What is the required outcome if VIN tampering is suspected during VI even when no other issues are apparent?

• A. Fail the VI and document findings.
• B. Pass the VI and note tampering separately.
• C. Ignore VIN tampering unless issues are found.
• D. Request a new VIN and continue.

Answer: (A)

VIN tampering undermines the test’s integrity because the VIN is the official identifier used to verify the vehicle’s identity and eligibility for emissions testing. During the Visual Inspection, you verify that the VIN is present, matches the vehicle’s documentation, and shows no signs of alteration. If tampering is suspected, even with no other issues, the vehicle must fail the Visual Inspection and you should document the tampering findings. This records potential fraud or unsafe modifications and prevents passing a vehicle with a manipulated identity. A pass would be inappropriate, and trying to substitute a new VIN or ignore the tampering would not address the problem. So the required outcome is to fail and document.