Vehicle Failures

What To Do Next

Diagnosing a vehicle for emission inspection failure can be complicated. You are free to select a qualified repair technician or repair the vehicle yourself. However, due to the complexity of today’s vehicles, you should strongly consider having your vehicle repairs performed by a qualified technician who is experienced in diagnosing and repairing vehicle emission systems.

Vehicles not passing the inspection will receive a vehicle inspection report with the reason(s) the vehicle is failing. After appropriate repairs are made to the vehicle, you are entitled to one free re-inspection within ninety (90) days of the initial inspection, at any Tennessee vehicle inspection stations (excluding Memphis). The failing vehicle inspection report must be presented to the inspector prior to the inspection to receive the free re-inspection.

If your vehicle fails a second time after repairs, The State of Tennessee has a free service available for customers whose vehicle fails more than one time and have already taken the vehicle to their own mechanic. The State Mechanics do not repair vehicles, but may be able to give advise on how to correctly repair the vehicle.

Middle Tennessee For assistance contact a representative of the Air Pollution Division of the Tennessee Department of Environmental & Conservation at 615-532-8378 or 1-866-329-9632.
Chattanooga For assistance contact a representative of the Air Pollution Division of the Tennessee Department of Environmental & Conservation at 423-892-8643.

When returning for a re-inspection, 1975 – 1995 gasoline vehicles and all diesel vehicles will be subject to the entire anti-tampering and appropriate emissions test. 1996 and newer gasoline vehicles will only be subject to the portion of the inspection which the vehicle originally failed and required visual inspection of the catalytic converter.

If the vehicle fails the re-inspection, a vehicle inspection report will be provided indicating the reason(s) for failure. The vehicle must have the necessary repairs made in order for the vehicle to pass the vehicle inspection.

The next re-inspection will cost $9.00 with the following re-inspection (if needed) free. This cycle will continue, pay for an inspection, receive a free inspection, until the vehicle passes.