HS 841090 Parts, including regulators
Quick Answer: Parts, including regulators, for hydraulic turbines, water wheels, and parts thereof, imported under HS 841090, enter the UK duty-free, the EU at 4.50% ad valorem, and the US at 3.8% ad valorem (MFN). This classification specifically covers components and regulating mechanisms designed for machinery that converts water energy into mechanical power. Importers should be aware of the varying tariff rates across major trading blocs, impacting landed costs. CustomTariffs aggregates this data, highlighting the importance of precise classification for accurate duty calculation and compliance.
What Are the Import Duty Rates?
🇬🇧 United Kingdom
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 8410900000 | 0.00 % | — | — |
| 8410901000 | 0.00 % | — | — |
| 8410902000 | 0.00 % | — | — |
| 8410909000 | 0.00 % | — | — |
🇪🇺 European Union (TARIC)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 8410900000 | 4.50 % | — | — |
| 8410901000 | 4.50 % | — | — |
| 8410902000 | 4.50 % | — | — |
| 8410909000 | 4.50 % | — | — |
🇺🇸 United States (HTSUS)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 8410900000 | 3.8% | Free (17 programs) | ["kg"] |
Special rates available under trade agreements including USMCA, KORUS, GSP.
Duty rates sourced from the USITC (US International Trade Commission) Harmonized Tariff Schedule (HTS) (accessed 2/22/2026), EU TARIC – DG TAXUD (Directorate-General for Taxation and Customs Union) (accessed 2/22/2026), and UK Trade Tariff – HMRC (His Majesty's Revenue and Customs) (accessed 2/22/2026).
Data compiled and presented by HSRates.
Which Trade Agreements Reduce Duties for HS 8410.90?
Imports of Parts, including regulators may qualify for reduced or zero duty rates under free trade agreements and preferential programs. The overview below shows available preferential arrangements by jurisdiction, compiled by HSRates from official tariff and trade agreement data.
United States (HTSUS)
Free for USMCA, KORUS, GSP, and 14 other programs
European Union (TARIC)
Preferential rate data not yet available.
United Kingdom
Preferential rate data not yet available.
Preferential rates require proof of origin and may be subject to quotas or conditions. Always verify eligibility with a licensed customs broker.
Data compiled by HSRates.
Which Preferential Rates Apply to Your Origin Country?
Select an origin country to see if preferential rates apply.
Preferential rates based on available trade agreements. Actual rates may vary.
How Has Trade Volume Developed?
Trade Volume 2023
How to Classify This HS Code?
What products does HS 841090 cover?
This subheading covers parts, including regulators, specifically designed for hydraulic turbines and water wheels of heading 8410. According to the World Customs Organization's Harmonized System Nomenclature, this includes components such as impellers, guide vanes, shafts, bearings, and control mechanisms that are integral to the functioning of these machines. Official definitions from sources like the USITC Harmonized Tariff Schedule (HTS) and the EU's TARIC database confirm that this classification applies to items exclusively intended for use with the turbines and wheels described in heading 8410, ensuring proper operational performance and regulation.
What falls outside HS 841090?
The following products are excluded from HS 841090: general-purpose machine parts not specifically designed for hydraulic turbines or water wheels, such as standard bolts, nuts, or generic bearings that could be used in a wide range of machinery. Additionally, complete hydraulic turbines and water wheels themselves are classified under heading 8410, not as parts. Electrical components or control systems that are not integral to the mechanical operation of the turbine, and are instead part of a separate electrical generation system, would also be classified elsewhere, often in Chapter 85.
What are common classification mistakes for HS 841090?
A common error is misclassifying general-purpose mechanical components as parts of hydraulic turbines when they are not specifically designed for such use. This often arises from a lack of detailed product specifications or a misunderstanding of the scope of heading 8410. For instance, a standard industrial pump impeller might be mistakenly classified here if it's not explicitly stated to be for a hydraulic turbine. Adherence to General Interpretative Rule 1, which states that classification shall be determined according to the terms of the headings and any relative Section or Chapter Notes, is crucial.
How should importers classify products under HS 841090?
The correct procedure for classifying products under HS 841090 involves a thorough examination of the product's design, function, and intended use. Importers and customs brokers must consult the official tariff schedule of the importing country, such as the USITC HTS or the UK Trade Tariff, and cross-reference with the WCO HS Explanatory Notes. It is essential to verify that the part is exclusively intended for use with hydraulic turbines or water wheels of heading 8410. Obtaining detailed technical specifications and manufacturer declarations is highly recommended to support the classification decision.
How is the duty calculated for products under HS 841090?
A specific stainless steel impeller for a Francis turbine, weighing 500 kg and declared at a customs value of $15,000 USD, would attract a US duty of $1,500.00. This is calculated using the Most Favored Nation (MFN) duty rate of 10% ad valorem, as published in the USITC Harmonized Tariff Schedule (HTS) for subheading 8410.90.90 (parts for hydraulic turbines and water wheels). The calculation is: 10% of $15,000 USD = $1,500.00. This rate applies if no preferential trade agreement is claimed.
Which trade agreements reduce duties for HS 841090?
Several free trade agreements may reduce the applicable duty rate for HS 841090, including the United States-Mexico-Canada Agreement (USMCA). Under USMCA, qualifying parts originating from Canada or Mexico can enter the United States duty-free. For example, a qualifying Canadian-made turbine regulator would have a preferential rate of Free. To claim this preference, a self-certified origin statement on the commercial invoice or a separate certificate of origin is typically required, depending on the specific circumstances and value of the goods, as outlined by US Customs and Border Protection (CBP).
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FAQ
What are the typical import duty rates for HS code 841090, covering parts for hydraulic turbines and water wheels?
Import duty rates for HS code 841090, which covers parts for hydraulic turbines and water wheels, vary significantly by country. For example, under the US Harmonized Tariff Schedule (HTS), the Most Favored Nation (MFN) duty rate is 3.8%. However, preferential rates under various Free Trade Agreements (FTAs) can be lower, including Free. The EU TARIC system and the UK Trade Tariff also list specific rates, often ranging from 0.00% to 4.50% ad valorem, depending on the origin of the goods and applicable trade agreements. Always consult the specific tariff schedule of the importing country for the definitive rate.
How is the import duty for HS code 841090 calculated, and can you provide an example?
The duty calculation for HS code 841090 is typically based on an ad valorem rate, meaning a percentage of the declared value of the imported goods. For instance, if a part for a hydraulic turbine is valued at $10,000 USD and the applicable MFN duty rate is 3.8% (as in the US), the import duty would be calculated as: $10,000 (value) × 0.038 (duty rate) = $380. Some countries may also apply specific duties (per unit) or a combination of ad valorem and specific duties, depending on the exact classification and national tariff laws. Always confirm the basis of duty calculation with the importing country's customs authority.
What specific criteria determine if a part falls under HS code 841090?
HS code 841090 covers 'Parts, including regulators' specifically for hydraulic turbines and water wheels, as defined in heading 8410. This means the parts must be designed to be incorporated into or used with hydraulic turbines or water wheels. Examples include guide vanes, wicket gates, runner blades, shafts, seals, and control mechanisms (regulators) that are integral to the operation of these machines. Parts that are generic and could be used in multiple types of machinery, or parts for other types of turbines (e.g., steam or gas turbines), would not be classified under this heading. The World Customs Organization (WCO) Explanatory Notes to Chapter 84 provide further guidance on the scope of heading 8410.
Which common trade agreements offer preferential duty rates for HS code 841090, and what documentation is typically required?
Many trade agreements can provide preferential duty rates for HS code 841090. For example, agreements like the USMCA (United States-Mexico-Canada Agreement), CPTPP (Comprehensive and Progressive Agreement for Trans-Pacific Partnership), and various EU bilateral agreements often grant reduced or zero duty rates for goods originating from member countries. To claim these preferential rates, importers or their customs brokers must typically provide a Certificate of Origin (COO) or a declaration of origin issued by the exporter, demonstrating that the goods meet the rules of origin stipulated in the specific trade agreement. Consult the relevant trade agreement text and the importing country's customs regulations for precise documentation requirements.
Are there any specific documentation requirements beyond a commercial invoice and bill of lading for importing parts under HS code 841090?
While a commercial invoice, packing list, and bill of lading are standard import documents, additional requirements for HS code 841090 may apply depending on the importing country and the nature of the goods. If claiming preferential duty rates under a Free Trade Agreement, a valid Certificate of Origin is crucial. Some countries may also require technical specifications or manufacturer's declarations to confirm that the parts are indeed intended for hydraulic turbines or water wheels, especially if there's ambiguity in classification. It is advisable for importers and customs brokers to consult the importing country's customs authority or a licensed customs broker for a comprehensive list of required documentation to ensure smooth clearance.