STAR stations are certified smog test locations run by the Bureau of Automotive Repair
A STAR station is a smog test facility certified by California's Bureau of Automotive Repair. These stations perform the official emissions test your vehicle needs to pass smog inspection. STAR stands for Smog Test Authorized Repair, and the program exists to make sure test results are reliable and consistent across the state.
STAR stations differ from regular repair shops because they meet strict equipment standards and their technicians pass state certification. When you take your car to a STAR station for a smog test, the results go directly into the state's database, and you receive a certificate you can use to register or renew your vehicle.
Not every repair shop is a STAR station. Some shops perform smog tests but are not certified by the state. Using a STAR station ensures your test meets official requirements and your results are recorded correctly.
Key Takeaways
- The official STAR locator tool on the Bureau of Automotive Repair website lets you search by ZIP code, city, or address to find nearby certified stations.
- STAR stations are the only locations where your smog test results are automatically reported to the state's database.
- You can also call your local air quality management district to ask which STAR stations are currently open and accepting tests.
- Smog test prices vary by station and region, so calling ahead to compare costs is worth your time.
Using the official STAR locator tool online
The Bureau of Automotive Repair maintains a searchable database of all certified STAR stations in California. Go to the Bureau's website and look for the "Find a STAR Station" tool. You can search by your ZIP code, city name, or street address, and the tool will show you stations within a set distance, usually with their phone numbers and hours.
The locator tool shows you which stations are currently certified. Certification can lapse if a station fails an inspection or does not renew, so the database is updated regularly. When you find a station near you, the listing usually includes whether they test all vehicle types or only certain ones—some stations do not test heavy trucks or motorcycles, for example.
Write down the phone number and call before you go. Station hours change seasonally, and some close for lunch or maintenance. Calling also lets you ask about wait times and whether they need an appointment.
Calling your local air quality management district
Your county or region has an air quality management district (AQMD) that oversees smog testing. These offices keep lists of STAR stations and can tell you which ones are currently testing vehicles. They also know if any stations have temporarily closed or if testing demand is high in your area.
To find your local AQMD, search online for "[your county] air quality management district" or call your county's main phone line and ask for the air quality office. When you reach them, ask for STAR stations near your address and whether any are currently experiencing long wait times.
The AQMD can also answer questions about whether your specific vehicle needs a smog test and what type of test it requires. Some older vehicles, new vehicles, and vehicles registered outside California have different testing rules.
What to expect when you arrive at a STAR station
Bring your vehicle registration and a valid ID. The technician will ask for your vehicle's license plate number and VIN (vehicle identification number), which is on your registration and on the dashboard. They will also ask when your vehicle was last tested, because the state has rules about how often tests can happen.
The test itself usually takes 30 minutes to an hour, depending on how busy the station is. The technician will connect your vehicle to a machine that measures exhaust emissions. You will sit in the car while they run the test. If your vehicle passes, you receive a certificate on the spot, either printed or digital depending on the station.
If your vehicle fails, the station will give you a report showing which emissions are too high. You can then take the vehicle to a repair shop to fix the problem and return to the same STAR station or a different one for a retest.
Comparing prices and services across stations
STAR stations set their own prices for smog tests. The cost varies by region and by station, typically ranging from around $30 to $80 for a basic test. Some stations charge more if your vehicle requires a more complex test, such as a test for vehicles with a check engine light or for heavy-duty trucks.
When you call a station, ask for the exact price for your vehicle type. Some stations offer package deals if you need a retest after repairs, or discounts if you combine the smog test with other services. A few stations may charge extra if you do not have an appointment, so asking about that can save you money.
Price alone is not the only reason to choose a station. A station with shorter wait times or more convenient hours may be worth a slightly higher fee, especially if you need the test done quickly.
What to do if you cannot find a STAR station nearby
If you live in a rural area or a region with few STAR stations, you may have to travel some distance. In that case, call the station ahead of time to confirm they are open and ask about their busiest hours. Some rural stations have limited hours or close on certain days.
If a STAR station is truly unavailable in your area, your local AQMD can tell you about alternative testing options. Some regions have mobile testing units that visit different locations on a schedule. A few counties allow you to request a test at a non-STAR location if no STAR station is within a certain distance, though this is rare and requires advance approval from the AQMD.
Do not use a non-STAR station unless your AQMD has specifically told you it is acceptable. Using an uncertified station means your test results may not be recorded in the state system, and you could face registration problems later.
Understanding STAR station certification and what it means for you
STAR stations must pass regular inspections by the Bureau of Automotive Repair. Inspectors check that the testing equipment is calibrated correctly, that technicians are properly trained, and that the station follows state procedures. This certification process protects you by ensuring your test is fair and accurate.
If a STAR station loses its certification, it can no longer perform official smog tests. The Bureau publishes a list of decertified stations, and the online locator tool removes them from the database. This is why checking the official locator tool is more reliable than using an old list or asking a friend where they went years ago.
When you get your smog test results from a STAR station, those results are automatically sent to the state's database. This means the state knows your vehicle passed or failed without you having to submit anything. You just need to keep your certificate for your records and bring it to the DMV if asked.
Frequently Asked Questions
Can I get a smog test at any repair shop, or does it have to be a STAR station?
Only STAR stations can perform official smog tests that the state recognizes. Some non-STAR repair shops may have testing equipment, but their results are not recorded in the state system. You must use a STAR station for your test to count toward registration or renewal.
What if the nearest STAR station has a long wait time?
Call other STAR stations in your area to compare wait times. Some stations are busier than others depending on the time of day and day of the week. Calling ahead also lets you ask if they take appointments, which can save you time waiting in line.
Do I need an appointment at a STAR station?
It depends on the station. Some take walk-ins only, some take appointments only, and some do both. Call the station you plan to visit and ask. Stations that take appointments often have shorter wait times, but they may charge a small fee for reserving a time slot.
What happens if my vehicle fails the smog test?
The station gives you a report showing which emissions failed. You take your vehicle to a repair shop to fix the problem, then return to any STAR station for a retest. You do not have to go back to the same station. The retest fee is usually the same as the original test.
How do I know if a station is really a STAR station?
Check the official Bureau of Automotive Repair locator tool or call your local air quality management district. Do not rely on a station's website or sign alone. If you are unsure, ask the station for their STAR certification number, which they should be able to provide when ready.