TARIFF TRACKER
Imposes Section 232 tariffs on medium and heavy trucks, parts, and buses
This proclamation imposes new Section 232 duties on imported medium and heavy-duty vehicles, covered parts, and buses starting November 1, 2025. It also creates USMCA content treatment and offset programs for qualifying U.S.-assembled vehicles and engines.
Updated October 12, 2026
STATUS
In effect
·
EFFECTIVE
·
Section 232
RATE
25% (buses 10%)
25% ad valorem on MHDVs and specified MHDVPs. 10% ad valorem on buses and other vehicles in HTSUS heading 8702.
COUNTRIES
All countries
PRODUCT FAMILIES
Trucks/parts, Autos/parts
HTS CHAPTERS
87
COVERED GOODS
Medium and heavy-duty vehicles, medium and heavy-duty vehicle parts specified in Annex I, and buses and other vehicles classified in HTSUS heading 8702. The Federal Register publishes the Annex I as images, so the HTS lines are not listed here; see the source.
EXCLUSIONS
The tariffs do not apply to MHDVs or buses in HTSUS heading 8702 manufactured at least 25 years before entry. USMCA-qualifying individual MHDVPs are not subject to the additional duty until Commerce and CBP establish a process for applying the tariff to non-U.S. content, but knock-down kits or equivalent parts compilations remain subject to duty. Certain U.S.-assembled MHDV and engine manufacturers may use import adjustment offsets, but knock-down kits or equivalent parts compilations are not eligible for offsets.
USMCA
For USMCA-qualifying MHDVs other than buses and heading 8702 vehicles, approved importers may apply the 25% duty only to non-U.S. content. USMCA-qualifying individual MHDVPs are not subject to the duty until a non-U.S. content process is established, except knock-down kits or equivalent parts compilations.
WHAT TO DO (OUR GUIDANCE, NOT LEGAL ADVICE)
Check truck, bus, and parts entries for MHDV coverage and HTSUS heading 8702 before November 1, 2025. For USMCA goods, prepare documentation for U.S. content and watch for the Federal Register notice establishing the MHDVP non-U.S. content process.
SOURCES
Proclamation 10984, 90 FR 48451 (October 22, 2025)
CSMS # 66665333 - GUIDANCE: Import Duties on Medium- and Heavy-duty Trucks, Medium- and Heavy-duty Truck Parts and Buses (October 29, 2025)
CSMS # 66684128 - GUIDANCE: Duty Offset for Imports of Automobile Parts (October 31, 2025)
CSMS # 66987366 - Guidance - Implementation of Tariff-Related Elements of the United States-Korea Strategic Trade and Investment Deal (December 3, 2025)
CSMS # 69087399 - GUIDANCE: Duty Offset for Imports of Automobile and Medium and Heavy-Duty Vehicle Parts (June 29, 2026)
QUOTES FROM THE SOURCE
Rate: "shall be subject to a 25 percent ad valorem duty rate, except for buses and other vehicles classified in HTSUS heading 8702, which shall be subject to a 10 percent ad valorem duty rate." (source)
Effective date: "These tariffs shall apply to goods entered for consumption or withdrawn from warehouse for consumption on or after 12:01 a.m. eastern daylight time on November 1, 2025" (source)
Signed: "IN WITNESS WHEREOF, I have hereunto set my hand this seventeenth day of October, in the year of our Lord two thousand twenty-five" (source)
Covered goods: "all imports of MHDVs and the MHDVPs specified in Annex I to this proclamation, or in any action designed to address the national security threat found in this proclamation" (source)
Covered goods: "except for buses and other vehicles classified in HTSUS heading 8702" (source)
Countries: "all imports of MHDVs and the MHDVPs specified in Annex I to this proclamation" (source)
Exclusions: "shall not apply to MHDVs or buses and other vehicles classified in HTSUS heading 8702 that were manufactured in a year at least 25 years prior to the date of entry" (source)
USMCA: "shall not be subject to the additional ad valorem duty rate imposed under this proclamation until such time that the Secretary, in consultation with the Commissioner of U.S. Customs and Border Protection (CBP), establishes a process" (source)
Checked against source
on
Proclamation 10984 (signed Oct 17, 2025) sets 25 percent on medium and heavy trucks and listed parts and 10 percent on buses in heading 8702 from Nov 1, 2025; CBP CSMS 68559236 (May 2026) and 69087399 (June 2026) still apply it.
Morsa reads your suppliers’ price-increase letters and POs in your inbox and flags the ones a tariff change touches. See how it works
