American Smog

Yes. American Smog Inc is STAR certified with the California Bureau of Automotive Repair, so it can test vehicles the DMV directs to a STAR station, including gross polluters.

No. American Smog Inc is licensed as a Test & Repair station. This station can run your smog test and, if the vehicle fails, diagnose and repair it in the same shop.

American Smog Inc is open Monday 7:30 AM to 5:30 PM; Tuesday 7:30 AM to 5:30 PM; Wednesday 7:30 AM to 5:30 PM; Thursday 7:30 AM to 5:30 PM; Friday 7:30 AM to 5:30 PM; Saturday 9 AM to 1:30 PM. Closed Sunday. Hours can change on holidays, so call ahead if you are cutting it close.

Yes. American Smog Inc accepts walk-ins, so you can drive in without booking ahead.

American Smog Inc accepts Credit Card, Debit Card, NFC/Contactless.

Google lists the following accessibility features at American Smog Inc: wheelchair accessible entrance, wheelchair accessible parking.

American Smog Inc has held a BAR smog license since 2014. You can verify the license status at bar.ca.gov.

American Smog Inc 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) 422-6555 for a quote.

American Smog Inc does not take online bookings here, but walk-ins are welcome. Call (707) 422-6555 to check the wait.

Staff at American Smog Inc speak English.

Bring the car, your registration or DMV renewal notice, and a way to pay. Most smog checks take 15 to 30 minutes, and most visits are closer to 20.

Because American Smog Inc is a Test & Repair station, it can diagnose and repair the problem in the same shop, then run the free retest within 30 days. If the repair bill is steep, California's Consumer Assistance Program covers up to $1,200 of emissions repairs for qualifying owners.

The closest alternatives in Fairfield are California Smog Llc (0.6 mi) and Hi Tech Smog (0.7 mi). Both are listed further up this page with their ratings and hours.