8418.21.00—Compression type
General duty rate
Free
Across 4 10-digit lines
Coverage on this page
Plain-English explanation
HTS 8418.21.00 is an 8-digit tariff item of the U.S. Harmonized Tariff Schedule covering Compression type. 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 4 10-digit statistical lines, all with a general duty rate of Free. 9 Chapter 99 tariff modifications currently touch one or more lines under this tariff item.
10-digit lines under 8418.21.00(4)
Pick a line to view full rate detail and compute landed duty
8418.21.00.10Having a refrigerated volume of under 184 litersFree8418.21.00.20Having a refrigerated volume of 184 liters and over but under 269 litersFree8418.21.00.30Having a refrigerated volume of 269 liters and over but under 382 litersFree8418.21.00.90Having a refrigerated volume of 382 liters and overFreeTariff modifications(9)
Chapter 99 overlays touching one or more lines under 8418.21.00
| Code | Authority | Rate |
|---|---|---|
| 9903.82.05 | section_232 | 15% |
| 9903.82.13 | section_232 | 0% |
| 9903.81.91 | section_232 | The duty provided in the applicable subheading + a duty of 50% upon the value of the steel content. |
| 9903.82.15 |
Frequently asked questions
What does HTS 8418.21.00 cover?
HTS 8418.21.00 is an 8-digit tariff item of the U.S. Harmonized Tariff Schedule covering Compression type. It belongs to Chapter 84 and rolls up 4 10-digit statistical lines that brokers actually file at entry.
What is the duty rate for HTS 8418.21.00?
Every 10-digit line under HTS 8418.21.00 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 8418.21.00?
U.S. Customs requires entries to be filed at the 10-digit statistical level — the broader tariff item HTS 8418.21.00 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 8418.21.00?
Learn more
Tandom guides relevant to this code
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.
Open resource
How to calculate US import duties
A working guide to the inputs, the layers, and the math behind a US entry summary in 2026. Written for brokers, forwarders, and importer compliance teams.
Open resource