Have a car that won’t pass smog because of an emissions related problem?

The District offers a FREE car emissions test at Tune In, Tune Up events throughout the San Joaquin Valley. These free Saturday events occur in various locations throughout the Valley all year long.


While Tune In Tune Up weekend events have been cancelled in response the COVID-19 pandemic, the District continues to offer Valley residents the opportunity to have their vehicles repaired through the Drive Clean in the San Joaquin program through an online or telephone voucher approval process. In order to participate, please call program partner Valley Clean Air Now at 1-800-806-2004 or complete the online interest form.

You can view program flyers below:


The San Joaquin Valley is home to a large number of older cars, many of which do not meet state emissions standards. Tune In & Tune Up helps vehicle owners take voluntary action to improve air quality by subsidizing expensive smog repairs.

Vehicle Repairs

The vehicles that are found to be repairable will receive a voucher for free repairs at a participating STAR Test and Repair station. Repairs can only be completed at participating smog shops.

If you are a San Joaquin Valley resident and you think your vehicle is in need of smog related repairs, bring it to the next scheduled Tune In & Tune Up in your area for a free emissions test.

Statewide Scrappage Program

The Consumer Assistance Program (CAP) is administered by the Bureau of Automotive Repair (BAR) and is designed to help improve California's air quality. A consumer may retire a qualified vehicle and receive $1000. Consumers meeting low income eligibility requirements may receive $1500. In addition, CAP provides qualified consumers who own a vehicle that cannot pass its biennial (every other year) Smog Check inspection up to $500 in financial assistance toward emissions-related repairs.

For more information, visit BAR’s website You can also obtain a copy of the application, or call BAR at (866) 272-9642.

For answers to Frequently Asked Questions about CAP click here

Events & Information

Due to ongoing concerns with COVID-19/Coronavirus, the Tune-In Tune-Up weekend events have gone virtual.

To participate, visit our program partner: https://valleycan.org/virtual-titu