A California Smog Check usually takes about 30 minutes, although many straightforward newer vehicles can be completed faster when there isn't a wait.
California's Bureau of Automotive Repair recommends allowing about 30 minutes for the inspection. At San Juan Auto Smog in Fair Oaks, customers frequently tell us they were in and out in roughly 15–20 minutes when there wasn't a line.
The actual time depends partly on what you're driving.
Most 2000-and-newer vehicles use California's onboard diagnostic inspection system. The inspection also includes required visual and functional checks. Pre-2000 vehicles generally require a different inspection that includes tailpipe emissions testing.
That's one reason an older vehicle can take longer than a newer commuter car.
For most 2000-and-newer vehicles at San Juan Auto Smog, no appointment is necessary. Walk-ins are welcome during business hours.
For 1999-and-older vehicles, RVs, vans and heavy trucks, we recommend booking ahead so we can have the appropriate space and equipment ready.
You don't have to sit at the shop while we complete the inspection.
If you're in a hurry, you're welcome to leave your vehicle with us and pick it up later.
If you live or work nearby, we may also be able to give you a ride to or from the shop, depending on how busy we are and staff availability. Call ahead or ask us when you arrive.
Learn more about Smog Checks at San Juan Auto Smog →
Bottom line: Plan on roughly 30 minutes for the inspection itself, but don't let a tight schedule stop you from getting it done. Drop the vehicle off and come back for it later if that's easier.
San Juan Auto Smog is located at 4701 San Juan Ave in Fair Oaks and is open seven days a week.