New Procedures for Importers of Automobiles Under the USMCA

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On August 19, 2026, new procedures were announced by the U.S. Department of Commerce. These concern the way importers of automobiles can submit documentation for preferential tariff treatment under the USMCA. The changes aim to manage and review submissions more efficiently.

Background

In March 2025, President issued Proclamation 10908. This proclamation imposed tariffs on certain automobiles and parts, citing national security concerns. Importers under the USMCA could submit documentation to show U.S. content in their vehicles. In May 2025, procedures to submit and review these documents were established.

In October 2025, Proclamation 10984 was issued. It addressed imports of medium- and heavy-duty vehicles. Changes brought these procedures in line with those for automobiles.

New Procedures

The new procedures align the submission timelines for automobiles with those set for medium- and heavy-duty vehicles. Importers can submit documents from August 19, 2026. Submissions must be electronic.

Eligibility determinations for automobiles imported from December 1, 2026, to November 30, 2027, will be valid for one year. Importers must submit documentation by September 30, 2026, to ensure timely processing.

Eligibility Criteria

Only automobiles eligible for USMCA preferential treatment can benefit from the reduced tariff on the non-U.S. content. The preferential tariff benefits apply to automobiles imported from Mexico and Canada.

Submission Details

Importers need to detail the automobile’s U.S. and non-U.S. content. The value must be certified by a senior officer. Other required details include:

  • Total customs value of the automobile.
  • Production locations and country of assembly.
  • Certification of USMCA preferential treatment.

Review Process

The Department of Commerce will check documents for accuracy. They might ask for more information if needed. Once verified, importers and CBP will be informed of the non-U.S. content value. The additional tariff will apply to this value.

Changes in automobile production must be reported. This includes increased or decreased U.S. content.

Consequences for Errors

If inaccuracies are found, the tariff will apply to the full value of the automobiles. This includes past and future imports until the error is rectified.

Confidential Business Information

All submissions containing confidential business information must be clearly marked.

No Change to USMCA Status

These procedures do not affect the eligibility of vehicles for USMCA tariff preferences.

Conclusion

The new procedures help streamline the review process for importers seeking tariff benefits under the USMCA. They ensure consistent application of tariffs, benefiting the U.S. economy and maintaining national security.


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