Price
Call for price
Hours
Open Mon–Sat
Station type
Test Only
Appointments
Walk-ins welcome
Hours
- Monday
- 9:30 AM – 5 PM
- Tuesday
- 9:30 AM – 5 PM
- Wednesday
- 9:30 AM – 5 PM
- Thursday
- 9:30 AM – 5 PM
- Friday
- 9:30 AM – 5 PM
- Saturday
- 9:30 AM – 5 PM
- Sunday
- Closed
Good to know
Languages
English
Payment
Cash, Credit Card
What to expect at Union City Smog Check
Union City Smog Check is licensed by the Bureau of Automotive Repair as a Test Only smog station in Union City. 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?
- Union City Smog Check 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.
33365 Mission Blvd, Union City, CA 94587
Get directions →Hours
- Monday
- 9:30 AM – 5 PM
- Tuesday
- 9:30 AM – 5 PM
- Wednesday
- 9:30 AM – 5 PM
- Thursday
- 9:30 AM – 5 PM
- Friday
- 9:30 AM – 5 PM
- Saturday
- 9:30 AM – 5 PM
- Sunday
- Closed
Also listed on
Other stations near Union City Smog Check
Nearby cities in Alameda County
Questions about Union City Smog Check
Union City Smog Check is open Monday 9:30 AM to 5 PM; Tuesday 9:30 AM to 5 PM; Wednesday 9:30 AM to 5 PM; Thursday 9:30 AM to 5 PM; Friday 9:30 AM to 5 PM; Saturday 9:30 AM to 5 PM. Closed Sunday. Hours can change on holidays, so call ahead if you are cutting it close.
Union City Smog Check accepts Cash, Credit Card.
Union City Smog Check has held a BAR smog license since 2015. You can verify the license status at bar.ca.gov.
Union City Smog Check 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 (510) 441-9800 for a quote.
Union City Smog Check does not take online bookings here, but walk-ins are welcome. Call (510) 441-9800 to check the wait.
Staff at Union City Smog Check speak English.
The closest alternatives in Union City are Gill Smog Check STAR Station (0.3 mi) and Bay Star Auto Care (0.7 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 2015