U.S. imports of Tarred Macadam (HS 251730) totaled $72K in August 2026, imported from 2 countries.
Importers of Tarred Macadam paid $291 in duties in August 2026, an average duty rate of 0.41% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataTarred macadam is a road-paving aggregate in which crushed stone is pre-coated or mixed with tar binders, classifying under a single US tariff line (2517300000). Its primary commercial role is in highway and infrastructure construction, where it competes with asphalt concrete mixes. Canada dominates US import supply given cross-border infrastructure project logistics, with the United Kingdom a secondary source. Importers should confirm the tar-binder composition, as products using bitumen rather than coal tar may be reclassified under a different heading.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
11 import shipments a month
Tarred macadam (HTS 2517300000) consists of stone aggregate pre-coated or mixed specifically with tar (coal-tar derived binders). Products bound with bitumen (petroleum-derived) are generally classified elsewhere in Chapter 27 or Chapter 68, so the binder type is the critical classification determinant. Consult a licensed customs broker if the binder composition is ambiguous.
Importers from Canada should provide a commercial invoice specifying the aggregate type, binder composition, and country of origin to support USMCA origin claims. A certificate of origin and any applicable safety data sheets for the tar component are standard supporting documents.
Subheading 5 of 5 in heading 2517
Subheading 251730 · $72K of $28.8M
ImportsExports
Imports
$72KYoY · free account
Exports
$52KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $800K of Tarred Macadam and exported $1.2M.
Fewer than 6 of the last 12 months reported trade, or the latest month was under $500K; the trend chart is not shown for thin series.
Through August 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2517300000 | Tarred Macadam | $72K | 0.41% | 4.06% | $291 |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2517300000 | Tarred Macadam | $52K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Trade Directory
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Imports · August 2026
origin
Canada and United Kingdom together supply 100% of it.
customs district
destination
entry
rate provision · imports
95.9% enters free of duty; duty collected equals 0.41% of imports for consumption.