For many drivers, California requires a SMOG inspection every other year for registration renewal. Your DMV notice will tell you whether a certification is required and whether you need a STAR station.
Many gasoline-powered, hybrid, and alternative-fuel vehicles eight model years old or newer are generally exempt from the biennial renewal inspection requirement. A smog abatement fee may apply instead of the physical test.
In many private-party sales, the seller is responsible for providing a valid SMOG certification. Some newer vehicles may fall under a change-of-ownership exemption window, so the exact rule matters.
A STAR station is a BAR-certified SMOG station that can inspect vehicles that DMV directs to STAR locations. If your notice says STAR is required, do not assume every station can handle your test.
A failed test usually means there is an emissions-related problem that must be addressed before the vehicle can pass. The next step may be repairs, a retest, a referee appointment, or checking whether BAR assistance programs apply.
Many qualifying vehicles being registered in California for the first time after coming from another state will need a SMOG inspection. DMV requirements and exemptions still depend on the vehicle and transaction.
Timing varies by station, vehicle type, and whether the test goes smoothly. For many routine inspections, the process is fairly quick, but it is still smart to allow extra time if DMV deadlines are close.
Pricing varies by station and vehicle. In Concord, drivers often look for a local coupon to lower the cost, and certificate fees may be listed separately from the inspection price.