Northridge Auto Repair Technicians
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
Discover More About Exhaust Repair Services At Northridge Auto Repair Technicians in Northridge
Emissions And Smog Testing
Discover more about Smog Check, Testing & Repair
Inspections & Emissions
OUR REVIEWS
Chris Ong, 09/15/2025I have an old 2001 Toyota Highlander with an evap system problem. It failed the smog check. I found this shop after I searched the web. After speaking to Art on the phone I decided to bring my Toyota in. To make a long story short, I dropped my Toyota, the next day Art called me back to explain the fix and gave me a quote. I went ahead with the repair and a few days later I picked it up. I drove it for a couple of days but the leak was still there. It turned out there was another valve that had to be replaced. Art took care of it with no hassle. When I picked it up (on a Saturday) all the engine monitors were complete. Smog check also passed. I’m simply a very happy camper. Based on this experience I won’t hesitate becoming a return customer. :)
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