Start with the inspection report
The inspection report helps show whether the failure came from emissions readings, readiness monitors, a visual inspection issue, or another problem. That matters because the correct next step depends on the specific reason for the failure.
Do not rush straight into another test
Many drivers spend extra money retesting too quickly without solving the real problem. In most cases, it makes more sense to diagnose the cause first, complete the needed repair, and then return for a retest.
Common reasons for failure
- High emissions readings — could indicate catalytic converter, oxygen sensor, or engine issues
- Check engine light on — an automatic failure regardless of tailpipe readings
- Incomplete readiness monitors — happens when codes were recently cleared or battery was disconnected
- Visual inspection failure — missing, modified, or non-compliant emissions components
- Evaporative system leak — including a loose or damaged gas cap
Your options after a failure
- Get a diagnosis. Take the vehicle to a qualified repair shop that can read the inspection report and diagnose the specific problem. A test-and-repair station can often do both the diagnosis and the fix.
- Complete the repair and retest. Once the problem is fixed, return for a retest. Some stations offer free retests if you have repairs done at the same shop.
- Check the Consumer Assistance Program. BAR's Consumer Assistance Program (CAP) may help qualifying drivers with repair costs or vehicle retirement after a failed biennial SMOG inspection.
- Request a BAR Referee appointment. If the situation is unusual — modified vehicle, special equipment, or a dispute about test results — the BAR Referee program can review the case.
State help may be available
The Consumer Assistance Program is specifically designed for drivers who fail a biennial SMOG check and need financial help with repairs. Eligibility depends on income, vehicle type, inspection history, and current program rules. The program may also offer a vehicle retirement option for some older vehicles.
Why test-and-repair stations help after a failure
A STAR-certified test-and-repair station can inspect the vehicle, diagnose the failure, and perform emissions-related repairs all in one place. This saves time compared to bouncing between a test-only station and a separate repair shop. Super Station Concord is this type of station.
Do not let registration expire
If your registration deadline is approaching, act quickly. Driving with expired registration can result in fines. If you need more time, check with DMV about extension options while you address the SMOG issue.