Tune In Tune Up Program - San Joaquin Valley Air Pollution Control District


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. 

Through Tune In Tune Up weekend events Valley residents may be eligible to receive incentives to repair, replace, or provided directions on scrapping their high polluting vehicle.


  • The vehicles that fail the free emissions test offered at the Tune In and Tune Up events are diagnosed with an emissions related failure at the smog shop.
  • The vehicles that are found to be repairable will receive a voucher for repairs at a participating STAR Test and Repair station. Repairs can only be completed at a participating smog shops.


  • For eligible owners of 1999 and older vehicles which have been observed to have an emissions related issue at a Tune In Tune Up weekend event; opportunities are available through the Enhanced Fleet Modernization Program (EFMP) and EFMP Plus Up (Plus Up) to replace the high emitting vehicle with a newer, more fuel efficient model. Incentives range from $2,500 to $9,500 depending on the household income level, residential status in a disadvantaged community, and the type of vehicle purchased. 


1990 E Gettysburg Ave
Fresno, California 93726
United States

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