Diablo  AmeriSmog

We are STAR certified and licensed to perform a smog check on any vehicle. The STAR program was designed by the state to identify the vehicles that are most likely to have high emissions. These vehicles are directed to STAR stations which are continuously monitored by the state to insure that both the station and the technicians are the most qualified to perform smog checks.

What will you do till the time your car is being tested?

Go through some latest editions of some popular magazines, grab a soda from the fridge or help yourself with a hot coffee. You can also use the free WiFi.





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+1.(925) 284-1988

3364 Mount Diablo Boulevard, Lafayette, CA, United States

STAR Certified

SMOG Station


Monday - Saturday : 09:00 AM - 05:30 PM

Sunday                   : 10:00 AM - 04:00 PM

We are closed on the following Holidays:

New Years Day
4th of July
Thanksgiving Day
Christmas Day

Close early on:

Memorial Day - 3 pm
Labor Day - 3 pm
Halloween - 3 pm
Christmas Eve - 3 pm
New Years Eve - 3 pm

Worried that your car might not pass? If your car fails its smog test we will provide one free retest within 90 days. You can have your free retest done at our DIABLO AmeriSmog location.