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What is Legal?

We here at want you to be an informed customer.  Whether you buy your products with us or any other retailer, you need to be aware of the laws which you, your parts manufacturer, your vehicle manufacturer, and your installer must all abide.  This page is to help clarify for you what you need to know before you buy your new California catalytic converter.  For example, we often find potential customers looking for replacement catalytic converters when they were not aware that they were still covered by their OEM catalytic converter warranty.


IDENTIFYING A NEW CALIFORNIA LEGAL AFTERMARKET CATALYTIC CONVERTERS - As of January 1st, 2009, what you need to look for to ensure you are selling, buying or installing California LEGAL catalytic converters is the following:

The body should be clearly labeled with the following:

·  California ARB - EO number: (for example: D-193-88)

·  Part number: (for example: 34015)

·  Date code: (for example: 0109, for January 2009)

·  The text should be 1/2 inch tall

·  Exhaust directional flow arrow

·  All of the above must be visible from at least 5 feet away

·  All of the above must be labeled such that it is permanent and indestructible (for example: laser etching)


For the sales or installation of a California Aftermarket Catalytic Converter, the following are legal requirements:
(1) The vehicle must be specifically included in the vehicle application list that is maintained by the California Air Resource Board
(2) The vehicle must be more than 7 years old or have more than 70,000 miles on its odometer 
(3) The vehicle must be beyond the coverage of the OEM catalyst warranty period.  This period can vary from 7 years or 70,000 miles to as high as 15 years or 150,000 miles.  Installers may reference the vehicle owner’s manual or warranty booklet, or they may contact the vehicle manufacturer or dealership to verify the applicable OEM California catalytic converter warranty
(4) The vehicle must have a legitimate need for replacement of the existing catalytic converter.  If an installer is making your repair, this must be documented on the repair ticket. Also if the OEM catalytic converter is present, the installer must make a determination that it is not functioning properly before replacing it
(5) The aftermarket California catalytic converter must be installed in the same location as the OEM California catalytic converter it is designed to replace. The front face of the replacement California catalytic converter shall be no more than 3 inches further upstream or downstream in the exhaust from where the front face of the OEM California catalytic converter was located. The installation may not alter the location, position, or orientation of oxygen (O2) sensors upstream and downstream of the California catalytic converter 
(6) The aftermarket California catalytic converter must be installed on a one-for one catalytic converter basis;

(7) The aftermarket California catalytic converter must be installed with all other required catalytic converters (meaning you cannot consolidate the catalytic converters, nor can you add additional catalytic converters)

(8) If an installer completes your repair, a warranty card must be filled out by your installer, signed by you (the customer), attached to the repair ticket, and a copy must be returned to the catalytic converter manufacturer.

(9) If an installer completes your repair, they must keep documentation regarding the installation of the new aftermarket California catalytic converters including all of the above information. This documentation shall be made available to the California ARB or its representative as provided for in title 13, section 2222(b)(8). All such records shall be maintained for 4 years from the date of sale or installation of the California catalytic converter.