Valley Smog & Tags

No. Valley Smog & Tags is not STAR certified. If your DMV renewal notice says "STAR Station Required," you will need to visit a STAR certified station instead.

Yes. Valley Smog & Tags is licensed as a Test Only smog station. This station performs the smog test and issues the certificate. It does not do repairs, so a failed vehicle has to be fixed elsewhere and brought back.

Valley Smog & Tags is open Monday 9 AM to 6 PM; Tuesday 9 AM to 6 PM; Wednesday 9 AM to 6 PM; Thursday 9 AM to 6 PM; Friday 9 AM to 12 PM; Saturday 9 AM to 4 PM; Sunday 9 AM to 2 PM. Hours can change on holidays, so call ahead if you are cutting it close.

Yes. Valley Smog & Tags accepts walk-ins, so you can drive in without booking ahead.

Valley Smog & Tags accepts Cash, Credit Card.

Valley Smog & Tags has held a BAR smog license since 2024. You can verify the license status at bar.ca.gov.

Valley Smog & Tags has not published a price on SmogCheckDeals. The Bureau of Automotive Repair puts the statewide average at $69.16 as of August 2026, about $65 for a 2000-or-newer vehicle and $73 for 1999-or-older, plus the $8.25 certificate fee. Call (209) 360-2083 for a quote.

Valley Smog & Tags does not take online bookings here, but walk-ins are welcome. Call (209) 360-2083 to check the wait.

Staff at Valley Smog & Tags speak English.

Bring the car, your registration or DMV renewal notice, and a way to pay. Most smog checks take 15 to 30 minutes, and most visits are closer to 20.

Valley Smog & Tags is a Test Only station, so it cannot do the repair. You would have the work done at a repair shop, then come back for the free retest within 30 days. California's Consumer Assistance Program covers up to $1,200 of emissions repairs for qualifying owners.

The closest alternatives in Modesto are Central Valley Nissan (0.2 mi) and Smog Check Unlimited (0.3 mi). Both are listed further up this page with their ratings and hours.