Emission Control System Description: Description

Exhaust emissions are controlled by a combination of engine modifications and special component systems. Component usage varies according to model, engine and location of original purchase. All vehicles, except California, must meet the requirements of Light Duty Cycle Emission Standards.

California vehicles with a GVW of 8500 lbs. or less, must meet the requirements of Light Duty Cycle Emission Standards. California vehicles with a GVW of 8501 lbs. or more, must meet the requirements of Heavy Duty Cycle Emission Standards.