Nuclear Reactors, Boilers, Machinery · 4 pending regulations · 10 court cases · $1087.1M monthly imports · 100% from 1 countries · Updated daily from USITC
General
Free
Special
Free
Column 2
Free
Trade Agreement Eligibility
Monthly Imports
$1087.1M
2026-01
Trade Concentration
100%
from top 3 of 1 origins
Regulatory Pressure
HIGH
0 rulings — · 4 reg · 8 CIT, 2 CAFC
Global Rates
🇺🇸 Free
🇬🇧 United Kingdom: N/A · 🇪🇺 European Union: N/A · 🇨🇦 Canada: N/A · 🇧🇷 Brazil: N/A
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Data compiled from USITC HTS, US Census Bureau, Federal Register, CourtListener, Regulations.gov · As of 2026-04-29 · Updates monthly
This code has elevated regulatory activity — 0 CBP rulings (0 in last 2 years, trend: stable), 4 pending Federal Register actions, and 10 CIT/CAFC cases.
100% of US imports for this code come from just 1 countries. High origin concentration increases exposure to trade disruptions or tariff escalations.
This is a high-volume import code — $1087M in monthly US imports. Duty rate changes or trade remedy actions on this code have significant economic impact.
List 1 — ~$34B of Chinese goods (machinery, electronics, industrial components)
Active — 7.5%–25% additional duties on Chinese-origin goods across four tranches (Lists 1–4A), with higher 2024/2025 increases on targeted product categories.
Effective 2018-07-06
These additional tariffs apply on top of the general duty rate. View full trade remedy tracker →
| Code | Description | Rate |
|---|---|---|
| 8421.11.00.00 | Cream separators | Free |
| 8421.12.00.00 | Clothes-dryers | Free |
| 8421.19.00.00 | Other | 1.3% |
| 8421.21.00.00 | For filtering or purifying water | Free |
| 8421.22.00.00 | For filtering or purifying beverages other than water | Free |
| 8421.23.00.00 | Oil or fuel filters for internal combustion engines | 2.5% |
| 8421.29.00 | Other | Free |
| 8421.29.00.05 | Refrigerant recovery and recycling units | — |
| 8421.29.00.15 | Oil-separation equipment | — |
| 8421.29.00.40 | Hydraulic fluid power filters, rated at <il>1,000 kPa</il> or greater | — |
| 8421.29.00.65 | Other | — |
| 8421.31.00.00 | Intake air filters for internal combustion engines | 2.5% |
| 8421.32.00.00 | Catalytic converters or particulate filters, whether or not combined, for purifying or filtering exhaust gases from internal combustion engines | Free |
| 8421.39.01 | Other | Free |
| 8421.39.01.05 | For machine tools of headings 8456 through 8465, inclusive | — |
| 8421.39.01.15 | Other | — |
| 8421.39.01.20 | Electrostatic precipitators | — |
| 8421.39.01.30 | Other | — |
| 8421.39.01.40 | Gas separation equipment | — |
| 8421.39.01.60 | Pneumatic fluid power filters, rated at <il>550 kPa</il> or greater | — |
| 8421.39.01.90 | Other | — |
| 8421.91 | Of centrifuges, including centrifugal dryers: | — |
| 8421.91.20.00 | Drying chambers for the clothes-dryers of subheading 8421.12 and other parts of clothes-dryers incorporating drying chambers | Free |
| 8421.91.40.00 | Furniture designed to receive the clothes-dryers of subheading 8421.12 | Free |
| 8421.91.60.00 | Other | Free |
| 8421.99.01 | Other | Free |
| 8421.99.01.40 | Parts of machinery and apparatus for filtering or purifying water | — |
| 8421.99.01.80 | Other | — |
Publication of a report.
Publication of a report.
Publication of a report.
Request for comments and notice of public hearing.
USTR regulatory documents related to this tariff code from Regulations.gov.
Comment from Vontoba Terry, Braumiller Law Group, PLLC
Request for Comments: Proposed Modification of Action Pursuant to Section 301: China's Acts, Policies, and Practices Related to Technology Transfer, Intellectual Property, and Innovation
Exclusion Denied, GE Appliances, PCB Assembly, HTS 8537103000
Exclusion Denied, GE Appliances, PCB Assembly, HTS 8537103000
Exclusion Denied, GE Appliances, PCB Assembly, HTS 8537103000
Source: Regulations.gov
CREAM SEPARATORS
Census Bureau export classification matching this HTS import code.
