If the vehicle requires a CARB-certified catalytic converter, there are several ways to determine the correct converters unlimited to install on a vehicle. The first point of reference should be the catalog provided by the aftermarket converters unlimited manufacturer. Aftermarket converters unlimited manufacturers have printed and electronic versions of their product application guides for converters that have been approved by both California and Colorado. These application guides include the part number, make, model, model year, engine family, and engine displacement/test group.
A listing of approved aftermarket converters unlimited is also available at California’s Air Resources Board website:
It is important to note that the California aftermarket parts website only provides results for vehicles that have California-only certification, or for vehicles that were dual certified for both California and Federal use. Therefore, some vehicles with a Federal-only certification will not be found in the California aftermarket parts database.
The aftermarket converters unlimited database provides options to search by vehicle make, model year, model, and engine size; or the installer may enter an executive order number to determine all applicable vehicles allowed for that . Air Resources Board exemptions are issued through Executive Orders. Executive Orders for converters can be sorted by Executive Order number, or by converter manufacturer. Aftermarket converters unlimited sold after January 1, 2009, will also have the Executive Order number permanently labeled on converters unlimited shell.
Before installation, installers should consult the manufacturer’s converters unlimited application catalog to verify that the converter model is designed to fit the specific vehicle application and that it is specifically approved for use in Colorado. Statements such as “approved for use on OBD II vehicles” does not necessarily mean that the approval is valid for Colorado.
Penalties
Pursuant to Colorado Revised Statutes Section 25-7-122(1)(b), CDPHE has the authority to assess monetary penalties to any person who violates any requirements of an emissions control regulation of the Air Quality Control Commission. Any person who violates Regulation Number 20, 5 CCR 1001-24, is subject to a civil penalty of not more than forty-seven thousand three hundred fifty-seven ($47,357) dollars per day for each day of the violation.