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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 Wieland's Auto Repair in Bryan

Discover more about Smog Check, Testing & Repair
Undercar Services: Maintenance

Drivers throughout the Northwest Ohio area rely on Wieland's Auto Repair for trusted, top-quality auto repair and maintenance. It's the name locals turn to when they want the job done right.

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Auto Repair Near You

Wieland's Auto Repair
210 Paige St
Bryan, OH 43506
Working Hours

    Monday
    Tuesday
    Wednesday
    Thursday
    Friday
    Saturday
    Sunday

    8:00AM - 5:00PM
    8:00AM - 5:00PM
    8:00AM - 5:00PM
    8:00AM - 5:00PM
    8:00AM - 2:00PM
    Closed
    Closed

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Wieland's Auto & Marine Repair, LLC
4125 E Kirk Rd Unit 18
Port Clinton, OH 43452
Working Hours

    Monday
    Tuesday
    Wednesday
    Thursday
    Friday
    Saturday
    Sunday

    Appointment Only
    Appointment Only
    Appointment Only
    Appointment Only
    Appointment Only
    Closed
    Closed

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Customer Testimonials

2015 Equinox timing chain slipped during start. Ryan got it right in for inspection and supplied pictures in email showing metal in oil along with bent valves. Matt took a look and suggested a remanufactured engine instead of used as these engines are known for oil consumption and timing chain issues. The remanufactured engine has upgraded high tension rings and more holes in piston for drainage. Their experience and reasonable quote convinced me to this route. They pulled the old one out and put the new one with no code issues. They tested it for 10 miles and it have had no issues to date. Very satisfied with service and good folks.

Engine Maintenance, near Bryan, Ohio
, 12/04/2025

"Matt did exactly what he said he would do in repairing my boat trailer bearings and installing new bearing buddy's. I'm out of town--- so he picked up trailer-completed work in timely fashion and returned my boat to same location for just a small charge. Thank you again Matt and I'll definitely use your business for my auto + boat needs!

Tires, near Bryan, Ohio
, 05/13/2024

I went in for an oil change and left knowing our family had found the perfect service repair shop. High level quality of care towards the vehicle and the customer. This new customer is happy!

I had a new engine for my Ram 1500 installed here. Very good service and no problems at all. Good people here!

Since 2009, Wieland's Auto Repair has proudly provided Bryan drivers with fast, affordable auto services-from oil changes and AC repairs to full engine work. We use advanced tools and quality parts to ensure every job is done right.