Do I need a STAR smog check?

If your DMV renewal notice says "Smog certification required at a STAR station," you must use a STAR-certified station. Corona Express Smog is STAR certified and can perform that inspection.

What is the difference between STAR and regular smog?

A STAR station has been certified by the California Bureau of Automotive Repair (BAR) for meeting higher accuracy and reliability standards. Some vehicles are directed to STAR-only stations by the DMV.

How long does a smog check take in Corona?

Most smog checks at Corona Express Smog are completed in about 15 minutes. No appointment is needed and walk-ins are welcome during business hours.

Do you accept walk-ins?

Yes. No appointment is necessary at our Corona location. Drive in any time during business hours and we will smog your vehicle, usually in 15 minutes or less.

Do I need a smog check for a change of ownership?

Yes, California law requires a valid smog certificate when selling or transferring a vehicle. The seller is responsible for providing a smog check within 90 days before the sale.

About Corona Express Smog

Q: Do you send the smog certificate to the DMV?

Yes. Once your vehicle passes, we electronically transmit your smog certificate directly to the California DMV, so you do not need to mail anything.

Corona Express Smog has been serving the Corona community since August 2003. For over two decades, we have provided fast, reliable smog inspections at our location on 6th Street. Our goal from day one has been simple: get you in, tested, and back on the road as quickly as possible.

STAR-Certified Station

We are certified as a STAR smog station by the California Bureau of Automotive Repair (BAR). This means we meet the state’s highest standards for inspection accuracy and reliability. Whether your DMV notice requires a STAR station or you simply want a thorough, trustworthy inspection, we have you covered.

The STAR program was created by the BAR to identify smog check stations that meet enhanced performance standards. Only stations that consistently demonstrate high-quality testing and low failure-to-identify rates earn STAR certification. As a STAR-certified station, Corona Express Smog is authorized to perform all types of smog inspections, including those required by the California DMV for directed vehicles.

What We Do

We are a test-only smog check station. That means we focus exclusively on emissions testing — we do not perform repairs. This keeps our process straightforward and free from any conflict of interest. Our services include:

DMV renewal smog checks
Change of ownership certifications
Out-of-state vehicle inspections
Diesel smog testing (trucks and passenger vehicles)
STAR-directed test-only inspections
Gross polluter certification

Whether you drive a gasoline-powered sedan, a diesel truck, or a hybrid vehicle, our certified technicians have the equipment and expertise to handle your smog inspection efficiently. We use the latest OBD-II and BAR-97 emissions analyzers to ensure accurate results every time.

Quick, No-Hassle Service

Most smog checks at our station take about 15 minutes. Walk-ins are always welcome — no appointment is needed. We accept cash, credit cards, and debit cards, and we electronically transmit your smog certificate directly to the DMV so you do not have to mail anything.

We understand that your time is valuable. That is why we keep wait times short and the process simple. Drive in, get tested, and drive out with your certificate — it is that easy. Our team works hard to make every visit a smooth experience.

We also offer a discount smog coupon to help keep costs down. Check our current pricing or contact us with any questions.

Why Choose Corona Express Smog

Choosing the right smog station matters. Here is why thousands of Corona residents trust us with their smog inspections:

Over 20 years of experience — We have been in business since 2003 and have performed tens of thousands of smog inspections.
STAR certified — We meet the highest state standards for testing accuracy and reliability.
Test-only station — No conflict of interest. We test your vehicle and give you honest results.
Fast turnaround — Most tests take about 15 minutes with no appointment required.
Affordable pricing — Competitive rates with a discount coupon available.
Convenient location — Easy to find on 6th Street near the 91 Freeway in Corona.