From their website: "The Consumer Assistance Program’s (CAP) repair assistance option offers eligible consumers whose vehicles fail a biennial Smog Check inspection financial assistance toward emissions-related repairs at a STAR test-and-repair station. Owners of model year 1996 or newer vehicles may receive up to $1,200 in emissions-related repairs. Owners of model year 1976 through 1995 vehicles may receive up to $900 in emissions-related repairs."
This website has a great list of resources for free car repairs or free money for car repairs:
https://freecarshelp.com/government-assistance-for-car-repairs/