Resources

Select a topic for helpful information about how to maintain a more efficient vehicle and learn about how the California Smog Check Program is improving the air we breathe!

Industry Links for California

Helpful information of interest to drivers in California including state-specific program details.

Gasoline-powered vehicle smog check tips

Tips for Gasoline Powered Vehicles

Learn more about how to pass your smog check on gasoline-powered vehicles.

Tips for Diesel Vehicles

Read special tips to help your diesel vehicle pass its smog check.

Tips for Hybrid Vehicles

Learn when smog checks are required for hybrid vehicles.

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