What is an Advanced Technology Partial Zero Emissions Vehicle? According the the California Air Resources Board it is a vehicle that meets SULEV and PZEV tailpipe emission requirements and also has features that improve mileage (like hybrid drive-train components).
SULEV is a Super Ultra Low Emissions Vehicle that emits 90% cleaner byproduct than the average new 2003 model year car.
PSEV is a Partial Zero Emission Vehicle that emits fewer emissions when driven in comparison to a regular gasoline car just idling.
