HS 251720 Macadam of slag, dross or similar industrial waste, whether or not incorporating the materials cited in subheading 2517 10
Quick Answer: HS Code 251720 covers "macadam" derived from industrial waste materials like slag, dross, or similar by-products. This includes crushed, graded aggregate used primarily in road construction and civil engineering, whether or not mixed with natural stone, gravel, or shingle (as referenced in 251710). For importers and customs brokers, duty rates vary significantly: the UK and EU apply a 0.00% ad valorem duty. In contrast, the US imposes a 30% ad valorem duty, though a "Free" rate may apply under specific trade programs or provisions. Importers should verify eligibility for preferential treatment in the US to potentially avoid the 30% rate, while all parties must ensure accurate classification to prevent compliance issues.
What Are the Import Duty Rates?
🇬🇧 United Kingdom
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2517200000 | 0.00 % | — | — |
🇪🇺 European Union (TARIC)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2517200000 | 0.00 % | — | — |
🇺🇸 United States (HTSUS)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 2517200000 | Free | — | ["t"] |
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.
How to Classify This HS Code?
What products does HS 251720 cover?
This subheading covers macadam produced from industrial waste materials such as slag, dross, or other similar by-products. The WCO Harmonized System Explanatory Notes for Heading 2517 clarify that "macadam" refers to crushed, broken, or ground stone or other hard materials used for road-making, railway ballast, or similar construction purposes. Specifically, 251720 encompasses these waste-derived materials, whether or not they are mixed with natural aggregates like pebbles, gravel, broken or crushed stone, or shingle, which are covered under subheading 251710. The USITC Harmonized Tariff Schedule and EU TARIC definitions align with this scope, emphasizing the origin from industrial waste.
What falls outside HS 251720?
The following products are excluded from HS 251720: macadam composed solely of natural aggregates such as pebbles, gravel, broken or crushed stone, or shingle, which are classified under subheading 251710. Furthermore, uncrushed slag or dross, even if intended for eventual use in macadam, would not fall here; they would typically be classified under other headings depending on their composition and form, such as Heading 2618 for granulated slag (slag sand) from the manufacture of iron or steel. Similarly, asphaltic mixtures (macadam premixed with bitumen) are excluded, as they are classified under Heading 2715, representing a more processed product.
What are common classification mistakes for HS 251720?
A common error is misclassifying macadam made from a blend of industrial waste and natural aggregates. Importers sometimes incorrectly classify such mixtures under 251710 if the natural aggregate component is significant, overlooking the specific inclusion of "whether or not incorporating the materials cited in subheading 251710" within 251720. Another mistake involves classifying unprocessed slag or dross as macadam, failing to recognize that "macadam" implies a crushed and prepared state suitable for construction. Proper application of General Interpretative Rule (GRI) 1, which states that classification is determined according to the terms of the headings and any relative section or chapter notes, is crucial here.
How should importers classify products under HS 251720?
The correct procedure for classifying products under HS 251720 involves first identifying the primary material composition. Importers and customs brokers must ascertain if the macadam is derived from industrial waste (slag, dross, or similar). If so, even if it contains natural aggregates, it should be classified under 251720. It is essential to obtain detailed material specifications from the supplier, including the percentage and type of industrial waste and any natural aggregates. Consulting the WCO Explanatory Notes for Heading 2517 is highly recommended to confirm the definition of "macadam" and the scope of industrial waste materials. Maintaining clear documentation supporting the material's origin and processing is vital for compliance.
Which HS Codes Are Related?
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FAQ
What is the import duty rate for HS code 2517.20 (Macadam of slag, dross or similar industrial waste) in key markets?
The Most Favored Nation (MFN) duty rates for HS code 2517.20 can vary significantly by importing country. For example, the United States generally applies a duty rate of 'Free' (0.00% ad valorem) for goods classified under HTSUS 2517.20.00. The European Union's TARIC database also indicates a '0.00%' duty rate for imports of this product. However, some countries may apply higher rates; for instance, certain developing nations or specific trade agreements might have different tariffs, potentially up to 30% or more in some non-preferential scenarios. Importers should always verify the specific duty rate applicable to their destination country using the official customs tariff database (e.g., USITC HTSUS, EU TARIC, UK Trade Tariff) for the most accurate and up-to-date information.
What are the key classification criteria for products under HS 2517.20, distinguishing it from other macadam or aggregate codes?
HS code 2517.20 specifically covers 'Macadam of slag, dross or similar industrial waste, whether or not incorporating the materials cited in subheading 2517.10.' The critical classification criterion is the origin of the material: it must be derived from industrial waste products such as slag (a glassy by-product of smelting ore) or dross (impurities that float on molten metal). This distinguishes it from macadam made of natural stone (classified under HS 2517.10) or other types of aggregates. The 'whether or not incorporating the materials cited in subheading 2517.10' clause means that a mixture of industrial waste macadam with natural stone macadam would still fall under 2517.20, provided the industrial waste component is significant and defines the character of the product. The size and preparation (e.g., crushed, broken, or ground) are also relevant but secondary to the material's origin.
Are there any common trade agreements that offer preferential duty rates for HS 2517.20?
Yes, preferential duty rates for HS 2517.20 are often available under various free trade agreements (FTAs) or preferential trade programs, although the MFN rate is frequently already 'Free' in many developed markets. For instance, if the MFN rate is 0.00%, there's no further preference to be gained. However, in countries where an MFN duty rate exists, agreements like the USMCA (United States-Mexico-Canada Agreement), EU FTAs with various partners, or the UK's trade agreements could provide duty-free or reduced-duty access, provided the goods meet the specific Rules of Origin (ROO) of the respective agreement. Importers should consult the origin provisions of the relevant trade agreement and ensure they have the necessary documentation (e.g., certificate of origin) to claim preferential treatment.
What specific documentation is typically required for importing goods classified under HS 2517.20?
Standard import documentation generally applies to HS 2517.20. This includes a commercial invoice, packing list, bill of lading or air waybill, and potentially a certificate of origin if preferential duty treatment is being claimed under a free trade agreement. Given the nature of the product as industrial waste, some countries may also require additional environmental or waste management declarations, material safety data sheets (MSDS), or compliance certificates to ensure the material meets local environmental standards and is not considered hazardous waste. Importers should verify specific requirements with the customs authority of the importing country, as these can vary based on national environmental regulations.