Tariff Watch24 statistical lines under this heading · 3 distinct Column 1 rates · highest ad valorem total 37.50% from China · lowest 10.00% from United Kingdom
| Origin | Ad valorem layers | Layers | Reported under |
|---|---|---|---|
| China CHN | 37.50% | mfn + s301 + s301 | 9903.88.03 9903.05.31 |
| Vietnam VNM | 12.50% | mfn + s301 | 9903.05.84 |
| Japan JPN | 12.50% | s301 | 9903.05.49 |
| South Korea KOR | 12.50% | s301 | 9903.05.71 |
| Thailand THA | 12.50% | mfn + s301 | 9903.05.77 |
| Brazil BRA | 12.50% | mfn + s301 | 9903.05.27 |
| Mexico MEX | 10.00% | mfn + s301 | 9903.05.55 |
| Canada CAN | 10.00% | mfn + s301 | 9903.05.29 |
| India IND | 10.00% | mfn + s301 | 9903.05.44 |
| Germany DEU | 10.00% | s301 | 9903.05.39 |
| Italy ITA | 10.00% | s301 | 9903.05.39 |
| United Kingdom GBR | 10.00% | mfn + s301 | 9903.05.81 |
| Code | Description | Column 1 | Special | Units |
|---|---|---|---|---|
| 8421.11.00.00 | Cream separators | Free | No. | |
| 8421.12.00.00 | Clothes-dryers | Free | No. | |
| 8421.19.00.00 | Other | 1.3% | No. | |
| 8421.21.00.00 | For filtering or purifying water | Free | No. | |
| 8421.22.00.00 | For filtering or purifying beverages other than water | Free | No. | |
| 8421.23.00.00 | Oil or fuel filters for internal combustion engines | 2.5% | No. | |
| 8421.29.00.05 | Refrigerant recovery and recycling units | inherited | No. | |
| 8421.29.00.15 | Oil-separation equipment | inherited | No. | |
| 8421.29.00.40 | Hydraulic fluid power filters, rated at 1,000 kPa or greater | inherited | No. | |
| 8421.29.00.65 | Other | inherited | No. | |
| 8421.31.00.00 | Intake air filters for internal combustion engines | 2.5% | No. | |
| 8421.32.00.00 | Catalytic converters or particulate filters, whether or not combined, for purifying or filtering exhaust gases from internal combustion engines | Free | No. | |
| 8421.39.01.05 | For machine tools of headings 8456 through 8465, inclusive | inherited | kg | |
| 8421.39.01.15 | Other | inherited | kg | |
| 8421.39.01.20 | Electrostatic precipitators | inherited | No. | |
| 8421.39.01.30 | Other | inherited | No. | |
| 8421.39.01.40 | Gas separation equipment | inherited | No. | |
| 8421.39.01.60 | Pneumatic fluid power filters, rated at 550 kPa or greater | inherited | No. | |
| 8421.39.01.90 | Other | inherited | kg | |
| 8421.91.20.00 | Drying chambers for the clothes-dryers of subheading 8421.12 and other parts of clothes-dryers incorporating drying chambers | Free | No. | |
| 8421.91.40.00 | Furniture designed to receive the clothes-dryers of subheading 8421.12 | Free | No. | |
| 8421.91.60.00 | Other | Free | kg | |
| 8421.99.01.40 | Parts of machinery and apparatus for filtering or purifying water | inherited | kg | |
| 8421.99.01.80 | Other | inherited | kg |
| Programme | Rate as published | Contribution | Reported under | In force from |
|---|---|---|---|---|
| Column 1 General (MFN) | Free | 0.00% | — | not established |
Source: USITC, Harmonized Tariff Schedule of the United States, 2026 HTS Revision 17, published 2026-08-01. Verified 2026-08-31. | ||||
| Section 301 | The duty provided in the applicable subheading + 25% | 25.00% | 9903.88.03 | 2018-09-24 |
Status unconfirmed. The second statutory four-year review of this action is running. The continuation-request deadlines for the underlying 2018 actions closed on 2026-07-05 and 2026-08-22 and no continuation notice has been published. There is no evidence of termination either, and the duty is almost certainly still collectible; what we cannot do is cite a document saying so. Source: USTR, Notice of Modification of Section 301 Action: China's Acts, Policies and Practices Related to Technology Transfer (List 3) (83 FR 47974), published 2018-09-21. Verified 2026-08-31. | ||||
| Section 301 | The duty provided in the applicable subheading + 12.5% | 12.50% | 9903.05.31 | 2026-07-24 |
Source: USTR, Notice of Actions in Section 301 Investigations of Various Economies (FR Doc. 2026-15181), published 2026-07-28. Verified 2026-08-31. | ||||
Common questions
- What is the duty rate for HTS 8421?
- Heading 8421 covers centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus, for liquids or gases; parts thereof. Duty is assessed at the 10-digit statistical line; the figures here are resolved for 8421.11.00.00, the first line under this heading. Its Column 1 rate is Free; other lines under 8421 carry different Column 1 rates. On top of that, the ad valorem total depends on origin: China carries 37.50% and United Kingdom carries 10.00%.
- Why does the rate differ by country for the same HTS code?
- The Column 1 rate is the same for every origin with normal trade relations. Trade-remedy duties under Sections 232, 301 and 338 are imposed by origin, by product, or by both, so two shipments of the same article from different countries can carry very different totals.
- Is this the rate I will actually pay?
- It is the rate that applies to this classification and origin on the date shown. The duty owed on a specific entry also depends on the 10-digit statistical suffix, declared content where a duty is content-based, preference eligibility, and any AD/CVD order in scope.