8431.10.00—Of machinery of heading 8425
General duty rate
Free
Across 2 10-digit lines
Coverage on this page
Plain-English explanation
HTS 8431.10.00 is an 8-digit tariff item of the U.S. Harmonized Tariff Schedule covering Of machinery of heading 8425. It sits in Chapter 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof, Section XVI: Machinery and Mechanical Appliances; Electrical Equipment; Parts Thereof; Sound Recorders and Reproducers, Television Image and Sound Recorders and Reproducers, and Parts and Accessories of Such Articles and rolls up 2 10-digit statistical lines, all with a general duty rate of Free. 24 Chapter 99 tariff modifications currently touch one or more lines under this tariff item.
10-digit lines under 8431.10.00(2)
Pick a line to view full rate detail and compute landed duty
Tariff modifications(24)
Chapter 99 overlays touching one or more lines under 8431.10.00
| Code | Authority | Rate |
|---|---|---|
| 9903.94.05 | section_232 | The duty provided in the applicable subheading + 25% |
| 9903.94.07 | section_232 | The duty provided in the applicable subheading + 25% |
| 9903.94.06 | section_232 | The duty provided in the applicable subheading |
| 9903.94.42 |
Frequently asked questions
What does HTS 8431.10.00 cover?
HTS 8431.10.00 is an 8-digit tariff item of the U.S. Harmonized Tariff Schedule covering Of machinery of heading 8425. It belongs to Chapter 84 and rolls up 2 10-digit statistical lines that brokers actually file at entry.
What is the duty rate for HTS 8431.10.00?
Every 10-digit line under HTS 8431.10.00 carries a general (Column 1) duty rate of Free. Section 301, Section 232, and AD/CVD overlays may stack on top of this rate at the per-line level — open a specific 10-digit code to see its complete tariff stack.
How do I find the right 10-digit line under HTS 8431.10.00?
U.S. Customs requires entries to be filed at the 10-digit statistical level — the broader tariff item HTS 8431.10.00 is not directly fileable. Match your product description to the most specific 10-digit line in the list on this page; if multiple lines could apply, the General Rules of Interpretation (GRIs) and chapter notes determine which one governs.
Are there AD/CVD orders affecting HTS 8431.10.00?
Learn more
Tandom guides relevant to this code
Section 301 China tariff exclusions in 2026
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How Chapter 99 tariff layers stack on a single entry
How to read, order, and report Chapter 99 HTS codes alongside the base classification on a US entry summary in 2026. The full stacking ladder for brokers and compliance teams.
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