5320 Old Redwood Hwy Unit B

Petaluma, California 94954

101 Express Smog

"We Perform Smog Tests on ANY Vehicle!"

Need a Smog Test?

That is what we do! We are fast, efficient and capable of handling any vehicle. We specialize in Diesel and Hybrid Vehicles, RV’s and Motor-homes!


Call for an appointment at our Petaluma facility!

Take care of your shopping while we take care of your Smog Test  (707) 664-9600

Official State of California Licensed Smog Testing Center

We are a Licensed Test Only Facility

Our technicians are ASE Certified

Smog Testing on ALL Vehicles

About “101 Express Smog” Petaluma, CA

Welcome to 101 Express Smog Petaluma, your #1 test only station in the Downtown Petaluma area. We are a locally owned and operated business and are proud to offer fast friendly service in a professional shop 6 days per week.

We offer all types of Smog Testing including Gross Polluter, Change of Ownership, Diesel Vehicles and Initial California Registration testing.

While appointments are gladly accepted, they are never required.  Come in, enjoy our free Wi-Fi and friendly service.  We'll get you on your way in about 15 minutes.  We are located within walking distance of Old Redwood Hwy in the shopping plaza across from Orchard Supply Hardware.  If you have some shopping to do, we will take care of your Smog Test and then we call you when your vehicle is ready.


Services at this location

✓ Regular Smog

✓ Test Only

✓ Change of Ownership

✓ Document Transfer

✓ Out of State Vehicle Check

(Initial California Check)

✓ New Tags Electronically Transmitted to DMV

Contact Express Smog

101 Express Smog

5320 Old Redwood Hwy

Petaluma, CA 94954

(707) 664-9600


Monday - Saturday 8:30 am - 5:30 pm

Have questions?

See our Frequently Asked Questions about Smog Checks or feel free to

Call Us @ (707) 664-9600

Map - Location

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