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About the Tune In & Tune Up Program

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 help improve air quality by subsidizing expensive smog repairs.

Thanks to the sponsorship of the San Joaquin Valley Air Pollution Control District, Valley CAN hosts Tune In & Tune Up events throughout the San Joaquin Valley, providing residents with free emissions tests to determine whether their vehicle qualifies for free repairs at a local STAR certified smog shop.

Tune In & Tune Up Program Impact

Since 2005, 60,000 low-income disadvantaged community residents have come to Tune In & Tune Up smog events throughout the San Joaquin Valley, resulting in repairs to 20,000 high-emitting vehicles. Approximately half of these vehicles were unregistered before undergoing necessary repairs to become smog compliant.

Biweekly Tune-in & Tune-up events provide free emissions tests for 400-525 vehicles 60% of vehicles fail emissions tests and receive repair vouchers up to $850 94% of our customers reside within disadvantaged communities
(SB 535 zip codes)
75% of vouchers are redeemed at STAR-certified smog shops 54% of customer vehicles are unregistered 98% of unregistered vehicles complete DMV registration after attending our events and completing repairs

Results

The program efficiently converts program funds into quantifiable emissions reductions.

$1 million in Tune In & Tune Up spending produces 1,150 repairs resulting in approximate annual reductions of:

65 tons CO 8.5 tons HC 7 tons NOx

Cost-effectiveness for all three criteria pollutant gasses is approximately $10,000 per ton.Tune In & Tune Up has been shown to be among the most cost-effective methods to reduce vehicle emissions in California.

How it Works

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.

If your vehicle fails our emissions test, Valley CAN will give you a $500 voucher for emission-related repairs at a local smog STAR-certified smog shop. The $500 can only be used for diagnostics, smog testing, smog repair work, and certification.   We only care about your emissions test and only collect vehicle/participant data for internal reporting.