New Vehicle and Engine Certification: Executive Orders for Compression-Ignition and Heavy-Duty Engines and Vehicles

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.

CARB has issued Executive Orders for the following on-road heavy-duty engine and vehicle and off-road compression-ignition engine categories. Additional certification information, summarized in the supplemental EO Summary files, is available for each category.

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

Categories
MDE / HDEMedium-Duty and Heavy-Duty EnginesEO Summary
MDEV / HDVMedium-Duty Engine Vehicles and Heavy-Duty VehiclesEO Summary
NSERIESFederal Compliant Exempted EnginesEO Summary
OFCIOff-Road Compression-Ignition EnginesEO Summary
TPEMOFCI Implementation Flexibility "TPEM" EnginesEO Summary