At Mobile CARB Clean Truck Check Pros, we’re California’s trusted experts for mobile smog inspections. Our mission is simple — to make emissions testing quick, reliable, and hassle-free. With certified technicians, advanced equipment, and a commitment to customer satisfaction, we bring the test to you — saving you time, stress, and long DMV lines.
- Licensed & CARB-Certified Technicians
- Convenient On-Site Testing
- Fast & Fully Compliant Emission Reports
- Pass or Don't Pay
5+ Years
We are growing with happy customers
Fully Licensed
Certified Expert
Transparent Pricing
100% Satisfaction
Why California Businesses Choose Us
Our certified CARB technicians provide on-site diesel smoke testing with real-time certification. You pay only if you pass, so there’s no risk — just fast, guaranteed compliance.
We Come to You
We travel anywhere in California — to your yard, warehouse, construction site, or driveway. Avoid costly downtime, fuel, and transport. Keep your vehicles earning while we handle the paperwork.
Instant CARB Database Certification
Once your vehicle passes, we upload results immediately to California’s CARB system. Your DMV hold clears in real time, letting you drive legally the same day.
Pass or Don't Pay - No Surprises
You only pay if your diesel truck passes California's emission standards. Fail the test? No charge. We'll provide expert guidance on repairs needed to pass next time. No risk, all reward.
How It Works: 3 Simple Steps
Reach us at (424) 423-0749 or request a quote online.
Provide your vehicle type, location, and preferred time — we’ll confirm and book your test within 24–48 hours (usually within 2 hours of contact).
A certified CARB emission tester arrives at your site with official testing equipment.
Each test takes 15–30 minutes and your vehicle never leaves your property.
After passing, we upload certification to CARB’s official database instantly.
Your DMV hold is lifted immediately — pay only after passing and get back on the road that same day.
Instant CARB certification
Get your vehicle certified on the spot with fast, compliant testing.
Zero Downtime
Keep your trucks on the road with quick, mobile testing that fits your schedule.
No Pass, No Payment
You only pay when your vehicle passes—no hidden fees, no risk.
Marcus T.
Got Questions?
We've Got Answers.
Everything you need to know about CARB Clean Truck Check diesel emission testing in Southern California — before you book.
The CARB Clean Truck Check is a California Air Resources Board (CARB) mandated diesel emission testing program for heavy-duty vehicles. If you own or operate a diesel-powered truck, bus, RV, or commercial vehicle with a Gross Vehicle Weight Rating (GVWR) of 14,001 lbs or more and it’s registered in California, you are required by law to pass Clean Truck Check testing before renewing your DMV registration. The program measures diesel smoke opacity to ensure your vehicle meets California’s emission standards for particulate matter and NOx. If your DMV renewal notice flags an emission compliance requirement, a CARB Clean Truck Check is what you need.
We provide mobile CARB Clean Truck Check testing throughout Southern California, so you don’t need to find a fixed testing facility near you — we come to your location. Whether you’re at a commercial yard, warehouse, construction site, or residential driveway, we travel to you and complete the test on-site. We serve Los Angeles, Long Beach, Glendale, Santa Clarita, Pomona, Torrance, Pasadena, El Monte, Downey, Inglewood, West Covina, Norwalk, Burbank, Compton, Carson, and all surrounding Southern California cities. Appointments are scheduled 24–48 hours out. Call (424) 423-0749 to book.
If your vehicle fails California diesel emission testing, you pay nothing — our fee only applies to passing tests. We’ll provide a detailed explanation of why your truck failed and expert recommendations on repairs needed to pass. Common failure reasons include faulty EGR valves, clogged diesel particulate filters (DPF), injector problems, or excessive engine wear. After repairs, schedule a retest. We’re here to help you pass, not penalize failures.
Immediately. When your diesel vehicle passes Clean Truck Check testing, we upload certification to California Air Resources Board’s official compliance database in real-time — while still at your location. The DMV registration system updates instantly, clearing any holds on your vehicle registration. You can verify compliance immediately through CARB’s online portal or renew your DMV registration the same day. No waiting 3–5 business days like traditional testing facilities.