Effective November 1, 2025, U.S. Customs and Border Protection (CBP) will implement new Section 232 tariffs on imports of medium- and heavy-duty vehicles (MHDVs), MHDV parts (MHDVPs), and buses, pursuant to Presidential Proclamation 10984.
Key Details
- Tariff Rates:
- 25% on most MHDVs and MHDVPs
- 10% on buses
- 0% on select entries including eligible USMCA items, vintage vehicles, and other exceptions (see below)
- Effective Date:
- Applies to goods entered or withdrawn for consumption on or after 12:01 a.m. EDT, November 1, 2025
HTSUS Classifications to Know
Medium- and Heavy-Duty Vehicles (MHDVs) & Buses
| HTSUS | Applies To | Duty Rate |
|---|---|---|
| 9903.74.01 | MHDVs (HTS 8701, 8704, 8705, 8706, 8709) | 25% |
| 9903.74.02 | Buses and vehicles under HTS 8702 | 10% |
| 9903.74.03 | Non-U.S. content of USMCA-eligible MHDVs | 25%* |
| 9903.74.05 | Non-MHDVs under same HTS headings | 0% |
| 9903.74.06 | U.S. content of USMCA-eligible MHDVs | 0% |
| 9903.74.07 | MHDVs & buses manufactured 25+ years ago | 0% |
*Awaiting further CBP guidance before filing entries under 9903.74.03 or 9903.74.06.
Medium- and Heavy-Duty Vehicle Parts (MHDVPs)
| HTSUS | Applies To | Duty Rate |
|---|---|---|
| 9903.74.08 | MHDVPs (see U.S. Note 38(i)) | 25% |
| 9903.74.09 | MHDVPs for U.S. production or repair (with certification) | 25% |
| 9903.74.10 | USMCA-eligible MHDVPs (excluding knock-down kits) | 0% |
| 9903.74.11 | Non-MHDVPs in similar categories | 0% |
Passenger Vehicle & Light Truck Parts (Automobiles)
- Apply 25% tariff under 9903.94.07, unless specific conditions and country of origin apply.
- Country-specific HTSUS for auto parts may allow lower tariffs or exemptions:
- EU: 9903.94.44 / .45
- Japan: 9903.94.54 / .55
- UK: 9903.94.33
Certification required for U.S. use in production or repair
Do not apply if parts fall under HTS 9903.94.05, .42, .52, .53, or .32
Foreign Trade Zones (FTZs)
- All MHDVs, MHDVPs, and buses admitted on or after Nov 1 must be under privileged foreign status.
- FTZ entries are subject to the applicable ad valorem tariff upon withdrawal for consumption.
Drawback Eligibility
- Only Direct Identification (1313(a)) and Substitution Manufacturing (1313(b)) drawback claims apply.
- Eligible for headings including 9903.74.08, 9903.74.09, 9903.94.07, .33, .45, .55, and others.
What’s Not Subject to These Tariffs
MHDVs and MHDVPs (including USMCA-eligible parts under 9903.74.10) are NOT subject to:
- Section 232 steel/aluminum duties
- Copper or wood product tariffs
- Certain reciprocal/IEEPA duties
Important: Automobiles under 9903.94.40 and .50, and parts under .06, .42, .44, .52, .54, and MHDVPs under 9903.74.10, are not subject to additional Section 232 duties under EO 14289.
Filing Reminders
- Use proper Chapter 99 HTS codes in ACE per CSMS #64018403.
- Always file primary HTS (Ch. 1–97) with a duty of $0 when claiming duties under Chapter 99.
- Certify use when claiming exceptions based on production or repair activity.
- Consult your CBP Client Representative or ACE Help Desk for technical issues.
Need Help?
Buckland is here to support your classification, filing, and compliance needs. Contact your representative or email us directly at clientsupportus@buckland.com.
Resources:
List of MHDV, MHDVP and buses HTSUS subject to Section 232 remedy.
CSMS # 66665333 – GUIDANCE: Import Duties on Medium- and Heavy-duty Trucks, Medium- and Heavy-duty Truck Parts and Buses