<Li> AB 57 created a financial assistance program . </Li> <Li> AB 208 provided funding for low - income assistance and vehicle retirement </Li> <Li> AB 1492 exempted vehicles less than four years old from the biennial smog check </Li> <Li> AB 42 exempted vehicles manufactured before 1974 from smog check testing . Also required that vehicles 30 years old or older be exempt from the Smog Check program starting in 2004 . AB 42 established a brief rolling chassis exemption until it was repealed in 2006 where 1976 and newer vehicles were subjected to emission testing . </Li>

What does it mean to smog a car