California doesn't have inspections, only biennial smog checks, so they are all smog check certified people. They are supposed to do a visual check, and check functional inspection of the vehicle's check engine light, ignition timing, exhaust gas recirculation system, fuel evaporative system, and gas cap (they put the gas cap on a jig and apply vacuum).
They no longer do a tailpipe sniffer car on rollers test on OBD equipped cars. Just do the visual, and run the OBD test. New cars purchased in California don't have to be tested for 6 years, but you pay a Smog Abatement Fee on your registration.
A Guy