What should a technician do if the VIN number on the vehicle does not match the DMV paperwork?

• A. Proceed with the test and note the mismatch.
• B. Abort the test and advise the customer to contact the DMV to have the mismatch corrected.
• C. Replace the VIN plate with the DMV paperwork.
• D. Ignore the mismatch if the vehicle runs well.

Answer: (B)

A VIN must match the DMV paperwork exactly, because the vehicle’s identity and its emissions history are tied to that number. If you find a VIN on the vehicle that doesn’t align with the DMV records, you cannot proceed with the test. This protects against fraud, tampering, or mistaken identity and keeps the testing and reporting accurate.

So the correct action is to abort the test and tell the customer to contact the DMV to get the mismatch corrected. This approach aligns with legal and regulatory requirements, and it ensures the vehicle’s records are clean and verifiable before any test results are produced. Document the mismatch, secure the vehicle, and steer the customer toward DMV resolution.

Doing the test, replacing VIN plates, or ignoring the mismatch would be illegal or unsafe and could lead to penalties or invalid test results.