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HSChapter 84
U.S. imports of isotopic separation machinery, apparatus & parts (HS 840120) totaled $6.1M in April 2026, traded with 4 countries.
Importers of Isotopic Separation Machinery, Apparatus & Parts paid $1.0M in duties in April 2026 — an effective duty rate of 13% on $8.2M in dutiable value, based on actual customs collections rather than the published tariff schedule. Isotopic Separation Machinery, Apparatus & Parts imports of $6.1M in April 2026 ran 31% above the year-to-date monthly average of $4.7M.
Last updated: April 2026 dataIsotopic separation equipment — used in uranium enrichment and the production of medical or industrial isotopes — is classified under a single US tariff line (8401200000) and is subject to NRC export and import controls given its direct relevance to nuclear nonproliferation. Centrifuge cascades, gaseous diffusion equipment, and laser-based separation systems all fall within this heading, making precise technical documentation critical at entry. Trade in this category is highly specialized, with transactions typically occurring between government-affiliated entities or licensed nuclear fuel cycle operators.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
The heading covers machinery and apparatus used to separate isotopes of any element, including uranium enrichment centrifuges, gaseous diffusion equipment, and electromagnetic or laser separation systems, as well as parts for such machinery. Both civilian fuel-cycle and medical-isotope production equipment may fall here depending on design.
Yes. Isotopic separation machinery is subject to NRC import licensing and is also controlled under the Nuclear Suppliers Group guidelines. Importers should verify that the foreign supplier holds appropriate export authorization from its home country and that the US importer holds any required NRC license before arranging shipment.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| NETHERLANDS | $4.8M | -- | -$4.8M |
| GERMANY | $1.3M | -- | -$1.3M |
| ITALY | $24K | -- | -$24K |
| DOMINICAN REPUBLIC | -- | $14K | +$14K |
| INDIA | -- | $3K | +$3K |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 8401200000 | ISOTOPIC SEPARATION MACHINERY, APPARATUS AND PARTS | $6.1M | 12.60% | $1.0M |
ISOTOPIC SEPARATION MACHINERY, APPARATUS AND PARTS
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8401200000 | ISOTOPIC SEPARATION MACHINERY, APPARATUS AND PARTS | $16K |
ISOTOPIC SEPARATION MACHINERY, APPARATUS AND PARTS
2 t
DIGITAL PROCESSING UNITS, N.E.S.O.I.
HS 847150
PARTS & ACCESSORIES FOR ADP MACHINES & UNITS
HS 847330
PORT DIGTL AUTOMATIC DATA PROCESS MACH NOT > 10 KG
HS 847130
AUTOMATIC DATA PROCESSING STORAGE UNITS, N.E.S.O.I
HS 847170
AUTOMATIC DATA PROCESSING UNITS, N.E.S.O.I.
HS 847180
TURBOJET AND TURBOPROLLER PARTS
HS 841191
| State | Imports | Exports | Balance |
|---|---|---|---|
| New Mexico | $6.1M | -- | -$6.1M |
| New Jersey | -- | $14K | +$14K |
| Georgia | -- | $3K | +$3K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| HOUSTON, TX | $6.1M | -- | -$6.1M |
| NEW YORK, NY | -- | $14K | +$14K |
| ATLANTA, GA | -- | $3K | +$3K |