Where can Inspectors find information for verification of aftermarket parts?

• A. Appendix G of the Smog Check Reference Manual
• B. Parts manufacturer's catalog
• C. All of the above
• D. California Air Resources Board website

Answer: (C)

Inspectors verify aftermarket parts by checking official documentation and manufacturer data to ensure parts meet California emissions requirements. Appendix G of the Smog Check Reference Manual provides the approved procedures and official guidance on aftermarket parts verification. The parts manufacturer’s catalog offers product-specific details and any CARB EO (Executive Order) numbers or statements indicating approval or exemptions for that part. The California Air Resources Board website houses the authoritative list of EO numbers, exemptions, and up-to-date regulatory information for aftermarket parts. Because these sources collectively cover official procedures, part-specific approvals, and current regulations, all of these resources are used to verify aftermarket parts.