule, with its general (column 1) duty rate. Open a code for the landed cost calculator, trade agreement rates and email alerts if the rate changes.

Nuclear reactors; fuel elements (cartridges), non-irradiated, for nuclear reactors; machinery and apparatus for isotopic separation; parts thereof

Chapter 84: Machinery, mechanical appliances, boilers and nuclear reactors. Schedule checked on November 8, 2026.

Not always the total: additional chapter 99 duties (such as Section 232 or Section 301), antidumping or countervailing duties may apply depending on the country of origin. See recent chapter 99 changes →

Tariff lines

HTS codeOfficial descriptionGeneral rate
8401.10.00.00Nuclear reactors3.3%
8401.20.00.00Machinery and apparatus for isotopic separation, and parts thereof2.6%
8401.30.00.00Fuel elements (cartridges), non-irradiated, and parts thereof3.3%
8401.40.00.00Parts of nuclear reactors3.3%

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Exports are reported with Schedule B numbers. Heading 8401 has 4 of them. Schedule B lookup →

Source: U.S. International Trade Commission, Harmonized Tariff Schedule; Schedule B: U.S. Census Bureau. Information only, not legal or customs advice; U.S. Customs and Border Protection decides the classification and the duty. Confirm with a licensed customs broker before you ship.

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