Arcadia has one dedicated smog test-only location, operated by a private testing station

Arcadia's smog test-only center is located at a single address and does not perform repairs. The center tests vehicles to measure whether they meet California's emissions standards, then returns a pass or fail result. If your vehicle fails, you take that result to a repair shop of your choice — the test center itself does not fix anything.

This separation between testing and repair is standard in California. A test-only station cannot profit from repairs, which removes the financial incentive to fail a vehicle unnecessarily or recommend unnecessary work. You pay for the test, receive your results, and decide where to go next based on what the test shows.

Key Takeaways

  • Arcadia's smog test-only center is a private station that tests emissions but does not perform repairs or sell parts.
  • You need your vehicle registration, proof of current insurance, and the vehicle itself to complete a test.
  • A test typically takes 30 minutes to an hour, and you receive results the same day.
  • If you fail, you can take your vehicle to any repair shop in California — you are not required to use any particular one.
  • Test costs vary by vehicle type and year, but typically range from $30 to $80 depending on the station's pricing.

What to bring and how the test works

Bring your vehicle registration and proof of current insurance. The test station will need to verify that your vehicle is registered in California and that you have active coverage. You will also need the vehicle itself — the technician will connect it to an emissions analyzer to measure tailpipe output.

The test measures hydrocarbons, carbon monoxide, nitrogen oxides, and particulate matter depending on your vehicle's model year and type. Older vehicles (typically pre-1996) undergo a simpler test; newer vehicles may require an onboard diagnostic (OBD) scan that reads data directly from the engine computer. The entire process usually takes 30 minutes to an hour.

You receive your results on the same day. If you pass, the test station submits your passing result to the California Department of Motor Vehicles electronically, and your registration is cleared. If you fail, you receive a detailed report showing which emissions exceeded the standard, and you can take that report to any repair shop.

When you need a smog test in Arcadia

California requires a smog test every two years for most vehicles, or annually for vehicles over 8 years old. Your registration renewal notice will state whether a test is required. If you are buying a used vehicle in California, the seller must provide proof of a passing test from within the last 90 days — you cannot register the vehicle without it.

Some vehicles are exempt: electric vehicles, vehicles under 6,000 pounds registered after January 1, 2021, and certain other new or specialty vehicles. Check your registration notice or contact the DMV to confirm whether your vehicle needs testing.

Finding the test-only center location and hours

Arcadia's smog test-only center operates during standard business hours, typically Monday through Friday and some Saturday hours. Hours and exact location can change, so contact the center directly or check the California Bureau of Automotive Repair (BAR) website, which lists all licensed test-only stations by city.

The BAR maintains a searchable database at bar.ca.gov under "Find a Referee Station." Enter Arcadia and filter for test-only stations. This database shows the address, phone number, and hours for each location. Calling ahead to confirm hours and ask about wait times is recommended, especially during peak renewal periods in spring and early summer.

What happens if you fail the test

A failing result means your vehicle's emissions exceeded California's standards for your vehicle's model year. The test report will specify which pollutants were over the limit. You then have the option to repair the vehicle and retest, or in some cases to request a second test at a different station if you believe the result was incorrect.

You can take your vehicle to any repair shop — a dealership, an independent mechanic, a chain shop, or a specialist in emissions repair. Bring the failing test report with you. The repair shop will diagnose the problem (which may be a faulty oxygen sensor, a clogged catalytic converter, a vacuum leak, or other issues) and perform the necessary work. After repair, you return to any test-only station to retest.

California offers a Smog Check information Program for low-income vehicle owners who cannot afford repairs. If you meet income requirements, the program may cover repair costs up to a certain limit. Contact your local air quality management district or the BAR to learn whether you are may be able to access.

Cost and payment methods

Test costs at Arcadia's test-only center vary depending on the station's pricing structure and your vehicle type. Most test-only stations charge between $30 and $80 per test. Diesel vehicles, hybrid vehicles, and vehicles with onboard diagnostic systems may have different pricing.

Payment methods typically include cash, debit card, and credit card. Some stations may accept digital payment methods. Call ahead to confirm what payment options are available and whether you need to make an appointment or can walk in.

Retesting after repairs

After you have had repairs done, you can return to Arcadia's test-only center or visit any other test-only station in California to retest. There is no requirement to retest at the same location. You will pay the test fee again, and the new result will be submitted to the DMV.

California allows a 30-day repair period after a failing test. During this window, you can drive your vehicle to a repair shop and back for testing without needing a valid smog certificate. After 30 days, you must have a passing test or a current certificate to legally drive the vehicle.

Frequently Asked Questions

Can I test a vehicle that is not registered to me?

No. The vehicle must be registered in your name or you must have written authorization from the registered owner. The test station will verify registration before testing. If you are buying a used vehicle, the seller is responsible for providing a passing test before you take ownership.

What if I just moved to Arcadia from another state?

California requires a smog test before you can register an out-of-state vehicle in California. You will need to obtain a test at any test-only station, including Arcadia's, before you can complete your registration with the DMV. Bring your out-of-state registration and proof of insurance.

Do I need an appointment or can I walk in?

Most test-only stations accept walk-ins, but wait times vary by season and time of day. Calling ahead to ask about current wait times is a good idea, especially during spring and early summer when many people renew registrations. Some stations may offer appointments; ask when you call.

What if the test station says my vehicle cannot be tested?

A vehicle may not be testable if the check engine light is on, if the odometer is broken, or if the vehicle is in unsafe condition. The test station will explain what needs to be fixed before testing can proceed. You will need to have those issues addressed and return for testing.

Can I dispute a failing result?

Yes. If you believe the result is incorrect, you can request a retest at a different test-only station within a short timeframe. The second test result will be the official one. Some stations also allow you to observe the test process to understand how the result was determined.