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Superior Auto Clinic Building

What is the Difference between Emissions Testing and a Smog Check?


Emissions Testing vs. Smog Check

State and local mandated emissions testing meets the EPA Tier 2 standard, while smog testing meets California's higher standard for EPA Tier 3.

How Do I Know If I Need a Smog Test?

Your DMV registration renewal notice will indicate "Smog Check Required" if your vehicle needs a smog check.

When Is a Smog Check Required?

  • If you are selling a car or truck that is more than four years old
  • When you register an out-of-state vehicle for the first time in California, you will need a smog check
  • Every other year for vehicles that are more than six years old

When Is a Smog Check Not Required?

  • 100% electric-powered vehicles do not need a smog check
  • Motorcycles do not need a smog check
  • Got a classic car? Vehicles that are model-year 1975 and older do not require a smog check
  • Vehicles six model years and newer do not require a biennial Smog check
  • Selling your car? Cars that are four model years and newer do not require a change-of-ownership Smog check
  • Diesel-powered trucks that are model year 1997 and older
  • Diesel-powered trucks with a gross vehicle weight rating of more than 14,000 pounds


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OUR REVIEWS

 (31 Reviews)
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I can’t say enough great things about this shop. Paul and Berj are both incredibly friendly and great at keeping you in the loop. They let you know the ballpark price and don’t BS you. After I was rear ended I initially went to the other party’s insurance company’s preferred shop and was told that my car was totaled. Brought the car to Superior and their quote was less than half for MORE work done than the original shop was going to perform. These guys literally saved me thousands and I’ll be bringing my car back here for everything.

, 09/30/2022

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