Beginning July 19, California’s Bureau of Automotive Repair (BAR) may fail motor vehicles during their “smog check” inspection if they are found to have software modifications (tunes) not provided by the original equipment manufacturer (OEM) or approved through a California Air Resources Board (CARB) Executive Order (EO).

Read more: https://www.semasan.com/legislative-alerts/california/california-smog-inspectors-check-illegally-tuned-vehicles