Find your smog check results online or by phone

You can look up whether your vehicle passed or failed a smog check through the California Bureau of Automotive Repair (BAR) website, by phone, or in person at a smog station. The fastest route is the BAR's online lookup tool, which shows results from any certified station in the state. You will need your vehicle's license plate number and the last four digits of your Vehicle Identification Number (VIN) — both appear on your registration.

If you took your test recently and results are not showing yet, wait 24 to 48 hours. The station uploads results to the state system, and there is a lag between when you test and when the information appears online. If you cannot find your results after two business days, call the BAR directly or return to the station where you tested.

Key Takeaways

  • The California Bureau of Automotive Repair website lets you search smog check results using your license plate and the last four digits of your VIN.
  • Results take 24 to 48 hours to appear in the state system after you test, so check back the next day if nothing shows up when ready.
  • A pass result is valid for two years from the test date and satisfies the requirement to renew your registration.
  • If you failed, you have 30 days to repair your vehicle and retest at no additional fee at the same station.
  • You can also call the BAR at 1-800-622-7233 or visit the station where you tested to get your results by phone or in person.

Using the BAR online lookup tool

Go to the California Bureau of Automotive Repair website and select "Check Your Smog Check Status." Enter your license plate number exactly as it appears on your registration, including any spaces or dashes. Then enter the last four digits of your VIN. The system will show whether your vehicle passed or failed, the test date, and the station name where you tested.

The online tool works for tests performed at any certified smog station in California. If you tested out of state or at a station that is no longer certified, the lookup may not return results — in that case, contact the station directly or call the BAR. The tool is free and available 24 hours a day.

What a pass result means for your registration

A passing smog check result is valid for two years from the test date. You can use this result to renew your vehicle registration without retesting during that two-year window. When you renew your registration through the Department of Motor Vehicles, the DMV will see your passing result in the state system automatically — you do not need to bring a paper certificate or upload anything.

If your registration renewal notice arrives before your smog check is due, you can renew early. The smog check requirement applies to most vehicles model year 1976 and newer, though some newer vehicles and certain vehicle types are exempt. Check your renewal notice to see whether smog is required for your specific vehicle.

What to do if your vehicle failed

A failed result means your vehicle did not meet California's emissions standards at the time of testing. You have 30 days from the test date to repair your vehicle and retest at the same station at no additional charge. The station will waive the retest fee if you return within 30 days — after that, you pay the full test fee again.

You do not have to use the same repair shop, but you must retest at the same station where you originally failed. Some stations offer repair services on-site, but you can take your vehicle to any mechanic. Keep your failed test receipt so you can show it to the station when you return for the retest. If you fail a second time, you can continue retesting, but each new test after the first 30 days costs the full fee.

Calling the BAR for results by phone

If you prefer not to use the online tool, call the California Bureau of Automotive Repair at 1-800-622-7233. Have your license plate number and the last four digits of your VIN ready. A representative can tell you your pass or fail status, the test date, and the station where you tested. Phone lines are open Monday through Friday, 8 a.m. to 5 p.m. Pacific time.

Wait times vary depending on call volume. If you are calling during peak hours, you may wait 10 to 20 minutes. The online lookup tool is usually faster if you can access it, but calling is a good option if you have questions about your results or need help understanding what comes next.

Getting results in person at the smog station

You can return to the station where you tested and ask for your results in person. Bring your registration or a photo ID. The station staff can print your results or tell you whether you passed or failed on the spot. This is useful if you need documentation when ready or if you want to discuss repair options with the station staff.

Not all stations are open the same hours, so call ahead before you go. Some stations are open evenings and weekends, but others operate only during business hours. If the station is closed or you cannot reach them, use the online lookup tool or call the BAR instead.

Frequently Asked Questions

How long does it take for smog check results to show up online?

Results usually appear in the state system within 24 to 48 hours after you test. If you tested on a Friday, results may not show until Monday or Tuesday. If results do not appear after two business days, contact the station or call the BAR.

Can I check someone else's smog check results?

No. The lookup tool requires your license plate and VIN, and results are tied to the vehicle, not the owner. You can only look up results for vehicles you own or have permission to check on behalf of the owner.

What if I lost my smog check receipt?

You do not need the paper receipt. The BAR system stores all results, and you can look them up anytime using the online tool or by calling. If you need a copy for your records, the station can print one or the BAR can provide documentation.

Do I need to check my results before renewing my registration?

No. If you passed, the DMV will see your results automatically when you renew. You only need to check if you want to confirm the result before paying the registration fee, or if you are unsure whether you tested.

What happens if my smog check result expires before I renew my registration?

You will need a new smog check to renew your registration. Results are valid for two years, so if your registration is due more than two years after your test date, you must retest. The DMV will tell you during the renewal process if a new test is required.