US Smog Check
“Great customer service from Tony , he was the only one I had to talk to and job was done in 15 min!”
Best Car Inspection & Emissions Testing in Chino, CA
15 stations listed · 13 in Chino · 8 open weekends · 12 rated 4.5+ · 1 shows a license
Data verified October 16, 2026
Tri Auto
“To our great surprise, we witnessed professional excellence with incredible humility, combined with honesty and civility, which is unparalleled and second to none.”
Aamco Transmissions & Total Car Care
“Rick and the Team are awesome and Honest rare to find Lucky me.”
Chino Autotech Inc.
“They told me it would take 45 min to an hour, but only took 30 minutes to complete.”
WSC Auto Center
“Awesome shop got our truck fixed in a few hours when a prior shop had our truck for days and couldn't.”
A-1 Auto Expert
“I went without a reservation, but the service was fast and friendly.”
Listed for drivers in and around Chino, CA, these 15 shops carry out emissions and inspection work. What each one says about its station license, hours and retest policy comes from its own website; ratings and quotes come from public reviews.
Area overview: Chino, CA
Of the 15 stations we list here, 13 are in Chino itself and 2 come from Norco (1, 8 mi) and Pomona (1, 8 mi). The stations on this page are rated from 4.2 to 5.0 across 1,759 reviews; 9 have 50 or more reviews and 12 are rated 4.5 or higher. The topics that come up most in reviews of the stations on this page are "price" and "honest". 8 are open on Saturdays and 1 on Sundays. 1 shows a license on its website; 1 lists staff certifications (ASE) and 4 have a BBB rating of A or A+. 10 have ten or more years of experience, the longest 36 years. 1 offers financing; 1 gives free estimates; 2 are family- or locally-owned and 3 list coupons or special offers. We have a website on file for 7 of the stations on this page; 4 publish a contact page; 3 list a public email and 1 takes bookings online. We count these figures across the stations on this page; distances are straight-line, and hours and prices change, so confirm the details with the station before you visit.
Which shops listed for Chino test on Saturdays or Sundays?
Weekend testing is on offer at 8 of the 15 shops. Bear in mind that a failure on a Saturday usually waits for parts on Monday, which is an argument for testing midweek if you can.
ACE Smog
“Alex is always willing to help when family and friends need to get the smoke check done on their vehicles.”
Smog Zone
“Ok, came back again for another smog in and out in less then 20min, clean and friendly place, will definitely go here all the time.”
Sergio's Auto Repair & Tires
“Had problems with my vehicle and his tech ician found the problem and repaired my vehicle.”
Avant-Garde Automotive
“The head tech and owner is very knowledgeable, services is prompt and pricing are super competitive.”
Moya Auto
“I dropped it off in the morning and he had it ready for me at 1pm and my AC works great!”
12 Volts Solutions Interlock
“From our first phone call until 6 months later when I got the device removed he was such a pleasure to work with during this difficult time.”
Sontech Auto Technology
“This guy knows his stuff and takes care of his clients.”
Pomona Gear
“If you don't know how to properly build differentials with the patience and proper tools, I highly recommend that you don't touch it AT ALL and bring it to a specialists that knows what they're looking at like Pomona Gears.”
Green Smog Check
“Hard to find but it was quick and easy to get a smog check.”
Why these companies made our list
What customers say about stations in Chino
- “The service is wonderful, your in and out of there in 20 min, the owner is very nice and honest, I definitely recommend coming here to get a smog.” — customer of ACE Smog
- “Been coming here for years. Best smog shop around they get you in and out in a reasonable time.” — customer of US Smog Check
- “They fit me in right away and even when I had to run home to get a piece of paper they did not make me wait when I got back and took the car right away.” — customer of Chino Autotech Inc.
Excerpts from public reviews of the stations listed on this page.
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