What a Smog Check Referee Does

A Smog Check referee is a licensed technician who re-tests vehicles that have failed a regular smog inspection. If your car fails at a standard test station, you can take it to a referee station for a second opinion before spending money on repairs. The referee performs the same test using the same standards, but they work independently from the original testing station.

Referee stations are run by the Bureau of Automotive Repair (BAR), a division of California's Department of Consumer Affairs. They exist specifically to resolve disputes between vehicle owners and test stations. If the referee's test shows your vehicle passes, you do not have to pay for the original failed test, and you can register your vehicle. If the referee also finds a failure, you then know the problem is real and can move forward with repairs.

Key Takeaways

  • A referee re-tests your vehicle at no charge if you bring proof of the original failed test within 30 days.
  • You must take your vehicle to a referee station, not a regular smog station, and you need the original test report from the failed inspection.
  • If the referee passes your vehicle, the original failure is overturned and you can register without repairs.
  • If the referee also fails your vehicle, you have a confirmed diagnosis and can proceed with repairs at any shop you choose.
  • Referee stations are located throughout California and are listed on the BAR website; you cannot choose which referee tests your car.

When You Should Use a Referee Station

Use a referee if you believe the original test was wrong or if the testing station made an error. Common reasons include a faulty test machine, a technician who did not follow proper procedure, or a vehicle that actually meets standards but was marked as failing. You have 30 days from the date of the original failed test to request a referee inspection.

You should also consider a referee if the repair estimate is very high and you want a second opinion before committing to work. The referee test is free and gives you certainty about whether repairs are actually needed. However, if your vehicle is clearly running poorly or you can see visible exhaust problems, a referee test is unlikely to change the outcome — the vehicle probably does need repairs.

How to Request a Referee Test

Bring your original failed smog test report to a referee station in your county. You do not need to call ahead or schedule an appointment at most locations, though some stations may ask you to. The referee will perform the same test that failed your vehicle the first time.

You will need your vehicle registration and the original test report. The test takes about 30 minutes. The referee will give you a new test report on the spot. If you pass, the referee sends the results to the Department of Motor Vehicles (DMV) automatically, and you can register your vehicle without further action. If you fail, you receive a detailed report showing which emissions systems did not meet standards.

What Happens If the Referee Passes Your Vehicle

If the referee test shows your vehicle passes, the original failure is cancelled. You do not owe the testing station any money for the failed test. The referee's passing result goes directly to the DMV, and you can complete your vehicle registration without repairs or additional testing.

This outcome means the original test station made an error or used faulty equipment. You are not required to report the station or take further action, though you can file a complaint with the Bureau of Automotive Repair if you believe the station acted dishonestly. Most cases are straightforward equipment errors rather than intentional misconduct.

What Happens If the Referee Also Fails Your Vehicle

If the referee test also shows a failure, you now have confirmation that your vehicle does not meet emissions standards. This is not a bad outcome — it means you have a reliable diagnosis. You can now take your vehicle to any repair shop you choose, not necessarily the original testing station.

The referee's report will specify which emissions systems failed and by how much. Use this information when getting repair estimates. Once repairs are complete, you can take your vehicle to any smog station (not a referee station) for a retest. You do not need to return to the original station or the referee. After you pass the retest, you can register your vehicle.

Finding a Referee Station Near You

Referee stations are located in every California county. The Bureau of Automotive Repair maintains a searchable list on its website at bar.ca.gov. You can search by county or ZIP code to find the stations nearest you, along with their hours and phone numbers.

You cannot choose which referee tests your vehicle — you must use a station in your county. However, most counties have multiple referee locations, so you can pick one based on convenience. Some stations are busier than others, so calling ahead to ask about wait times is reasonable, even if appointments are not required.

Frequently Asked Questions

Do I have to pay for a referee test?

No. Referee tests are free if you bring your original failed test report within 30 days. If you wait longer than 30 days, you lose the right to a free referee test and must pay for a new smog test at a regular station.

What if I lost my original test report?

Contact the testing station where you failed and ask them to print a copy. They are required to keep records of all tests they perform. If the station no longer has it, you can contact the Bureau of Automotive Repair, though this takes longer. Without the original report, you cannot use a referee station for free.

Can I take my vehicle to a referee station before it fails a regular test?

No. Referee stations only retest vehicles that have already failed at a regular smog station. If you want a test before your registration expires, you must go to a standard smog station first.

What if the referee and the original station disagree?

The referee's result is the official one. If the referee passes your vehicle, the original failure is overturned. If the referee fails it, that failure stands. You cannot request a third test from another referee — the referee's decision is final.

Can I choose which repair shop fixes my vehicle after a referee failure?

Yes. The referee's report is yours to use at any shop. You are not required to return to the original testing station or use any particular repair facility. Get estimates from multiple shops if you want to compare prices.