84041000
NUCLEAR REACTORS, BOILERS, MACHINERY AND MECHANICAL APPLIANCES; PARTS THEREOF›Auxiliary plant for use with boilers of heading 8402 or 8403 (for example, economisers, superheaters, soot removers, gas recoverers); condensers for steam or other vapour power units
Auxiliary plant for use with boilers of heading 8402 or 8403
Standard EU duty
2.7%
VAT
23%
Additional duties / sanctions
0 rules
Docs required
15 docs
X858Y811X834X837X840Y708+9
Standard rates
| Applies to | Type | Rate | Conditions | Regulation |
|---|---|---|---|---|
| ERGA OMNES | Third country duty | 2.7% | — | 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.
Export controlBYR0765/06
Export control
BYR0765/06
Documents / references
X858Y811
Conditions
- Y001Other conditions: Y811— Import/export allowed after control
- Y010Other conditions: X858— Import/export allowed after control
- Y090Other conditions: the condition is not fulfilled— Import/export not allowed after control
Notes
- TM956it shall be prohibited: to sell, supply, transfer or export, directly or indirectly, machinery as listed in Annex XIV, whether or not originating in the Union, to any person, entity or body in Belarus or for use in Belarus;COUNCIL REGULATION (EC) No 765/2006 - Article 1s.1 (COUNCIL REGULATION (EU) 2022/355)
Import prohibitionKPR0285/18
Import prohibition
KPR0285/18
Notes
- TM884Goods from the Annex XIh of Regulation (EU) 2018/285 (Machinery and electrical equipment)
Export prohibitionKPR0285/18
Export prohibition
KPR0285/18
Notes
- TM888Goods from the Annex XI l of Regulation (EU) 2017/1509 (Industrial machinery, transportation vehicles, iron, steel and other metals)
Export controlRUR0833/14
Export control
RUR0833/14
Documents / references
X834X837X840Y708Y833
Conditions
- Y001Other conditions: X834— Import/export allowed after control
- Y005Other conditions: X840— Import/export allowed after control
- Y007Other conditions: X837— Import/export allowed after control
- Y010Other conditions: Y833— Import/export allowed after control
- Y030Other conditions: Y708— Import/export allowed after control
- Y090Other conditions: the condition is not fulfilled— Import/export not allowed after control
Notes
- CD869It shall be prohibited to sell, supply, transfer or export, directly or indirectly, goods which could contribute in particular to the enhancement of Russian industrial capacities as listed in Annex XXIII, to any natural or legal person, entity or body in Russia or for use in Russia.
Export controlUAR0692/14
Export control
UAR0692/14
Documents / references
X802Y997
Conditions
- Y001Other conditions: Y997— Export allowed
- Y005Other conditions: X802— Export allowed
- Y009Other conditions: the condition is not fulfilled— Export is not allowed
Notes
- CD967I. According to Council Regulation (EU) No 692/2014, it shall be prohibited to import into European Union goods originating in Crimea or Sevastopol.The prohibition shall not apply in respect of goods originating in Crimea or Sevastopol which have been made available to the Ukrainian authorities for examination, for which compliance with the conditions conferring entitlement to preferential origin has been verified and for which a certificate of origin has been issued in accordance with the Association Agreement between the European Union and its Member States, of the one part, and Ukraine, of the other part.II. According to the Council Regulation (EU) 692/2014, the export of goods and technologies suited for use in the sectors of transport; telecommunications; energy; prospection, exploration and production of oil, gas and mineral resources is prohibited:(a) to any natural or legal person, entity or body in Crimea or Sevastopol, or(b) for use in Crimea or Sevastopol.
Import controlUAR0692/14
Import control
UAR0692/14
Documents / references
N954U045U078U079Y997
Conditions
- Y001Other conditions: Y997— Import allowed
- Y002Other conditions: U078— Import allowed
- Y003Other conditions: U079— Import allowed
- Y005Other conditions: N954— Import allowed
- Y007Other conditions: U045— Import allowed
- Y009Other conditions: the condition is not fulfilled— Import is not allowed
Notes
- CD967I. According to Council Regulation (EU) No 692/2014, it shall be prohibited to import into European Union goods originating in Crimea or Sevastopol.The prohibition shall not apply in respect of goods originating in Crimea or Sevastopol which have been made available to the Ukrainian authorities for examination, for which compliance with the conditions conferring entitlement to preferential origin has been verified and for which a certificate of origin has been issued in accordance with the Association Agreement between the European Union and its Member States, of the one part, and Ukraine, of the other part.II. According to the Council Regulation (EU) 692/2014, the export of goods and technologies suited for use in the sectors of transport; telecommunications; energy; prospection, exploration and production of oil, gas and mineral resources is prohibited:(a) to any natural or legal person, entity or body in Crimea or Sevastopol, or(b) for use in Crimea or Sevastopol.
Import controlUAR0263/22
Import control
UAR0263/22
Documents / references
N954U045U078U079Y984
Conditions
- Y001Other conditions: Y984— Import/export allowed after control
- Y002Other conditions: N954— Import/export allowed after control
- Y005Other conditions: U045— Import/export allowed after control
- Y006Other conditions: U078— Import/export allowed after control
- Y007Other conditions: U079— Import/export allowed after control
- Y009Other conditions: the condition is not fulfilled— Import/export not allowed after control
Notes
- CD860According to Council Regulation (EU) 2022/263 (OJ L42I, p. 77):I. It shall be prohibited to import into the European Union goods originating in non-government controlled areas of the Donetsk, Kherson, Luhansk and Zaporizhzhia oblasts of Ukraine.The import prohibitions not apply in respect of: (a) the execution until 24 May 2022 of trade contracts concluded before 23 February 2022, or of ancillary contracts necessary for the execution of such contracts, provided that the natural or legal person, entity or body seeking to perform the contract has notified, at least 10 working days in advance, the activity or transaction to the competent authority of the Member State in which they are established; (b) goods originating in the specified territories which have been made available to the Ukrainian authorities for examination, for which compliance with the conditions conferring entitlement to preferential origin has been verified and for which a certificate of origin has been issued in accordance with the EU-Ukraine Association Agreement.II. It shall be prohibited to sell, supply, transfer or export goods and technology listed in Annex II to Council Regulation (EU) 2022/263: (a) to any natural or legal person, entity or body in the specified territories, or (b) for use in the specified territories. Annex II shall include certain goods and technologies suited for use in the following key sectors: (i) transport;(ii) telecommunications;(iii) energy; (iv) the prospecting, exploration and production of oil, gas and mineral resources. The prohibitions in point II above shall be without prejudice to the execution until 24 August 2022 of an obligation arising from a contract concluded before 23 February 2022, or from ancillary contracts necessary for the execution of such contracts, provided that the competent authority has been informed at least five working days in advance.
Export controlUAR0263/22
Export control
UAR0263/22
Documents / references
X985Y984
Conditions
- Y001Other conditions: Y984— Import/export allowed after control
- Y003Other conditions: X985— Import/export allowed after control
- Y004Other conditions: the condition is not fulfilled— Import/export not allowed after control
Notes
- CD860According to Council Regulation (EU) 2022/263 (OJ L42I, p. 77):I. It shall be prohibited to import into the European Union goods originating in non-government controlled areas of the Donetsk, Kherson, Luhansk and Zaporizhzhia oblasts of Ukraine.The import prohibitions not apply in respect of: (a) the execution until 24 May 2022 of trade contracts concluded before 23 February 2022, or of ancillary contracts necessary for the execution of such contracts, provided that the natural or legal person, entity or body seeking to perform the contract has notified, at least 10 working days in advance, the activity or transaction to the competent authority of the Member State in which they are established; (b) goods originating in the specified territories which have been made available to the Ukrainian authorities for examination, for which compliance with the conditions conferring entitlement to preferential origin has been verified and for which a certificate of origin has been issued in accordance with the EU-Ukraine Association Agreement.II. It shall be prohibited to sell, supply, transfer or export goods and technology listed in Annex II to Council Regulation (EU) 2022/263: (a) to any natural or legal person, entity or body in the specified territories, or (b) for use in the specified territories. Annex II shall include certain goods and technologies suited for use in the following key sectors: (i) transport;(ii) telecommunications;(iii) energy; (iv) the prospecting, exploration and production of oil, gas and mineral resources. The prohibitions in point II above shall be without prejudice to the execution until 24 August 2022 of an obligation arising from a contract concluded before 23 February 2022, or from ancillary contracts necessary for the execution of such contracts, provided that the competent authority has been informed at least five working days in advance.
Value Added Tax (VAT)
V020Medical devices, as defined by the Act on Medical Devices of 20 May 2010, (Journal of Laws of 2019, item 175, 447, 534), released for free circulation on the territory of the Republic of Poland
8%V052Devices for writing and reading texts in Braille
8%V120For medical devices referred to in item 13 of Annex No. 3 to the Act in the wording applicable before the date of entry into force of the Act of 7 April 2022 on medical devices (Journal of Laws, item 974), the tax rate referred to in Art. 41 sec. 2 shall apply if, in accordance with: 1) Art. 120 sec. 4 of the regulation (EU) 2017/745 of the European Parliament and of the Council of 5 April 2017 on medical devices, amending Directive 2001/83/EC, Regulation (EC) No 178/2002 and Regulation (EC) No 1223/2009 and repealing Council Directives 90/385/EEC and 93/42/EEC (Official Journal of the European Union L117 of 5 April 2017) or 2) Article 110 paragraph 4 of the regulation (EU) 2017/746 of the European Parliament and of the Council of 5 April 2017 on in vitro diagnostic medical devices and repealing Directive 98/79/EC and Commission Decision 2010/227/EU (Official Journal of the European Union L117 of 5 April 2017) – these products have been placed on the market and are still being made available on the market or put into use.
8%V999Other
23%1
Binding Tariff Information
example
ROgold5/004868
Steel heating manifold for boilers
carbon steelGRI 1GRI 6
BTI (Binding Tariff Information) is an official EU customs decision confirming the classification of goods. Valid for 3 years, binding across all EU member states.
Classification of auxiliary equipment for boilers (8404 10)
Subheading 8404 10 of the Combined Nomenclature covers auxiliary equipment for use with steam boilers of heading 8402 or central heating boilers of heading 8403. This subheading classifies economisers (feedwater heaters), superheaters, air preheaters, slag removers, deaerators, flue gas heat recovery systems, and flue gas dust removal equipment. The key classification criterion is the equipment's intended use: it must be designed as auxiliary equipment working in conjunction with a boiler, not as a standalone machine. An economiser heats boiler feedwater using flue gas heat, improving the energy efficiency of the installation. A superheater raises steam temperature above saturation temperature. Classification follows GRI rules 1 and 6 and the Notes to Chapter 84. Parts of auxiliary equipment are classified under subheading 8404 90.
PED and regulatory requirements for boiler auxiliary equipment
Auxiliary equipment for boilers under subheading 8404 10 may be subject to PED 2014/68/EU if operating at pressures exceeding 0.5 bar. Economisers and superheaters as pressure equipment are subject to PED conformity assessment in a category dependent on pressure and volume. Harmonised standards EN 12952 (water-tube boilers) and EN 12953 (shell boilers) also cover requirements for economisers and superheaters. CE marking is required for equipment subject to PED. Flue gas dust removal systems may be subject to IED 2010/75/EU regarding cleaning efficiency. Import requires an EORI number, customs declaration with code 8404 10, EU declaration of conformity, and technical documentation. The Machinery Regulation (EU) 2023/1230 applies to mechanical equipment (slag removers, feeders). ATEX Directive 2014/34/EU may apply to equipment operating in dust explosion hazard zones.
Customs duties and trade in auxiliary equipment (8404 10)
MFN duty rates for boiler auxiliary equipment under subheading 8404 10 should be verified in the European Commission's TARIC database. Economisers, superheaters, and heat recovery systems are specialist equipment manufactured by engineering firms from Germany, Finland, Denmark, Japan, and China. Preferential tariff rates may be available under FTA agreements subject to compliance with rules of origin. Chapter 84 products are not subject to the CBAM mechanism. The customs value includes the cost of equipment, fittings, automation, and technical documentation. Import of dust removal systems must account for compliance with IED directive requirements. Installation costs are excluded from the customs value if separately itemised. Import VAT is charged at the national rate. Current rates and trade measures should be verified in TARIC.
Frequently asked questions
What equipment is classified as boiler auxiliary equipment under 8404 10?
Subheading 8404 10 covers auxiliary equipment used with boilers: economisers (feedwater heaters), superheaters, air preheaters, slag removers, deaerators, flue gas heat recovery systems, and dust removal equipment. The condition is intended use in conjunction with boilers under heading 8402 or 8403. Standalone general-purpose heat exchangers are classified under heading 8419, and fans and blowers under heading 8414.
Is a boiler economiser subject to the PED directive?
Yes. An economiser (boiler feedwater heater) operating at pressure above 0.5 bar is subject to PED 2014/68/EU as pressure equipment. The PED risk category depends on operating pressure and volume. Economisers for large industrial boilers typically qualify for PED category III or IV. Standard EN 12952 covers requirements for economisers within water-tube boiler assemblies. CE marking is mandatory. Material certificates per EN 10204 are required.
What is the difference between subheading 8404 10 and 8404 90?
Subheading 8404 10 covers complete auxiliary equipment for boilers (economisers, superheaters, slag removers), while subheading 8404 90 covers parts of such equipment and condensers for steam engines. Classification depends on whether the imported goods are a complete piece of equipment (8404 10) or a spare part for auxiliary equipment (8404 90). Note 2(b) to Section XVI governs the classification of parts.
Useful tools & resources
Customs calculators
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Related glossary terms