USMCA Compliance for OEMs: Tariff Strategy

USMCA sets the regional value content threshold for passenger vehicles and light trucks at 75%, calculated on net cost. Two more tests sit beside it, and they are measured differently: 70% of the producer's steel and aluminum purchases have to be North American, counted across the corporation rather than per vehicle, and 40 to 45% of the vehicle's value has to come from plants paying at least $16 an hour. Certified origin documentation stands behind all three. Miss any one and the vehicle does not qualify, however comfortable the other numbers look.

Clearing 75% is not the same as paying no duty. What certification actually buys you against the US Section 232 auto tariff is the part most coverage gets wrong, and it is the section after this one.

What Is USMCA Vehicle Compliance?

USMCA replaced NAFTA in July 2020 and introduced new origin requirements for automotive goods to qualify for duty-free trade within North America. Vehicles must meet strict content, material sourcing, and labor standards to be eligible.

Key Compliance Thresholds:

• 75% Regional Value Content (RVC): Required for passenger vehicles and light trucks.
• 70% North American steel and aluminum purchases: Measured across the producer's corporate purchasing, by value, not as a per-vehicle content share.
• 40-45% Labor Value Content (LVC): A share of the vehicle's value must come from plants paying workers $16/hour or more.
• Certified origin documentation must support all compliance claims.

These thresholds aim to encourage North American production and ensure fair labor and material standards across borders.

What USMCA Certification Actually Buys You

This is the part that is most often stated wrongly, including in a lot of trade coverage. Qualifying under USMCA does not exempt a vehicle from the US Section 232 auto tariff.

The Section 232 tariff on imported passenger vehicles has been 25% since 3 April 2025, and on covered automobile parts since 3 May 2025. For a vehicle from Canada or Mexico that qualifies for preferential treatment under USMCA, the US allows that 25% to be applied only to the value of the non-US content, rather than to the whole vehicle. That relief is not automatic. The importer has to file documentation that isolates the US content of each model, where US content means parts wholly obtained, produced entirely, or substantially transformed in the United States.

The enforcement clause is the one to plan around. If CBP concludes the non-US content of a qualifying model has been understated, the 25% is applied to the full value of that model, both prospectively and retroactively. A thin content file does not simply lose you the relief on the shipment in question. It reopens the ones already delivered.

Two other pieces of the picture, as at August 2026:

• US assemblers have an offset. Manufacturers assembling vehicles in the United States can claim an import adjustment offset against Section 232 duty on parts, calculated as a share of the aggregate MSRP of the vehicles they assemble. It was 3.75% for vehicles assembled between 3 April 2025 and 30 April 2026, and steps down to 2.5% for those assembled from 1 May 2026 to 30 April 2027.
• Other origins are on different rates. Vehicles from Japan and the EU sit at a preferential 15% under their framework agreements rather than the 25% headline. Origin is not a yes-or-no question, it decides which regime you are in.

A vehicle that misses the USMCA thresholds gets none of this. It carries 25% on the full customs value, whatever country it was assembled in.

Who Is Responsible for Compliance?

While OEMs are ultimately responsible, compliance under USMCA is a collaborative, multi-party process that includes:

• Tier 1, 2, and 3 suppliers providing materials and subcomponents
• Freight forwarders and LSPs managing transportation and documentation
• Customs brokers submitting claims to U.S. Customs and Border Protection (CBP)
• Trade compliance teams overseeing classification, audit readiness, and risk management

Every stakeholder must ensure that data, certifications, and sourcing inputs are accurate and traceable.

Key Compliance Documents and Processes

To secure preferential tariff treatment under USMCA, companies must prepare the following:

1. Certificate of Origin (COO)

• Must be issued by the exporter, producer, or importer
• Includes item descriptions, classification (HS) codes, and origin criteria used
• Can be provided electronically or in writing, but must be retained for at least five years

2. RVC Calculations

• Use either the net cost method or transaction value method to calculate regional content
• Must document the proportion of content sourced from North America for each component
• Requires verified supplier declarations

3. Labor Value Content (LVC) Documentation

• Includes hours worked and wages paid in qualifying facilities
• Should be audited periodically to ensure wage compliance

4. Steel and Aluminum Origin Declarations

• The producer certifies that at least 70% of its steel and aluminum purchases, by value across the corporation, are North American
• Supplier certifications feed that corporate figure, so the evidence trail runs through procurement rather than through any single vehicle's bill of materials
• These certificates must be validated by procurement or compliance personnel

Proper documentation ensures audit readiness and speeds up customs clearance.

Common Pitfalls to Avoid

1. Incomplete or inconsistent COO submissions: Missing fields, mismatched HS codes, or vague product descriptions often lead to shipment holds.
2. Overreliance on verbal supplier assurances: Without documented RVC or LVC declarations, the claim will not hold under audit.
3. Failure to monitor non-core suppliers: A single non-compliant subcomponent can disqualify the entire vehicle.
4. Inadequate data storage: COOs and sourcing records must be securely retained for at least five years.

Tip: Adopt a digital compliance system with supplier onboarding, automated validation, and document management.

Logistics Considerations for LSPs and Forwarders

Logistics providers are often the last link before customs submission, ensuring accuracy and speed is critical.

Collaborate with OEM clients prior to shipment to confirm compliance status

• Include USMCA COO data with your customs pre-file
• Use automated customs tools to flag errors before submission
• Ensure your team is trained in identifying common COO red flags

Freight forwarders can play a proactive role by alerting shippers when components or declarations may not meet compliance thresholds.

Enforcement and Audits

CBP and its Canadian and Mexican counterparts are actively auditing USMCA claims. Enforcement activity includes:

• Retrospective audits up to 5 years after entry
• Fines or retroactive duties if documentation is missing or fraudulent
• Random shipment reviews at ports of entry

Be audit-ready by:

• Maintaining organized records for all claimed content and sourcing
• Training teams on proper documentation practices
• Verifying supplier credentials and wage data at regular intervals

Failure to pass a USMCA audit can lead to long-term trade disruption and brand risk.

What Is Changing, and Why This Page Has a Review Date

USMCA carries a joint review by its three parties, and that review is running through 2026. The United States has gone into it pushing for higher regional and US content requirements for vehicles to qualify. Nothing in the thresholds above has changed yet, and the 75%, 70% and 40 to 45% figures are the ones in force today, but they are the specific numbers under negotiation.

The practical consequence for a compliance team is that a content file built to clear today's thresholds by a narrow margin is the one most exposed to a revision. Where a model sits at 76% RVC rather than 82%, that gap is worth knowing about before the review concludes rather than after.

Rates move on a separate track from the treaty. Section 232 duty levels, the offset percentages and the country-specific framework agreements have all been amended since April 2025, some of them more than once. Any figure on this page is stated as at the review date in the header, and a duty decision should be taken against the current schedule rather than against an article.

Final Recommendations

In a regulated and cost-sensitive industry, USMCA compliance decides how much duty you pay, not whether you pay it. To stay compliant and audit-ready:

• Build cross-functional compliance teams across sourcing, logistics, and legal
• Track and verify supplier declarations in a system rather than a spreadsheet, down through tier 2 and tier 3
• Know the margin by which each model clears each threshold, not just that it clears
• Keep the US content file current for every model claiming the non-US content basis, because that is the file CBP reopens
• Conduct mock audits and process reviews twice a year

Sources. Section 232 rates, the USMCA non-US content procedure and the import adjustment offset are drawn from the US Federal Register notices implementing Proclamation 10908 and its amendments, and from Congressional Research Service briefings on the Section 232 automotive tariffs and USMCA automotive rules of origin. Verified on 29 August 2026.