What is the required form of identification for CARB-approved aftermarket components?

• A. Executive Order (EO) number.
• B. Vehicle Identification Number (VIN).
• C. Owner’s driver's license.
• D. Certificate of Compliance.

Answer: (A)

The required form of identification for CARB-approved aftermarket components is the Executive Order number. CARB assigns an Executive Order to each approved part, linking it to the specific emissions testing and approval conditions. The EO number is printed on the part’s label or packaging, and it’s what inspectors and technicians check to verify a component is legally certified for use in California. This provides a traceable reference to the exact approval and ensures the part meets CARB’s standards. The VIN identifies a vehicle, not a component’s certification, so it doesn’t serve as proof of CARB approval. A driver’s license is unrelated to part certification, and a Certificate of Compliance isn’t the standard CARB identifier shown on aftermarket components—the EO number is.