Price
Call for price
Hours
Open Mon–Sat
Station type
Test Only
Appointments
Walk-ins welcome
Hours
- Monday
- 9 AM – 6 PM
- Tuesday
- 9 AM – 6 PM
- Wednesday
- 9 AM – 6 PM
- Thursday
- 9 AM – 6 PM
- Friday
- 9 AM – 6 PM
- Saturday
- 9:30 AM – 2:30 PM
- Sunday
- Closed
Good to know
Languages
English
Payment
Cash, Credit Card
What to expect at USA Smog
USA Smog is licensed by the Bureau of Automotive Repair as a Test Only smog station in Mission Viejo. 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?
- USA Smog 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.
25721 Obrero Dr Unit #d, Mission Viejo, CA 92691
Get directions →Hours
- Monday
- 9 AM – 6 PM
- Tuesday
- 9 AM – 6 PM
- Wednesday
- 9 AM – 6 PM
- Thursday
- 9 AM – 6 PM
- Friday
- 9 AM – 6 PM
- Saturday
- 9:30 AM – 2:30 PM
- Sunday
- Closed
Also listed on
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23672 Via Fabricante
Auto Care Experts
23662 Via Fabricante Ste A
Mike's Advanced Auto Care
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Nearby cities in Orange County
Questions about USA Smog
USA Smog is open Monday 9 AM to 6 PM; Tuesday 9 AM to 6 PM; Wednesday 9 AM to 6 PM; Thursday 9 AM to 6 PM; Friday 9 AM to 6 PM; Saturday 9:30 AM to 2:30 PM. Closed Sunday. Hours can change on holidays, so call ahead if you are cutting it close.
USA Smog accepts Cash, Credit Card.
USA Smog has held a BAR smog license since 2007. You can verify the license status at bar.ca.gov.
USA Smog 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 (949) 380-7635 for a quote.
USA Smog does not take online bookings here, but walk-ins are welcome. Call (949) 380-7635 to check the wait.
Staff at USA Smog speak English.
The closest alternatives in Mission Viejo are Action Automotive and Saddleback Cars (0.1 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.
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BAR field office: San Diego • Licensed since 2007