Price
Call for price
Hours
Open Mon–Sat
Station type
Test Only
Z1 Smog Test Only is a STAR certified test-only smog check station at 14841 Dillow Street Unit #b, Westminster, CA 92683. Open Mon–Sat.
Hours
- Monday
- 9 AM – 5 PM
- Tuesday
- 9 AM – 5 PM
- Wednesday
- 9 AM – 5 PM
- Thursday
- 9 AM – 5 PM
- Friday
- 9 AM – 5 PM
- Saturday
- 9 AM – 4 PM
- Sunday
- Closed
Hours from public business listings. Call to confirm before you go.
What to expect at Z1 Smog Test Only
Z1 Smog Test Only 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.
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?
- Z1 Smog Test Only doesn't do repairs, so the car goes to a repair shop and comes back for the retest.
- BAR's Consumer Assistance Program pays up to $1,450 toward emissions repairs for income-eligible owners.
Been to Z1 Smog Test Only?
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14841 Dillow Street Unit #b, Westminster, CA 92683
Get directions →Hours
- Monday
- 9 AM – 5 PM
- Tuesday
- 9 AM – 5 PM
- Wednesday
- 9 AM – 5 PM
- Thursday
- 9 AM – 5 PM
- Friday
- 9 AM – 5 PM
- Saturday
- 9 AM – 4 PM
- Sunday
- Closed
Hours from public business listings. Call to confirm before you go.
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Questions about Z1 Smog Test Only
Z1 Smog Test Only is open Monday 9 AM to 5 PM; Tuesday 9 AM to 5 PM; Wednesday 9 AM to 5 PM; Thursday 9 AM to 5 PM; Friday 9 AM to 5 PM; Saturday 9 AM to 4 PM. Closed Sunday.
Verify this station’s license and STAR standing at bar.ca.gov.
Listing updated October 3, 2026.
Own this shop? Add photos
BAR field office: Santa Ana • Licensed since 2017