Auto Chek Centers is the largest Test-Only smog check company in Southern California.

Serving Los Angeles and Orange County areas since 1984, we can test and certify most vehicles, including gross polluters, motorhomes and diesel vehicles. 

We perform more smog tests in our six locations than any other company in California.  Our "Pass or Free Retest" policy, assures you of an honest and unbiased test.  Additionally, should your vehicle not pass, we provide you with the test results showing where the vehicle did not pass, including any available trouble codes set on your on-board computer.

As a licensed Registration Service, Auto Chek Centers can process most California renewals and title transfers, issuing renewal tags onsite.  

In addition, we are able to proces duplicate title requests, issue replacement registration cards, stickers and license plates.*
*Auto Chek Centers, Inc. is a licensed vehicle registration service, we are not a branch of the DMV.  
Not all transactions that can be completed at the DMV can be completed by Auto Chek Centers.