This directory combines historical reference rows with separately labelled national sources. Read the source title, observation date, printed units and conditions on each entry. National source observations do not establish all measures applicable to a shipment.

United States Customs Tariff for HS Code 251720

Macadam of slag, dross or similar industrial waste; whether or not incorporating the materials in Tariff item 2517.10.00

USITC 2026 HTS Revision 19

26,806 official source entries are searchable. Checked 2026-09-22; edition published 2026-09-15.

Printed tariff and statistical lines from this edition, separate from historical WITS averages. Blank duty cells are not a confirmed zero. Review the parent tariff line, general and chapter notes, chapter 99, origin, exclusions, quotas and additional duties. No shipment total or special-rate eligibility is calculated. The edition publication date is not a line-level effective date.

Official schedule and source documentation

Official entries matching 251720

2517.20.00.00

Pebbles, gravel, broken or crushed stone, of a kind commonly used for concrete aggregates, for road metalling, or for railway or other ballast; shingle and flint, whether or not heat-treated; macadam of slag, dross or similar industrial waste, whether or not incorporating the materials cited in the first part of the heading; tarred macadam; granules, chippings and powder, of stones of heading 2515 or 2516, whether or not heat-treated:

Macadam of slag, dross or similar industrial waste, whether or not incorporating the materials cited in subheading 2517.10

Source units: t

Column 1 — General: Free
Column 1 — Special (eligibility required): No amount printed on this row; not a confirmed zero.
Column 2: 30%

Official source for this code

WITS 2023 historical MFN average

Reported average: 0%.

Source year: 2023. Classification: HS 2022 (H6). Checked 2026-09-14.

National lines included: 1 of 1. Excluded from the average: 0.

Reported ad-valorem range: 0%–0%.

Reported historical ad-valorem MFN simple average for 2023, not a national tariff schedule. No preferential rates, additional duties, VAT, excise or import permissions are determined.

Not a current 2026 national duty. The HS6 average does not determine the duty of a particular national subdivision, origin or shipment.

WITS observation for this code and year

UN Comtrade H6 descriptions (HS 2022)

WITS API definitions: reported averages and excluded national lines

Direct HS code answer for United States

United States HS Code 251720: 0.00% (2023 MFN average)

The source reports an indicative HS6 MFN average of 0.00% (2023 MFN average) for Macadam of slag, dross or similar industrial waste; whether or not incorporating the materials in Tariff item 2517.10.00.Source status: not assessed. Verify the exact national tariff line, origin treatment, taxes, restrictions, and current customs guidance before using this information in a declaration.

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Customs tariff summary

Country: United States
HS / tariff code: 251720
Description: Macadam of slag, dross or similar industrial waste; whether or not incorporating the materials in Tariff item 2517.10.00
Chapter: 25 —
Heading: 2517
Subheading: 251720
Indicative MFN HS6 average: 0.00% (2023 MFN average)
VAT / tax: Check local VAT and excise rules for the import destination.
Unit / basis: Not listed in this tariff line
Source / vintage: WITS / UNCTAD TRAINS — 2023 MFN HS6 reference

Historical MFN average

0.00% (2023 MFN average)

Import permission

not assessed

Import planning

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Details

HS Code: 251720
Chapter: 25 —
Heading: 2517
Subheading: 251720

Compare HS code 251720 across GCC countries

Each destination shows its own source label. Oman uses its national schedule; Qatar and UAE entries may cite their separately published references and unresolved exceptions. Other entries retain the historical GCC reference. National codes, duty notes, restrictions and tax treatment can differ; verify with the destination customs authority.

Saudi ArabiaSearch parent HS 251720 United Arab EmiratesSearch parent HS 251720 OmanSearch parent HS 251720 QatarSearch parent HS 251720 KuwaitSearch parent HS 251720 BahrainSearch parent HS 251720

Related HS Codes (Heading 2517)

HS Code	Description	Duty
251710	Pebbles, gravel, broken or crushed stone; of a kind commonly used for concrete aggregates, for road metalling or for railway or other ballast, shingle and flint, whether or not heat-treated	0.00% (2023 MFN average)WITS 2023 historical MFN average
251730	Tarred macadam	0.00% (2023 MFN average)WITS 2023 historical MFN average
251741	Stones; of marble, in granules, chippings and powder, whether or not heat-treated	0.00% (2023 MFN average)WITS 2023 historical MFN average
251749	Stones; of heading no. 2515 or 2516 (excluding marble), in granules, chippings and powder, whether or not heat-treated	0.00% (2023 MFN average)WITS 2023 historical MFN average

Data source: WITS/UNCTAD TRAINS (MFN 2022). Values are indicative HS6 MFN averages, not shipment-specific applied rates. Import permission and restrictions are not assessed. Historical reference rates exclude VAT, excise and other national measures. Separate national entries preserve the columns printed by their source; these are not a complete shipment assessment. Full disclaimer.