Verification Procedure

While we use every reasonable effort to provide accurate and up-to-date information, we make no warranties or representations as to the accuracy of the content and assume no liability or responsibility for any error or omission in the content.

It is the responsibility of the fleet operator and (or) installer to evaluate the appropriateness of a particular device for any given vehicle, including consideration of duty cycle, engine and exhaust parameters, space considerations, and safe installation. All of the terms and conditions of the executive order and corresponding attachments must be met for the device to be considered for a given engine application.

ARB staff STRONGLY recommend each fleet operator and (or) installer read the Executive Order for each device to determine and confirm the specific operating requirements and engines for which the device is verified.

Furthermore, it is your responsibility to verify and confirm that the Content is accurate and up-to-date.

Please note, at this time the verification database only has information for 1981 through 2009 heavy duty diesel engines.