Mobile CARB Clean Truck Testing Throughout California
Heavy-Duty Vehicle Compliance & Inspection Services β Trusted for CARB Clean Truck Check (HD I/M)
Get your heavy-duty vehicle fleet compliant with California Air Resources Board rules through mobile inspections, fast documentation, and expert support.Get your heavy-duty vehicle fleet compliant with California Air Resources Board rules through mobile inspections, fast documentation, and expert support.
Why Choose Us
Mobile inspection service β We come to you in Northern California, minimizing downtime and logistic delays.
Institutional-level regulatory expertise β We operate under the same standards set by CARBβs Clean Truck Check (HD I/M) program. California Air Resources Board
Rapid turnaround for certification β We streamline paperwork, test scheduling, and reporting so you stay on the road and in compliance.
Fleet-scale support β From a single heavy-duty truck to large fleets, we tailor services, document readiness, and help you avoid registration or operational holds.
What is Clean Truck Check (HD I/M)?
The Clean Truck Check (CTC) program is CARBβs heavy-duty inspection and maintenance program for trucks and tractors that operate in California. California Air Resources Board
Key elements include:
Semi-annual inspection requirements for applicable vehicles. California Air Resources Board
Reporting through CARBβs CTC-VIS online system. California Air Resources Board
Compliance schedules and fact sheets that define which vehicles are subject and when. California Air Resources Board
This translates into concrete obligations for fleet owners: inspect, test, document, reportβand avoid registration blocks.
How We Help You
On-site inspections: We bring certified testers and equipment to your location.
Documentation & submission: We prepare and file the CARB-required reports via CTC-VIS.
Compliance calendar: We track your fleetβs deadlines (semi-annual, annual) so you never miss a cycle.
Avoid DMV holds: We monitor program eligibility, registration block triggers, and provide mitigation strategies.
Program Scope & Eligibility
According to CARB:
The fact sheets list which heavy-duty vehicles are included and when inspections are required. California Air Resources Board
Failure to comply can result in registration holds via SB 210 and other CARB enforcement tools. California Air Resources Board
We assist you in determining whether a vehicle is subject and ensuring it meets all the criteria.
Our Promise
Full transparency: We show you exactly what CARBβs Clean Truck Check program demands and how we meet those demands.
Efficiency: On-site mobile assessments reduce downtime and mobilization overhead.
Scalability: Whether you operate 1 truck or 500, we have the process, tools, and data workflows to support you.
Data-driven compliance: We integrate checklists, inspection outcomes, and document submissions into a digital dashboard for your fleet.
Ready to Get Compliant?
Contact us today to schedule your mobile inspection or request a free fleet-compliance audit. Donβt let CARB compliance become a roadblock to your businessβstay ahead with NorCal CARB Mobile.
Frequent Questions from in the Field
Q-Is it burdensome to have to leave your car at the shop?
A- We Come to You - Office, Truck Stop or Project Location
Pricing: OBD $75 | Smoke Opacity $250 | RV/Motorhome $300
Prices can vary on fleet size and requests like midnight on Chistmas but pretty much we try our best.
OBD-$75
OVI Smoke $250
Motorhomes- $300
No travel fees.
First retest is free if within 30 days of failed test.

