When it comes to environmental regulations, California usually leads the nation. But with more cars than any other state -- and more older models, thanks to the mild climate -- the state's smog problem has been a tough nut to crack. A recent report found the biennial smog test program rife with fraud and mismanagement. Now, the state is cracking down.
Amy Standen reports for member station KQED in San Francisco.
9(MDAxODEwNTYyMDEyNTM4NDM3NDE1NWI3Yw001))