Home › Guides

Smog Check Guides

Straight answers on requirements, cost, exemptions, and what to do if your car fails — written from California Bureau of Automotive Repair and DMV program rules.

California Smog Check Requirements: The Complete Guide

Which California vehicles need a smog check, how often, and where the rules come from — registration renewal, ownership transfer, and initial registration explained.

How Much Does a Smog Check Cost in California?

What a California smog check actually costs: the state certificate fee, typical inspection prices, and financial help if your car fails.

Which Vehicles Are Exempt From Smog Check in California?

Full breakdown of California's smog check exemptions: permanent exemptions by model year and fuel type, plus the newer-vehicle fee-instead-of-test exemptions.

STAR Certified Smog Stations Explained

What STAR certification means, why some California drivers are required to use a STAR station, and how to tell if your vehicle is one of them.

My Car Failed Smog Check: What to Do Next

Steps to take after a failed California smog check: diagnosis, repair options, retesting, and financial assistance through the state's Consumer Assistance Program.

Test-Only vs. Test-and-Repair Smog Stations: What's the Difference

Why California has smog stations that only test and can't repair, and how to tell which type a station is before you go.