Cedar Smog

  • Test only

16546 Ceres Ave Suite 1, Fontana, CA 92335

Price

Call for price

Hours

Open Mon–Sat

Station type

Test Only

Cedar Smog is a test-only smog check station at 16546 Ceres Ave Suite 1, Fontana, CA 92335. Open Mon–Sat, 9 AM–5 PM.

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 – 5 PM
Sunday
Closed

Hours from public business listings. Call to confirm before you go.

What to expect at Cedar Smog

Cedar Smog runs the inspection and issues the certificate but does no repairs. Its STAR certification is currently suspended in the BAR registry, so it cannot test DMV-directed vehicles until that is restored.

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?

  • Cedar Smog 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.
Repair assistance (CAP)

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16546 Ceres Ave Suite 1, Fontana, CA 92335

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Questions about Cedar Smog

Cedar Smog 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 5 PM. Closed Sunday.

Verify this station’s license and STAR standing at bar.ca.gov.

Listing updated November 1, 2026.

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BAR field office: Riverside • Licensed since 2019

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