All Federal catalytic converters meet EPA requirements. Federal Catalytic Converters are not legal for sale, installation or use in the states of California, Colorado or New York.

Converters in this catalog are based on Executive Orders issued by the California Air Resource Board and must be used in accordance with this information. In California, it is illegal to select a catalytic converter for installation based solely on vehicle weight and engine size.

Converters in this catalog are based on Executive Orders issued by the California Air Resource Board or have been approved by Colorado Department of Public Health & Environment and must be used in accordance with this information. In Colorado, it is illegal to select a catalytic converter for installation based solely on vehicle weight and engine size.

Maine allows non-CARB compliant converters on vehicles model year 2000 and older. For 2001 and newer vehicles, a CARB-compliant converter is required only if the vehicle is equipped with a California/CARB emissions system. Vehicles with a Federal/EPA emissions system may use either a non-CARB compliant converter or a CARB-compliant converter.

Converters in this catalog are based on Executive Orders issued by the California Air Resource Board and must be used in accordance with this information. In New York, it is illegal to select a catalytic converter for installation based solely on vehicle weight and engine size.