Star Station locations are independently owned test facilities certified by your state's emissions program
A Star Station is a smog check test facility run by a private business — a repair shop, tire store, or dedicated testing center — that has been certified by your state's air quality agency to perform emissions testing. Unlike a referee station (which is run by the state itself), a Star Station owner pays to maintain certification and can charge a testing fee, which varies by location and state.
When you search for "Star Station smog check near me," you are looking for one of these certified private locations in your area. The station tests your vehicle's emissions system, records the results in the state database, and gives you a certificate if your vehicle passes. If it fails, you get a report showing what needs repair.
Finding a nearby Star Station is straightforward because most states publish searchable lists of certified locations online. The process differs slightly by state, but the basic steps are the same: locate a station, call to confirm hours and fees, and bring your vehicle registration and driver's license on test day.
Key Takeaways
- Star Stations are private, certified test facilities where you pay a fee to have your vehicle's emissions tested.
- Your state's air quality or environmental agency maintains a public list of all certified Star Station locations, searchable by zip code or city.
- Test fees typically range from $30 to $80 depending on your state and the specific station, and you should call ahead to confirm the current price.
- A passing test result is recorded in the state system when ready, and you can usually print or receive a certificate the same day.
- If your vehicle fails, the station provides a detailed report of emissions problems, but does not perform repairs unless it is also a repair shop.
How to locate a Star Station in your state
Each state that requires smog checks maintains its own database of certified test stations. In California, you search the Bureau of Automotive Repair (BAR) website by entering your zip code; in Colorado, you use the Colorado Department of Public Health and Environment portal; in New York, you check the Department of Environmental Conservation list. The exact website varies, but all state agencies publish these lists for free.
When you find the state database, you will see the station name, address, phone number, and sometimes hours of operation. Many listings also show whether the station is a Star Station (private) or a referee station (state-run). Call the station before you visit to confirm it is still open, ask about current test fees, and find out whether you need an appointment or can walk in.
If you do not know which state agency runs smog checks in your state, search "[your state] smog check test station locator" or "[your state] emissions testing." The state environmental or air quality agency will appear in the first results.
What to bring and what to expect on test day
Bring your vehicle registration and a valid driver's license. The technician will need to see proof that the vehicle is registered to you and that you are authorized to test it. Have your vehicle's VIN (Vehicle Identification Number) ready — it is on your registration and on the dashboard — because the technician will enter it into the state database along with your test results.
The test itself takes 10 to 30 minutes. The technician will connect a probe to your vehicle's tailpipe (or diagnostic port on newer vehicles) to measure emissions. You will sit in the vehicle while this happens. The machine records whether your emissions fall within the legal limits for your vehicle's year and model.
Once the test is complete, the technician will tell you whether you passed or failed. If you passed, you receive a certificate (usually printed on the spot) and the result is recorded in the state system. If you failed, you get a detailed report listing which emissions systems are out of spec and what repairs may be needed.
Star Station test fees and what they cover
Test fees are set by the individual station owner, not by the state, so prices vary. In most states, a basic smog check costs between $30 and $80. Some stations charge more if your vehicle requires a more complex test (such as a two-speed idle test on older vehicles) or if you need a retest after repairs.
The fee covers the emissions test and the certificate if you pass. It does not cover any repairs your vehicle may need. If the station is also a repair shop, you can ask for a repair estimate, but the test fee itself is separate from repair costs. Some stations offer a discount if you have repairs done at their shop after a failed test, but this is optional — you can take your vehicle anywhere for repairs.
Ask about the fee when you call to confirm the station is open. Some stations also charge a small retest fee (usually $10 to $20) if you return after repairs to verify that your vehicle now passes.
What happens if your vehicle fails the smog check
A failed test does not prevent you from driving your vehicle — it means your emissions are above the legal limit and you will need repairs before you can renew your registration. The station gives you a report showing which emissions systems failed and what the readings were.
You then take your vehicle to a repair shop (which may or may not be the same Star Station where you tested) and have the necessary work done. Common repairs include replacing an oxygen sensor, fixing a catalytic converter, or addressing a fuel system leak. After repairs, you return to any certified Star Station (not necessarily the same one) for a retest.
Your state usually gives you a grace period — often 30 to 60 days — to complete repairs and pass a retest before your registration renewal is denied. Check your state's specific rules, because the timeline varies. Some states allow you to register your vehicle with a failed test result if you have proof that repairs are in progress.
Star Station versus referee station: which to choose
A referee station is run directly by your state and charges a lower fee (often $10 to $30) because it is subsidized. A Star Station is privately owned and charges more. Both are equally valid for emissions testing, and both results are recorded in the same state system.
The main reason to choose a Star Station over a referee station is convenience — Star Stations are often more numerous, have longer hours, and may be closer to your home or work. The trade-off is the higher fee. If cost is your priority and you have a referee station nearby, that is a valid option. If you need flexibility in timing or location, a Star Station may be worth the extra cost.
Some states have very few referee stations, making Star Stations the practical choice. Check your state's locator to see what is available in your area before deciding.
How to prepare your vehicle before testing
Your vehicle is more likely to pass if the engine is in good condition. Before your test, make sure your check engine light is off (if it is on, the vehicle will fail). Have your oil changed if it is overdue, because dirty oil can affect emissions. Make sure your gas cap is tight — a loose or missing cap can trigger an emissions failure.
Drive your vehicle normally for at least 20 minutes before the test so the engine reaches operating temperature. A cold engine can produce higher emissions readings. Avoid driving through deep water or puddles in the days before your test, as moisture in the engine can affect results.
If your vehicle has failed before, address the specific issues listed on the previous failure report. If you are unsure whether repairs were done correctly, ask the repair shop for documentation before you return for a retest.
Frequently Asked Questions
Can I test my vehicle at any Star Station or does it have to be the same one?
You can test at any certified Star Station in your state. If your vehicle fails and you have repairs done elsewhere, you can return to a different Star Station for the retest. The state system records all results under your vehicle's VIN, regardless of which station performs the test.
What if I lose my smog check certificate?
Contact the Star Station where you tested and ask for a duplicate. They can print a new certificate from the state database using your vehicle's VIN and the test date. If you cannot reach the original station, contact your state's air quality agency directly — they can issue a replacement or provide proof of your passing test.
Do I need an appointment at a Star Station or can I walk in?
This varies by station. Some accept walk-ins during business hours; others require appointments, especially during busy seasons. Call ahead to ask. If you are in a hurry, asking about appointment availability when you call will save you a trip.
How long does a smog check certificate last?
A passing smog check is valid for your vehicle registration renewal in that year. Once your registration expires, you will need a new smog check before you can renew. The exact timing depends on your state's registration cycle — typically every one or two years.
What if my vehicle is too old or too new to test?
Most states exempt vehicles older than 30 to 40 years and some exempt very new vehicles (usually those less than 4 years old). Check your state's rules or ask the Star Station when you call — they can tell you when ready whether your vehicle is subject to testing based on its year and model.