- Drive Clean. Drive Legal.
Certified Mobile Clean Truck Check Services
The California Clean Truck Check (CTC) program aims to reduce pollution in California. It is enforced by the California Air Resources Board (CARB), which ensures that all diesel trucks, heavy-duty vehicles, and large diesel motorhomes comply with strict emission standards. Compliance with CARB regulations is essential for any vehicle operating on state roads. Failure to adhere to the program can result in registration holds by the DMV, fines, and potentially costly downtime.
If you are looking to keep your trucks legal, Mobile CTC is the best mobile clean truck testing company in town. Our Clean Truck Check services have made it easy for our clients to stay compliant. The best part of our services is that we come to your place for an on-site clean truck check and testing.
Our team offers certified clean truck testing in California, prioritizing flexibility and efficiency. Whether managing a single truck, a diesel motorhome, or an entire fleet, we make it simple and convenient to stay CARB compliant.
- About Us
Same-Day and After-Hours Mobile Clean Truck Check Service
At Mobile CTC, trust is built on experience and certification. Our CARB-certified testing in Orange County ensures every diesel truck, RV, and fleet vehicle meets California emissions standards. Each inspection is performed by trained professionals who understand the nuances of the Clean Truck Check program, giving fleet owners peace of mind.
We have worked with fleets of all sizes across the state, from single trucks to multi-vehicle operations. Our team’s expertise guarantees accurate testing, reliable reporting, and compliance guidance tailored to your specific vehicles. With Mobile CTC, you’re not just getting a service, you’re gaining a partner in California CARB compliance services.
Every vehicle is treated with care and precision. Certified protocols are followed at every step, and our mobile approach brings the lab to your location. Accuracy, professionalism, and regulatory knowledge make us one of the best mobile CTC companies in the state.
- Certified & CARB Compliant
- No shop visits, no downtime.
- Same Day Testing
- After-Hours Support
- Affordable & Honest
- Fleet-Friendly
- We’ll retest at no extra cost
- We Serve All 4 Counties
- California CARB compliance services
Affordable Mobile Clean Truck Check Testing Services
Maintaining compliance doesn’t have to break your budget. Our affordable mobile clean truck check testing services provide cost-effective solutions. We have expert solutions for fleets of all sizes. Our transparent pricing makes sure there are no hidden fees. Optional retesting is handled efficiently at no extra charge.
Convenience is a key part of our service. We offer same-day and after-hours truck testing in California, so inspections fit seamlessly into your operations. There’s no need to drive trucks to a shop or pause fleet operations for hours. Our team comes directly to you.
Flexible scheduling and on-site testing reduce downtime while keeping your fleet fully compliant. The affordable mobile clean truck checks by us will make regulatory compliance straightforward, reliable, and stress-free.
- California CARB compliance services
From Registration to Testing, We Handle Your Entire Compliance Process
Our mobile clean truck check process is designed to make CARB clean truck check mobile testing efficient, reliable, and stress-free. From registration to on-site inspections, we handle every step so your vehicles meet California emissions standards without disrupting your operations.
- Vehicle Registration Assistance: We guide truck, RV, and heavy-duty vehicle owners through the Clean Truck Check system.
- On-Site Emissions Testing: Certified testers perform on-site clean truck check testing, including OBD inspections and smoke opacity tests, right at your location.
- Full Fleet Support: Whether it’s a single diesel truck or an entire fleet, we ensure every vehicle complies with CARB regulations.
- Flexible Scheduling: Our same-day mobile clean truck check service and after-hours testing options minimize downtime.
- Fast Reporting & Retests: Inspection results are delivered promptly, and retesting is handled efficiently if required.
- Map
Mobile CTC Testing Across Multiple Counties
We proudly provide convenient, certified mobile clean truck testing services across Southern California, bringing our expertise directly to your location. Our team helps heavy-duty trucks, RVs, and full fleets stay compliant with California CARB standards, saving you time and hassle. We serve a wide area, ensuring that fleet operators and individual vehicle owners alike have access to reliable, affordable, and professional testing services. Our coverage includes:
Los Angeles County
Orange County
Riverside County
San Bernardino County
Covina, CA
- Legal Assurance
Is Your Truck Ready for California’s Clean Truck Check?
Staying compliant with California’s Clean Truck Check (CTC) program isn’t just a legal requirement. It’s essential for keeping your trucks on the road and your business running smoothly. CARB is increasing enforcement across the state. And any heavy-duty truck operating in California must meet strict emissions standards to avoid penalties, delays. It is important to save your truck from being flagged as a high-emitter.
- Avoid costly fines and downtime that come from missed tests or failed inspections
- Protect your DMV registration from holds or enforcement actions
- Maintain smoother operations with no sudden roadside compliance interruptions
- Prevent breakdowns by catching emissions and engine issues early
- Contribute to cleaner air in California, supporting healthier communities
- Build trust and credibility with clients who depend on reliable, regulation-ready vehicles
- What We Do
On-Site Truck Inspections That Save Time and Hassle
01. Schedule Your Test
A quick call is all it takes. Choose a time that fits your day, and our team handles the rest. No waiting rooms, no shop visits. Convenient mobile on-site service in California.
02. We Come to You
Our certified technicians arrive on-site and perform a complete Clean Truck Check inspection. It ensures your truck, RV, or fleet meets California CARB compliance standards requirements.
03. Accurate Testing, Clear Results
We provide mobile diesel truck & RV emissions testing with precise results you can rely on. No guessing. No confusion. Just honest, straightforward reporting.
04. Get Certified & Stay Road-Ready
Once your vehicle passes, you receive your official Clean Truck Check certification on the spot. You’re legal, compliant and ready to keep moving without interruption.
Skip the shop. Forget the wait. We bring testing for heavy-duty vehicles straight to your site—whether you’re running one rig or a full fleet. No downtime, no disruption. Our mobile team gets your heavy-duty vehicles tested, certified, and back on the road fast
- Fleet Compliance
Ready to Pass Your Clean Truck Check Emissions Test?
To pass the Clean Truck Check, your truck must have its VIN registered, the Check Engine light off, and no emissions-related trouble codes. All readiness monitors should be complete. The battery must be connected and functional. If OBD data was recently cleared, complete the required drive cycles before testing.
- VIN registered in CTC-VIS database
- Check Engine / MIL light must be off
- No emissions-related trouble codes stored
- All readiness monitors must be complete
- The battery must be connected and functional
- Complete drive cycles if OBD data was recently cleared
- Verified Reviews
See Why Fleets and Owners Choose Mobile CTC.
They came right to us, did the test fast, and got my truck certified that same day. No waiting, no stress. If you need to stay legal, call these guys
Sandra M., Fleet Manager
We’ve got 22 trucks, and Mobile CTC made testing easy. They came to our lot and handled everything. No confusion, just results. Big help!
Carlos R., Truck Owner
Very quick and easy. They came to our site, tested the truck, and sent the paperwork the same day. We’ll use them again for sure
David L., Trucking Company Manager
It was the first time I did this type of test. Their explanations were apparent and simple. Friendly and on time to
Eric T., RV Owner
No waiting around. They worked with our schedule and even came out in the evening. That kind of service is hard to find.
Jasmine K., Dispatcher
- Faqs Explained
Got Questions About Clean Truck Check? We’ve Got Answers!
Not sure what’s required or how to get ready? Don’t worry, we’ve answered the most common questions below. And if you don’t see your question here, just give us a call!
What is the Clean Truck Check?
It’s an emissions testing program to ensure commercial trucks meet environmental standards.
How do I know if my truck is ready?
Make sure your VIN is registered, and the Check Engine light is off. Check if all readiness monitors are complete, and your battery is connected.
What happens if my Check Engine light is on?
Your truck won’t pass. Fix the issue and clear any emissions trouble codes before testing.
Can a dead battery affect my test?
Yes. A disconnected or dead battery can erase readiness monitor data. And you’ll need to complete drive cycles to restore it.
How long do I need to drive after clearing codes?
Several drive cycles are usually required. This includes distance travelled, engine run time, and warm-ups.
Who do I call if I’m still unsure?
Call us at 626-222-9142! Our team can guide you step by step so your truck passes smoothly.
