Commerce aligns USMCA auto U.S. content filing timelines

Commerce amended the procedures for importers of USMCA-qualifying automobiles to request a U.S. content determination. The notice does not change the tariff rate. It changes the submission timeline so the automobile process matches the timeline already used for medium- and heavy-duty vehicles.

Under the underlying Section 232 framework, eligible automobiles may have the additional tariff applied only to the non-U.S. content if Commerce approves a U.S. content submission for the model line. The notice states that only vehicles imported from Canada and Mexico that qualify for USMCA preferential tariff treatment are eligible. Vehicles from non-USMCA countries, and vehicles from Canada or Mexico that do not qualify for USMCA preference, are not eligible under this process.

All automobile U.S. content determinations issued under the May 20, 2025 procedures remain valid for vehicles imported before December 1, 2026, regardless of any expiration date in the determination. For automobile models imported on or after December 1, 2026, importers must submit new documentation by September 30, 2026 to ensure timely processing, and approved determinations are valid for imports before December 1, 2027. For imports on or after December 1, 2027, submissions are due by the September 1 that precedes that one-year period.

Importers must promptly request a new determination if sourcing or production changes reduce U.S. content. If CBP finds the declared U.S. content was overstated or inconsistent with Commerce's approved figure, the 25% tariff applies retroactively, to the extent authorized by law, and prospectively to the full value of all automobiles of the same model line imported by the same importer, as described in the notice.