Which listing includes information on modifications necessary and acceptable for installation of a part, kit, or system?

• A. CARB aftermarket parts listings
• B. Tampered
• C. Not Applicable
• D. Modified

Answer: (A)

Knowing where to find approved installation guidance for aftermarket parts is essential for staying within emission standards. The CARB aftermarket parts listings are the resource that specifies which parts, kits, or systems can be installed and what modifications are required or allowed for that installation. They spell out the specific modifications necessary and the conditions under which the part is accepted, helping inspectors and installers determine compliance. A label like 'Tampered' would indicate unauthorized changes rather than an approved modification guide. 'Not Applicable' offers no guidance, and 'Modified' is too vague and does not refer to an official listing of acceptable modifications. Therefore, the correct listing is the CARB aftermarket parts listings.