Where can Inspectors find information for verification of aftermarket parts?

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

Answer: (B)

Verifying aftermarket parts relies on consulting official sources to confirm that a part is approved for California emissions and appropriate for the vehicle. Appendix G of the Smog Check Reference Manual provides the formal verification steps and references for parts that have been tested or approved for use in California. The parts manufacturer’s catalog gives the exact part numbers, specifications, and installation details you need to ensure the part matches what’s listed and claimed by the maker. The California Air Resources Board website offers the official certification status and EO numbers, so you can verify that the part is authorized for use on the specific vehicle and meets California requirements. Since each source supplies essential, complementary information, using all of the above ensures a thorough and accurate verification.