Checking hours… 323 Woodside Road, Redwood CityDirections
Redwood City SmogSTAR Certified · Test Only (650) 365-7664
Redwood City · Since 2004

STAR Certified Smog Check StationTest Only

Gas, diesel and hybrid vehicles, for registration renewal, change of ownership, or registering a car brought in from out of state. No appointment necessary. $50 for vehicles 2000 and newer.

The license, in full
CertificationSTAR
License classTest Only
Testing on Woodside Road since2004
Rated4.7 from 294 reviews
Repairs we're able to sell youNone

A Test-Only license is the state's way of removing the conflict of interest. It is the entire reason the category exists.

For anything built from 2000 on, that's the whole test — we read the car's own computer. No tailpipe probe, no rollers.

4.7294 reviews on Yelp
22Years on Woodside Road
STARCertified, test‑only
NoneAppointments, ever
Test only

That isn't a limitation. It's the whole license.

A STAR Test-Only station is prohibited by the state from doing repair work. That's the whole point of the license. A shop that tests and repairs makes money when your car fails. We don't. We hand you the result, pass or fail, and that's the end of our involvement.

No repair upsell, by law

We are not licensed to do repairs. There is nothing for us to sell you.

STAR certified

We meet the state's higher performance standard, which lets us test any vehicle — including the high-polluting ones ordinary stations can't.

Since 2004

Same building on Woodside Road for 22 years.

STAR

Your DMV notice says “STAR station required”?

Then you're in the right place. About one in seven California vehicles gets directed to a STAR station at renewal — sometimes because of a past failure, sometimes just by selection. An ordinary smog station cannot certify you. We can.

Bring the notice with you.

Not our words

4.7★ from 294 reviews on Yelp.

We can't write these and we can't take them down. Themes drawn from public reviews as of August 2026.

Fast

The thing reviewers mention most is how quickly it's over.

Honestly priced

Repeatedly described as the least expensive option nearby.

The free retest is real

Customers who didn't pass the first time single it out.

Pricing

Two prices. Both are the total.

The $8.25 state certificate is inside the number, not added at the register. Same either way — pass or fail, we're paid the same.

2000 and newer
$50
Out the door · Gas, hybrid and most diesel
OBD-II computer scan

Cars built from 2000 on carry a standardized onboard computer. We read it directly, so there's no tailpipe probe and no dynamometer.

1996 – 1999
$100
Out the door · Tailpipe test required
Tailpipe test on the dyno

The state requires these to be run on a dynamometer with a tailpipe probe. It takes longer and uses more equipment, which is why it costs more.

How it goes

Three steps, and one of them is waiting.

1

Just drive up

No appointment, no booking, no phone tree. Pull into the bay on Woodside Road and we'll take you in the order you arrive.

2

We test the car

Wait in the waiting room — there's a TV, and parking is never a problem. Most people are done while they wait.

3

We file it with the DMV for you

Your certificate goes to the DMV electronically the moment you pass. In most cases you don't have to do anything else.

Come by

We're on Woodside Road.

  • Monday – Friday9:00 am – 5:00 pm
  • Saturday9:00 am – 3:00 pm
  • SundayClosed
323 Woodside Road

Redwood City, CA 94061