Analysis
HTS 8421.12.00 covers centrifuges, including centrifugal dryers: clothes-dryers under heading 8421 (centrifuges, including centrifugal dryers; filtering or purifying machinery and…).
Within this group the rate runs from duty-free to 2.5%. Compared with 8421.31.00 (intake air filters for internal combustion engines), which pays 2.5%, a misclassification either way moves the duty by 2.5 percentage points.
The normal trade relations rate here is zero, shared by about 61% of the 823 tariff lines in chapter 84, a useful check when a neighbouring dutiable line is a candidate. Chapter 99 measures such as Section 301 or 232 can still apply on top, depending on where the goods come from.
Goods from countries without normal trade relations pay the column 2 rate of 25% instead of nothing, so origin decides between free entry and a 25% duty.
Census statistics map these goods to NAICS 335220 (Major Household Appliance Manufacturing), an industry of 180 US establishments employing 47,877 people. That concordance is how imports of this line are compared with US output.
Every edition we compared, from Jan 2023 to Oct 2026 (Rev. 22), shows the same general rate of Free.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 8421.11.00 | Centrifuges, including centrifugal dryers: cream separators | Free |
| 8421.19.00 | Centrifuges, including centrifugal dryers: other | 1.3% |
| 8421.21.00 | For filtering or purifying water | Free |
| 8421.22.00 | For filtering or purifying beverages other than water | Free |
| 8421.23.00 | Oil or fuel filters for internal combustion engines | 2.5% |
| 8421.29.00 | Filtering or purifying machinery and apparatus for liquids: other | Free |
| 8421.31.00 | Intake air filters for internal combustion engines | 2.5% |
| 8421.32.00 | Catalytic converters or particulate filters, whether or not combined, for purifying or filtering exhaust gases from internal combustion engines | Free |
| 8421.39.01 | Filtering or purifying machinery and apparatus for gases: other | Free |
| 8421.91.20 | Drying chambers for the clothes-dryers of subheading 8421.12 and other parts of clothes-dryers incorporating drying chambers | Free |
| 8421.91.40 | Furniture designed to receive the clothes-dryers of subheading 8421.12 | Free |
| 8421.91.60 | Of centrifuges, including centrifugal dryers: other | Free |
| 8421.99.01 | Parts: other | Free |