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SITCSection 7
U.S. imports of public-transport passenger vehicles with diesel or semi-diesel engines (SITC 78311) totaled $86.8M in April 2026, traded with 6 countries.
Importers of Public-Transport Passenger Vehicles with Diesel or Semi-Diesel Engines paid $7.5M in duties in April 2026 — an effective duty rate of 10% on $74.1M in dutiable value, based on actual customs collections rather than the published tariff schedule. Public-Transport Passenger Vehicles with Diesel or Semi-Diesel Engines imports of $86.8M in April 2026 ran 12% above the year-to-date monthly average of $77.4M.
Last updated: April 2026 dataDiesel and semi-diesel powered buses and coaches designed for public passenger transport represent a specialized segment of the commercial vehicle market, procured primarily by transit authorities and intercity operators. Compression-ignition engine type is the defining classification criterion here, distinguishing these vehicles from spark-ignition or alternatively powered public-transport vehicles. Importers should be aware that large diesel buses may be subject to EPA emissions certification requirements before entry, and Section 232 or Section 301 measures may apply depending on origin.
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Imported diesel buses must comply with EPA emissions standards for heavy-duty engines. The importer must demonstrate conformity with applicable emission standards — typically through an EPA-approved certificate of conformity or an exemption — before CBP will release the vehicle. Non-conforming vehicles may require modification or face refusal of entry.
Engine type is the primary split within public-transport passenger vehicles at this SITC level. Compression-ignition (diesel or semi-diesel) engines place the vehicle in heading 78311, while buses powered by spark-ignition engines or alternative powertrains fall into the residual heading 78319. Confirming the engine specification in the manufacturer's documentation is essential for accurate classification.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| CANADA | $78.7M | $52.8M | -$25.8M |
| MEXICO | $3.8M | $3.5M | -$285K |
| TURKEY | $4.3M | -- | -$4.3M |
| EL SALVADOR | -- | $272K | +$272K |
| GUATEMALA | -- | $187K | +$187K |
Monthly import values over time