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84012000
NUCLEAR REACTORS, BOILERS, MACHINERY AND MECHANICAL APPLIANCES; PARTS THEREOFNuclear reactors; fuel elements (cartridges), non-irradiated, for nuclear reactors; machinery and apparatus for isotopic separation

Machinery and apparatus for isotopic separation, and parts thereof

Standard EU duty
3.7%
VAT
23%
Additional duties / sanctions
0 rules
Docs required
47 docs
C067Y069Y949X060X061X062+41
Standard rates
Applies toTypeRateConditionsRegulation
ERGA OMNESThird country duty3.7%R2261/98
Preferences
ERGA OMNES 0%AD 0%AL 0%BA 0%CA 0%CAMER 0%CARI 0%CH 0%CI 0%CL 0%CM 0%CO 0%DZ 0%EBA 0%EC 0%EEA 0%EG 0%EH 0%ESA 0%EUCA 0%FJ 0%FO 0%GB 0%GE 0%GH 0%GSP 0%GSP+ 0%IL 0%JO 0%JP 0%KE 0%KR 0%LB 0%LOMB 0%MA 0%MD 0%ME 0%MK 0%MX 0%NZ 0%PE 0%PG 0%PS 0%SADC EPA 0%SB 0%SG 0%SM 0%SWITZ 0%SY 0%TN 0%TR 0%UA 0%VN 0%WS 0%XC 0%XK 0%XL 0%XS 0%ZA 0%
Notes
TM5101. Customs duties shall be suspended in respect of goods intended for incorporation in the ships, boats or other vessels classified at the following CN codes 8901 10 10; 8901 20 10; 8901 30 10; 8901 90 10; 8902 00 10; 8903 91 10; 8903 92 10; 8904 00 10; 8904 00 91; 8905 10 10; 8905 90 10; 8906 10 00; 8906 90 10 for the purposes of their construction, repair, maintenance or conversion, and in respect of goods intended for fitting to or equipping such ships, boats or other vessels.2. Customs duties shall be suspended in respect of:(a) goods intended for incorporation in drilling or production platforms:(1) fixed, of subheading ex 8430 49, operating in or outside the territorial sea of Member States, or(2) floating or submersible, of subheading 8905 20, for the purposes of their construction, repair, maintenance or conversion, and in respect of goods intended for equipping the said platforms.(b) tubes, pipes, cables and their connection pieces, linking these drilling or production platforms to the mainland.
EU003According to The Special Provisions of Section II (A) (3) of the Preliminary Provisions of the Combined Nomenclature the suspension of customs duties for goods for certain categories of ships, boats and other vessels and for drilling or production platforms shall be subject to conditions laid down in the relevant provisions of the European Union with a view to customs control of the use of such goods.
CD303The relief from or reduction of customs duties shall be subject to the specific request expressed by the declarant in box 44 "Additional information/Documents produced/Certificates and authorisations", of the Single Administrative Document (SAD)
TM904Preferences granted under the agreement between the European Union and Morocco in force from 19 July 2019.As of 3 October 2025, products originating in Western Sahara subject to controls by the customs authorities of the Kingdom of Morocco shall benefit from trade preferences under the terms of the new Agreement in the form of exchange of letters between the EU and Morocco, The European Union and the Kingdom of Morocco have agreed to allow those products to be identified by reference to the region of origin to be included in the proof of origin and as provided for in Protocol 4.In view of the application of these measures, the origin certificates codes U179 and U180 must be declared.The country code to be entered in the origin declaration when these proofs of origin are used is “EH”.
CD727Eligibility to benefit from this preference is subject to the presentation of an origin declaration stating the European Union origin of the goods, in the context of the Canada-European Union Comprehensive Economic and Trade Agreement (CETA).
CD906The list of non-eligible locations and their postal codes is available at the following address: http://ec.europa.eu/taxation_customs/customs/technical-arrangement_postal-codes.pdf
CD500Eligibility to benefit from this preference is subject to the presentation of a proof of origin stating the community origin of the goods, in the context of the agreement between the European Union and the Swiss Confederation.

Scope of subheading 8401 20 – isotope separation

Subheading 8401 20 of the Combined Nomenclature covers machinery and apparatus for isotopic separation, and parts thereof. Isotope separation is a physical process of separating isotopes of the same element based on differences in atomic mass. The principal technologies include gas centrifuge enrichment, gaseous diffusion, laser separation (AVLIS, SILEX), electromagnetic separation (calutron), and aerodynamic separation. The subheading covers both complete uranium enrichment installations (centrifuge cascades) and individual gas centrifuges and their key components. Classification under subheading 8401 20 requires the equipment to be specifically designed for isotope separation. General-purpose equipment such as standard laboratory centrifuges is classified under other CN headings. Classification follows GRI rules 1 and 6 with reference to the Notes to Chapter 84. Isotope separation machinery constitutes goods subject to the highest level of control under the nuclear non-proliferation regime and requires detailed classification analysis. A Binding Tariff Information (BTI) ruling is strongly recommended.

Export and import controls on enrichment equipment

Isotope separation machinery under subheading 8401 20 is subject to the strictest trade controls under non-proliferation regimes. Regulation (EU) 2021/821 on the control of dual-use items classifies this equipment in Category 0 of Annex I, requiring both export and import licences. Gas centrifuges for uranium enrichment are listed under control entry 0B001. The Nuclear Suppliers Group (NSG) and the Zangger Committee establish international control lists covering these technologies. The Euratom Treaty governs trade in nuclear materials and equipment within the EU. Import requires authorisation from both the national nuclear regulatory authority and the export control authority. Documentation must include a detailed technical description, end-use statement, end-user certificate, and confirmation of compliance with IAEA safeguards. Transport is subject to hazardous materials regulations. EU sanctions against Iran, North Korea, and Russia prohibit or restrict trade in enrichment technologies with those countries.

Tariff and trade aspects of subheading 8401 20

MFN duty rates for isotope separation machinery under subheading 8401 20 should be verified in the European Commission's TARIC database. In practice, trade in these items is determined primarily by non-tariff restrictions arising from non-proliferation regulations rather than by customs duty levels. Commercial trade is concentrated among states with developed nuclear industries that participate in international control regimes. Chapter 84 products are not subject to the CBAM mechanism. Import from countries subject to EU sanctions is prohibited or strictly limited. UN Security Council resolutions impose additional restrictions on trade in enrichment technologies with specified countries. All transactions involving isotope separation machinery require full transparency towards control authorities and compliance with NPT and IAEA Additional Protocol obligations. The importer should consult the national export control authority before initiating the import procedure. Current rates and trade measures are available in TARIC.

Frequently asked questions

What isotope separation technologies does subheading 8401 20 cover?
Subheading 8401 20 covers all isotope separation technologies: gas centrifuge enrichment (centrifuge cascades), gaseous diffusion, laser separation (AVLIS, MLIS, SILEX), electromagnetic separation (calutron), aerodynamic methods, and chemical and ion exchange separation. Gas centrifuge technology is the most widely used industrial method. The subheading covers both complete installations and key components specifically designed for isotope separation. General-purpose laboratory equipment does not qualify for this subheading.
Do gas centrifuges for uranium enrichment require a dual-use licence?
Yes. Gas centrifuges for uranium enrichment are listed under control entry 0B001 in Category 0 of Annex I to Regulation (EU) 2021/821 and require a licence for both export and import. The licence is issued by the national export control authority following a detailed assessment of end-use, end-user, and proliferation risk. The procedure includes verification of compliance with NPT obligations, IAEA safeguards, and Nuclear Suppliers Group (NSG) guidelines. Licence denials are communicated to other EU Member States.
What EU sanctions apply to trade in isotope enrichment equipment?
The EU applies restrictive sanctions limiting or prohibiting trade in enrichment technologies with specified countries. Sanctions against Iran (Regulation (EU) No 267/2012) prohibit the transfer of nuclear technologies. Sanctions against North Korea implement UNSC resolutions banning all nuclear trade. Sanctions against Russia restrict cooperation in the nuclear sector. Violation of sanctions constitutes a criminal offence. The importer must verify the current sanctions status before each transaction using the Official Journal of the EU and sanctions databases maintained by the European Commission.