# Trade rules, content requirements, and cross-border compliance
A single bolt sourced from the wrong country can cost an automaker a 2.5% tariff on an entire vehicle. That is the reality of modern trade compliance: where you buy your steel, wire your battery cells, and stamp your parts now decides whether a car qualifies for duty-free treatment or a federal tax credit worth thousands per unit.
This lesson unpacks three overlapping regimes that shape every North American assembly decision: the USMCA content rules, the tariff structure that sits behind them, and the battery-sourcing conditions of the Inflation Reduction Act (IRA).
The USMCA (United States, Mexico, Canada Agreement) replaced NAFTA in July 2020. It is the trade agreement governing duty-free movement of vehicles and parts across the three countries. It is administered in the US by Customs and Border Protection (CBP), part of the Department of Homeland Security, and by the Office of the US Trade Representative (USTR) for policy.
To cross a border duty-free, a vehicle must meet rules of origin: proof that enough of its value comes from within the region. The core metric is regional value content (RVC), the percentage of a vehicle's value originating in the US, Mexico, or Canada.
USMCA raised the passenger-vehicle RVC threshold from NAFTA's 62.5% to 75% (phased in through 2023). If you fall below it, your vehicle loses preferential treatment and faces the applicable tariff.
USMCA added conditions NAFTA never had:
A worked example. Suppose a crossover has a net cost of USD 30,000:
RVC = 21,000 / 30,000 = 70%. That is below the 75% threshold, so this vehicle does not qualify for duty-free entry. The automaker must either source more locally or accept the tariff. This is exactly the kind of calculation compliance teams run per model, per platform.
The official rules of origin text is public. See the USTR USMCA overview for the agreement structure.
Tariffs are taxes on imports. For passenger cars entering the US under standard Most Favored Nation (MFN) rates (the default rate applied to WTO members), the tariff is 2.5%. For light trucks it is 25%, the long-standing "chicken tax" dating to a 1960s trade dispute.
So the stakes of missing RVC differ wildly by vehicle type. Miss it on a sedan and you pay 2.5%. Miss it on a pickup and you pay 25%, a margin-destroying number.
Beyond MFN, the US has used Section 232 (national security tariffs) and Section 301 (unfair trade practice tariffs, notably on Chinese goods) to layer additional duties. As of 2026, tariffs on imported vehicles and parts have been an active and shifting policy area, so treat any specific added rate as time-sensitive and verify current CBP guidance before relying on it.
The practical takeaway: tariff exposure is not a background cost. It is a design input. Automakers model tariff scenarios into platform decisions years before a vehicle launches.
The Inflation Reduction Act of 2022 (IRA) rewired electric vehicle (EV) incentives. It replaced the old flat USD 7,500 federal credit with a two-part test, each part worth USD 3,750, administered through the Internal Revenue Service (IRS) and the Treasury Department.
1. Critical minerals requirement: a rising percentage of the value of battery minerals (lithium, cobalt, nickel, graphite, manganese) must be extracted or processed in the US or a country with a US free-trade agreement, or recycled in North America. The threshold started at 40% and steps up over time.
2. Battery component requirement: a rising percentage of battery components (cells, modules) must be manufactured or assembled in North America. This threshold started higher, at 50%, and also steps up.
Meet one half, get USD 3,750. Meet both, get the full USD 7,500.
The IRA also bars credits for vehicles whose batteries contain materials from a Foreign Entity of Concern (FEOC), a category that centrally targets China. Since China dominates global battery-mineral processing (an estimated majority of the world's lithium and graphite refining, per commonly cited industry data), this rule is the hardest to satisfy and reshapes global supply chains.
The IRA also caps eligibility by vehicle price (USD 55,000 for cars, USD 80,000 for SUVs and trucks) and by buyer income. Final assembly must occur in North America to qualify at all.
Combine these rules and the logic becomes clear. To earn the full USD 7,500, an automaker needs: final assembly in North America, battery cells built here, and minerals routed away from China through allied or domestic supply. That is why since 2022 there has been a wave of announced US battery plants (across states like Georgia, Tennessee, Kentucky, and Michigan) from firms such as Ford, General Motors, Hyundai, Toyota, and battery makers LG Energy Solution, SK On, and Panasonic.
The IRS eligibility list changes as models qualify and drop off. The current official list lives at fueleconomy.gov.
Vérification des acquis
1. Why does the sourcing origin of a single small component, like a bolt, potentially affect the tariff treatment of an entire vehicle?
2. What is the fundamental purpose of the labor value content (LVC) requirement that USMCA added but NAFTA lacked?
3. An automaker's vehicle achieves 78% regional value content but only 35% of its value comes from workers earning above the wage threshold. How should this be interpreted under USMCA?
4. Select ALL correct answers about the tests USMCA introduced that did not exist under NAFTA.
Sélectionnez toutes les réponses correctes.
5. Select ALL correct answers about the roles and structure of the regimes governing North American trade compliance.
Sélectionnez toutes les réponses correctes.
These rules are not independent. A single EV built in Mexico for the US market faces all three at once:
A vehicle can pass one test and fail another. An EV assembled in Mexico can be duty-free under USMCA yet still lose the IRA credit if its cells come from a FEOC. A luxury EV can meet every sourcing rule and still be disqualified by the price cap.
In practice, compliance is a documentation exercise as much as a sourcing one. Companies must:
A single sourcing change (switching a cathode supplier, for example) can ripple through all three regimes and require recertification.
Europe uses different levers. The EU has no direct RVC-style consumer credit like the IRA. Instead it drives EV adoption through CO2 fleet emission targets set by the European Commission, which fine automakers whose average fleet emissions exceed limits. The EU has also opened trade-defense actions on imported Chinese EVs, imposing countervailing duties in 2024 to counter what it assessed as unfair subsidies. So both blocs push local production, but the US uses carrots (tax credits) while the EU leans more on penalties (emission fines and duties). Treat specific EU duty rates as time-sensitive and verify current European Commission guidance.