Section XVI · Nuclear reactors, boilers, machinery and mechanical appliances; parts
8479.90
Parts:
Chapter
Nuclear reactors, boilers, machinery and mechanical appliances; parts
Heading
The product family within the chapter
Subheading
The specific good, identical worldwide
The first six digits are the same in every country that uses the Harmonized System. The United States adds two more for the tariff rate and, often, two more for statistics — which is why the rates below are listed against 8- and 10-digit numbers rather than against this code.
How the schedule reaches this code
- 84Nuclear reactors, boilers, machinery and mechanical appliances; parts
- 8479Machines and mechanical appliances having individual functions, not specified or included elsewhere in this chapter; parts thereof:
- Parts:
Published US duty rates
Duty is set at the 8- or 10-digit line, not at this 6-digit subheading, so more than one rate can sit under this code.
- 8479.90.41.00Of articles of subheading 8479.89.10 or 8479.89.70No.
- General
- Free
- Special (FTA)
- —
- Column 2
- 35%
No preferential rate published.
Countries without normal trade relations.
- 8479.90.45.00Frame assemblies incorporating more than one of the following: baseplate; side frames; power screws; front platesNo.
- General
- Free
- Special (FTA)
- —
- Column 2
- 35%
No preferential rate published.
Countries without normal trade relations.
- 8479.90.55.00Ram assemblies incorporating a ram wrapper and/or ram coverNo.
- General
- Free
- Special (FTA)
- —
- Column 2
- 35%
No preferential rate published.
Countries without normal trade relations.
- 8479.90.65.00Container assemblies incorporating more than one of the following: container bottom; container wrapper; slide track; container frontNo.
- General
- Free
- Special (FTA)
- —
- Column 2
- 35%
No preferential rate published.
Countries without normal trade relations.
- 8479.90.75.00Cabinets or casesNo.
- General
- Free
- Special (FTA)
- —
- Column 2
- 35%
No preferential rate published.
Countries without normal trade relations.
- 8479.90.85.00OtherNo.
- General
- Free
- Special (FTA)
- —
- Column 2
- 35%
No preferential rate published.
Countries without normal trade relations.
- 8479.90.95Other
- General
- Free
- Special (FTA)
- —
- Column 2
- 35%
No preferential rate published.
Countries without normal trade relations.
Schedule footnotes
- See 9903.88.15.
- See 9903.88.01.
A reference to Chapter 99 means an additional action — a Section 232 or 301 measure, an exclusion, or a quota — applies on top of the rate above.
This is the listed rate. Antidumping and countervailing duty orders, Chapter 99 actions and preference qualification all change what is actually collected, and classification is a judgement about your goods. Verify with your licensed customs broker before you file.
Other subheadings in heading 8479
- 8479.10Machinery for public works, building or the like
- 8479.20Machinery for the extraction or preparation of animal or fixed vegetable or microbial fats or oils
- 8479.30Presses for the manufacture of particle board or fiber building board of wood or other ligneous materials and other machinery for treating wood or cork
- 8479.40Rope or cable-making machines
- 8479.50Industrial robots, not elsewhere specified or included
- 8479.60Evaporative air coolers
- 8479.71Of a kind used in airports
- 8479.79Other
- 8479.81For treating metal, including electric wire coil-winders
- 8479.82Mixing, kneading, crushing, grinding, screening, sifting, homogenizing, emulsifying or stirring machines
- 8479.83Cold isostatic presses
- 8479.89Other:
Source: U.S. International Trade Commission (USITC) — 2026 HTS Revision 12, released 2026-07-21, published at hts.usitc.gov. A U.S. Government work in the public domain.