Senate Bill 712, known as “Leno’s Law,” would exempt collector cars whose model is 35 years or older from California’s smog check law.

Legendary late-night talk show host Jay Leno is visiting the California State Capitol on Tuesday to help push a proposed rolling exemption from smog checks for classic cars.

Entertainer and classic car enthusiast Jay Leno is at the Capitol Tuesday to advocate for a law exempting classic cars from ...