This shop's smog licence isn't current with the state. Confirm with the shop before you rely on this listing.
Price
Call for price
Hours
Open Mon–Sat
Station type
Test Only
Appointments
Walk-ins welcome
Hours
- Monday
- 9 AM – 5:30 PM
- Tuesday
- 9 AM – 5:30 PM
- Wednesday
- 9 AM – 5:30 PM
- Thursday
- 9 AM – 5:30 PM
- Friday
- 9 AM – 5:30 PM
- Saturday
- 9 AM – 5:30 PM
- Sunday
- Closed
Good to know
Languages
English
Payment
Cash, Credit Card
What to expect at A Smog Test Only
A Smog Test Only is licensed by the Bureau of Automotive Repair as a Test Only smog station in Petaluma. It runs the inspection and issues the certificate but does no repairs. It is STAR certified, so it can test vehicles the DMV directs to a STAR station, including gross polluters.
Walk-ins are welcome. Most smog checks take 15 to 30 minutes, and most visits are closer to 20.
What to bring
Your registration or DMV renewal notice
It says whether the car needs a STAR station.
The car, with the check engine light off
On a 2000-or-newer car, a lit check engine light fails the test on its own.
A way to pay
The $8.25 state certificate is paid on top of the test when the car passes, unless the station's price or coupon includes it.
What if I fail?
- A Smog Test Only doesn't do repairs, so the car goes to a repair shop and comes back for the retest.
- Each station sets its own retest price, so ask before the first test.
- BAR's Consumer Assistance Program pays up to $1,450 toward emissions repairs for income-eligible owners.
660 Lakeville St G, Petaluma, CA 94952
Get directions →Hours
- Monday
- 9 AM – 5:30 PM
- Tuesday
- 9 AM – 5:30 PM
- Wednesday
- 9 AM – 5:30 PM
- Thursday
- 9 AM – 5:30 PM
- Friday
- 9 AM – 5:30 PM
- Saturday
- 9 AM – 5:30 PM
- Sunday
- Closed
Also listed on
Other stations near A Smog Test Only
Super Sonic Smog
322 Lakeville St
Northbay Automotive & Tire Center
929 Petaluma Blvd So
East Washington Smog
532 East Washington St
Empire Automotive
412a 416 Madison Street
Bosch Automotive
821 Petaluma Blvd N
Nearby cities in Sonoma County
Questions about A Smog Test Only
A Smog Test Only is open Monday 9 AM to 5:30 PM; Tuesday 9 AM to 5:30 PM; Wednesday 9 AM to 5:30 PM; Thursday 9 AM to 5:30 PM; Friday 9 AM to 5:30 PM; Saturday 9 AM to 5:30 PM. Closed Sunday. Hours can change on holidays, so call ahead if you are cutting it close.
A Smog Test Only accepts Cash, Credit Card.
A Smog Test Only has held a BAR smog license since 2021. You can verify the license status at bar.ca.gov.
A Smog Test Only has not published a price on SmogCheckDeals. The Bureau of Automotive Repair puts the statewide average at $69.16 as of August 2026, about $65 for a 2000-or-newer vehicle and $73 for 1999-or-older, plus the $8.25 certificate fee. Call (707) 789-9430 for a quote.
A Smog Test Only does not take online bookings here, but walk-ins are welcome. Call (707) 789-9430 to check the wait.
Staff at A Smog Test Only speak English.
The closest alternatives in Petaluma are Super Sonic Smog (0.4 mi) and Northbay Automotive & Tire Center (0.5 mi). Both are listed further up this page with their ratings and hours.
How we get this data: BAR licenses and STAR status, Google hours and ratings, coupons published by the station.
Verify this station’s license and STAR standing at bar.ca.gov.
Own this shop? Add photos
BAR field office: Hercules • Licensed since 2021