WATCH: Jay Leno reveals why he's backing major auto legislation in deep blue state

Former late-night talk show host and auto enthusiast Jay Leno is backing a California legislative proposal to allow an exception for classic cars to the state’s biennial and title transfer smog check, and it is gaining significant bipartisan support. 

Senate Bill 712, introduced by Republican Sen. Shannon Grove, would exempt "collector motor vehicles" that are "at least 35 years old" from the air quality check. Leno noted that it applies to a small number of cars, as many collector cars are driven very little on the road anyway.