Stock Markets May 29, 2026 10:36 AM

U.S. to Push for 50% Domestic Content Requirement in USMCA Auto Rules

Administration's proposal would require half of a vehicle's parts and materials to come from U.S. sources as an opening position in upcoming USMCA talks

By Maya Rios

The Trump administration plans to propose that 50% of automobile components and materials be sourced from the United States for vehicles to qualify for preferential tariff treatment under the U.S.-Mexico-Canada Agreement. The move would mark a major shift from the current USMCA rules, which require 75% North American content but do not set a U.S.-specific threshold. The proposal is being prepared as part of negotiations to restructure the pact ahead of its scheduled review, and it represents an opening negotiating position that could be adjusted as talks progress.

U.S. to Push for 50% Domestic Content Requirement in USMCA Auto Rules

Key Points

  • The proposed rule would require 50% of the dollar value of automobile components and materials to come from U.S. sources for preferential USMCA tariff treatment.
  • Current USMCA rules mandate 75% North American content but do not specify a U.S.-only content requirement; U.S. negotiators also plan to seek a higher North American content threshold.
  • The proposal is an opening position prepared ahead of this year’s scheduled review of the USMCA; a U.S. delegation is holding initial formal discussions in Mexico City and the proposal may change during negotiations.

The Trump administration is preparing a policy proposal that would require 50% of the dollar value of components and materials in automobiles to originate in the United States for the vehicles to qualify for lower tariffs under the U.S.-Mexico-Canada Agreement (USMCA), according to reporting that cites people familiar with the plans.

Under the current USMCA framework, 75% of a vehicle’s materials must come from North American sources to receive preferential tariff treatment. That standard, however, does not include a specific requirement that any portion of those materials be manufactured or sourced in the United States. The new proposal would add a U.S.-content threshold measured by the dollar value of parts and materials.

Officials prepared the proposal in advance of negotiations to revise the USMCA, which President Trump signed in 2020 and which is scheduled for review this year, the people said. A U.S. delegation has traveled to Mexico City this week to begin formal discussions on the pact with Mexican officials as part of that review process.

Sources describe the proposed 50% U.S. content requirement as the administration’s opening negotiating position with Mexico. Those sources also caution that the proposal could be altered during negotiations as talks proceed over the coming months.

In addition to the U.S.-specific content requirement, the U.S. negotiating team plans to seek an increase in the overall North American content requirement above the current 75% threshold, according to other people familiar with the matter. That suggested adjustment would affect how much of a vehicle’s value must be produced within North America to qualify for tariff advantages under the agreement.

The reporting that disclosed these negotiation positions attributed the information to people with knowledge of the administration’s plans. The individuals characterized the measures as initial proposals for the U.S. delegation’s agenda during the talks in Mexico City and noted the potential for change as negotiations continue.

At this stage, the proposal exists as an opening stance in the administration’s broader effort to renegotiate parts of the pact. How the Mexican and Canadian governments respond, and whether the proposed thresholds are ultimately adopted or modified, were not described in the reporting cited by those familiar with the plans.


Summary: The administration plans to propose that 50% of automobile components and materials be sourced in the U.S. to qualify for reduced tariffs under the USMCA, while also seeking to raise the North American content requirement above 75%. The proposal is an opening negotiating position prepared ahead of the pact’s scheduled review, and U.S. officials are in Mexico City for initial formal discussions.

Risks

  • The proposal is described as an opening negotiating position and may be altered as talks progress - this creates uncertainty for automakers and suppliers planning production and sourcing strategies.
  • Any change to content thresholds could affect the automotive manufacturing and parts supply sectors by altering eligibility for preferential tariffs under the USMCA.
  • Because discussions are in the early stages, the final outcome and timing of any rule changes remain uncertain, impacting trade and tariff planning for stakeholders across manufacturing and trade-related markets.

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