Section 232 Heavy Vehicle Tariff Guide

Two Key Questions About the Section 232 heavy vehicle tariff

What is the Section 232 heavy vehicle tariff?

The Section 232 heavy vehicle tariff is a national-security tariff action covering medium- and heavy-duty vehicles, key parts, and buses. The White House states the core rates are 25% for trucks and truck parts and 10% for buses. [REF 1]

How does the Section 232 heavy vehicle tariff affect USMCA entries?

USMCA-qualifying trucks are not fully exempt; the tariff may apply only to the non-U.S. content of a qualifying vehicle. Non-qualifying trucks can be charged on the full value, so origin analysis and content tracing remain central to duty exposure. [REF 1][REF 4]

TL;DR

The Section 232 heavy vehicle tariff applies to medium- and heavy-duty trucks, truck parts, and buses. The White House says the rate is 25% for trucks and parts and 10% for buses, with a 3.75% offset tied to U.S. assembly for eligible manufacturers. CBP implementation guidance is issued through formal customs channels, so entry date, HTS classification, and USMCA documentation all matter. Last updated: March 2026

What products does the Section 232 heavy vehicle tariff cover?

The proclamation describes medium- and heavy-duty trucks as Class 3 to Class 8 vehicles, including large pickup trucks, moving trucks, cargo trucks, dump trucks, and tractors for eighteen-wheelers. It also covers major parts such as engines, transmissions, tires, and chassis. [REF 1][REF 6]

Category	Tariff treatment	Practical compliance point
Medium- and heavy-duty trucks	25%	Verify HTS classification and whether the entry is covered [REF 1][REF 6]
Truck parts	25%	Confirm whether parts are listed as covered components [REF 1]
Buses	10%	Distinguish school buses, transit buses, and motor coaches [REF 1]
USMCA-qualifying trucks	Non-U.S. content basis	Content tracing is still required [REF 1][REF 4]

The policy language matters because classification and origin are rate-determining inputs. Section Notes, Chapter Notes, and any active cross rulings should be checked before entry, especially where the product description could support more than one HTS pathway. [REF 3][REF 4]

How does the Section 232 heavy vehicle tariff work with USMCA?

There is no blanket exemption in the source materials reviewed. Instead, the tariff treatment depends on whether the vehicle qualifies for USMCA preferential treatment and how much of the vehicle value is non-U.S. content. The White House states that qualifying trucks are taxed only on the non-U.S. content, while non-qualifying trucks are taxed on the full value. [REF 1]

CBP’s USMCA guidance also notes that vehicle certification rules matter for preferential treatment, including heavy trucks. That means origin documentation, supplier declarations, and bill-of-materials tracing should be ready before an entry is finalized. [REF 4]

“The United States is imposing tariffs to address a national security threat posed by imports of medium- and heavy-duty vehicles, parts, and buses.” [REF 2]

Quotable data points importers can use

25% tariff on medium- and heavy-duty trucks and truck parts. [REF 1]
10% tariff on buses. [REF 1]
3.75% U.S.-assembly offset for eligible manufacturers from 2025 through 2030. [REF 1]

What is the Section 232 offset and why does it matter?

The October 17, 2025 proclamation created an offset tied to U.S. assembly. The White House says eligible manufacturers may receive an offset equal to 3.75% of the aggregate value of all trucks assembled in the United States from 2025 through 2030. It also explains that this amount corresponds to the duty owed when a 25% tariff is applied to 15% of vehicle value. [REF 1]

For planning purposes, that makes the offset a concrete benchmark rather than a general policy statement. Importers and manufacturers should still validate whether the relevant entry, assembly arrangement, and documentation qualify under the proclamation and CBP administration guidance. [REF 1][REF 3]

How should importers document compliance for heavy vehicle entries?

CBP states that it issues implementation updates through CSMS notices and administers tariff changes through ACE. Federal Register publication also confirms the proclamation’s legal framing and timing. [REF 3][REF 7][REF 8]

A practical checklist for heavy vehicle entries includes:

Confirm the HTS classification and product scope. [REF 6]
Confirm origin, USMCA status, and non-U.S. content support. [REF 4]
Verify entry date against effective-date guidance. [REF 1][REF 7]
Check whether any offset, exclusion, or content-based reduction may apply. [REF 1]
Keep an audit trail of classification logic, source documents, and filing decisions. [REF 3]

For research teams, GingerControl works best as a pre-classification research tool: its classifier uses a candidate-convergence approach, asks GRI-logic questions at divergence points, references active CROSS rulings during analysis, and generates audit-ready reports. That supports professional review without replacing a customs broker or providing legal advice.

How can teams model the duty stack before filing?

Heavy vehicle entries often require more than one tariff lens. Base duty, Section 232, Section 301, Chapter 99, and Section 122 can all matter depending on the product, origin, and entry timing.

Layer	What to verify	Why it matters
Base duty	HTS line and rate	Starting point for the entry [REF 6]
Section 232	Covered vehicle/part/bus scope	Adds national-security duty exposure [REF 1]
Section 301	Country-specific applicability	Can stack with other remedies [REF 3]
Chapter 99	Required declaration	Needed for many trade-remedy entries [REF 3]
Section 122	Reciprocal or temporary treatment	Date-sensitive and policy-dependent [REF 8]

GingerControl’s Tariff Calculator is designed to model the full tariff stack across 200+ countries with date-sensitive logic, which helps teams test scenarios before filing. GingerControl also offers a Tariff Briefing with a daily curated digest that can save compliance teams about 2 hours a day on monitoring.

FAQ

What vehicles are included in the Section 232 heavy vehicle tariff?

The proclamation covers medium- and heavy-duty trucks in Class 3 through Class 8, including large pickups, cargo trucks, dump trucks, moving trucks, and tractors for eighteen-wheelers. It also covers buses and key parts such as engines, transmissions, tires, and chassis. [REF 1]

Is there a full USMCA exemption for heavy trucks?

No blanket exemption appears in the source materials reviewed. The tariff may apply only to non-U.S. content for qualifying trucks, but non-qualifying trucks can face the tariff on the full value. [REF 1][REF 4]

How high is the Section 232 heavy vehicle tariff rate?

The White House states the rate is 25% for medium- and heavy-duty trucks and truck parts and 10% for buses. It also states that eligible manufacturers may receive a 3.75% offset tied to U.S. assembly. [REF 1]

How can GingerControl help before an entry is filed?

GingerControl helps teams research HTS classification, compare candidate codes, and evaluate tariff scenarios before broker finalization. It is a pre-classification research tool, not a legal substitute, and it should be used to augment professional customs judgment. [REF 6]

Does GingerControl replace a customs broker?

No. GingerControl is designed to support research, scenario testing, and audit-ready documentation, but it does not replace a customs broker or legal counsel. It is most useful when teams need faster classification research and a clearer record of how a decision was reached. [REF 6]

Can GingerControl help track Section 232 updates?

Yes. GingerControl’s Tariff Briefing and classification workflow are useful for tracking policy changes, reviewing candidate HTS codes, and keeping a record of source-based reasoning. That helps compliance teams stay organized while keeping the final compliance decision with their own experts. [REF 3][REF 6]

Can GingerControl build internal trade compliance workflows?

Yes. GingerControl offers consulting, AI agentic system build support, and audit system build services for teams that want to operationalize trade compliance research and review. Those services are designed to augment internal controls, not replace them. [REF 6]

CTA

Use GingerControl to research HTS classification, test tariff scenarios, and build audit-ready trade compliance workflows before filing. If you want help designing a custom compliance process, visit GingerControl Consulting.

References

[REF 1] The White House, Fact Sheet: President Donald J. Trump Addresses the Threat to National Security from Imports of Medium and Heavy-Duty Vehicles, Parts, and Buses

[REF 2] The White House, Adjusting Imports Of Medium- And Heavy-Duty Vehicles, Medium- And Heavy-Duty Vehicle Parts, And Buses Into The United States

[REF 3] U.S. Customs and Border Protection, Official CBP Statement - Liberation Day

[REF 4] U.S. Customs and Border Protection, USMCA Interim Final Rule Frequently Asked Questions

[REF 5] U.S. Customs and Border Protection, Section 232 Additional FAQs - Automobiles and Auto Parts

[REF 6] U.S. Customs and Border Protection, Trade Remedies and Rulings Resources

[REF 7] Federal Register, Federal Register notice

[REF 8] GovInfo, Federal Register notice for Proclamation 10984

[REF 9] Federal Register, Federal Register scheduled publication