Achieving CARB Compliance
STEP-BY-STEP GUIDE
The Clean Truck Check, officially known as the Heavy-Duty Inspection and Maintenance (HD I/M) Regulation, is a program established by the California Air Resources Board (CARB) to ensure that heavy-duty vehicles maintain properly functioning emissions control systems throughout their operational life. This regulation applies to nearly all diesel and alternative fuel heavy-duty vehicles operating on California's public roads and highways, regardless of their registration state.
01
Register Your Truck(s)
with CARB Online
Register Online at:
-
Log in & update your truck’s status
-
Upload emissions compliance documents if required
Need Help? Contact Us:
02
Get Tested &
Fix Any Issues
We perform a
Clean Truck Check with:
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On-board diagnostics (OBD) for newer trucks
-
Opacity Smoke Test (J1667) for 2010 & older trucks
If your truck fails, we diagnose and repair the issues—no extra hassle.
03
Submit Your Compliance Certificate
-
Submit results via their portal for official certification
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Fleet operators may need to update records
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Keep a copy of your compliance certificate for inspections
🚨
Failure to submit compliance can result in fines or registration holds
CARB Compliance Services
TESTING, REPAIR, AND CERTIFICATION
Schedule a CARB Test:
1
Emissions Testing for
2012 & Older Diesel Engines
-
Smoke Opacity Testing:
Measures particulate emissions (PM). -
Visual Inspection:
Ensures emissions control components are present and functional. -
Mobile & Onsite Testing:
We test at your location or one of our facilities. -
Repairs & Recalibrations:
Address compliance failures to ensure your vehicle meets CARB standards.
2
Emissions Testing for
2013 & Newer Diesel Engines
-
OBD System Scan:
Reads emissions data to detect compliance issues. -
Smoke Opacity Testing (If required):
Ensures exhaust emissions remain within CARB’s limits. -
Mobile & Onsite Testing:
We test at your location or one of our facilities. -
Repairs & Recalibrations:
Fix compliance failures to ensure certification.
3
Emissions Testing for
Fleet Operators
-
Scheduled Testing & Tracking:
We manage testing schedules and track compliance for your entire fleet. -
Regulatory Support & Consulting:
Provide guidance on CARB regulations and compliance strategies. -
Mobile & Onsite Testing:
We test at your location or one of our facilities. -
Repairs & Recalibrations:
Address compliance failures across your fleet to maintain operational efficiency.
Benefits of Our CARB Services
01.
Industry
Leaders
With 15+ years of experience in CARB compliance, CDS, SoCal ensures accurate and efficient testing backed by deep regulatory expertise.
02.
One Stop
Compliance
We provide complete compliance solutions by testing, repairing, and certifying your trucks in a single visit.
03.
Mobile & On-Site
Service
Our mobile units come to you, minimizing downtime and keeping your fleet running smoothly.
04.
California Statewide
Service
Serving all of California, we provide fast, reliable emissions testing wherever your fleet operates.
05.
Trusted By
Fleets
Major fleet operators rely on our proven track record to maintain seamless emissions compliance.