California Air Resources Board

The New Vehicle and Engine Certification Program is responsible for the certification of new engines, vehicles, powertrains, aerodynamic devices and other new certifications.  Vehicles and engines may be sold and otherwise produced in California only if approved by Executive Order (EO) after review by CARB.  Executive Orders are issued for on-road and off-road categories.

Scanned copies of issued Executive Orders may be requested via email.

The following Executive Orders granted to the listed on-road medium-duty and heavy-duty exempt engines manufacturers have been issued during the 2023 model year, as of May 5, 2023.

Further information is available in the Executive Orders Summary.

For questions, please contact Heavy-Duty Certification or Help Line at 1-800-242-4450.

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