Let’s work together

HD I/M Tester Identification Numbers

IF530414 and IF530523

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Stay Compliant. Stay On the Road.

Need fast, reliable help with your Clean Truck Check (CTC) in California? Whether you're a truck owner, fleet manager, RV operator, or independent contractor, NorCal CARB Mobile makes CARB compliance easy, right at your location.

We’re a fully credentialed mobile Clean Truck Check provider serving Northern California, including Sacramento, Stockton, Modesto, the Bay Area, Chico, and surrounding regions.

📞 Call or Text:
(916) 890‑4427

📧 Email:
office@norcalcarbmobile.com

🕐 Business Hours:
Monday–Saturday: 7:00 AM – 6:00 PM
Sunday: By Appointment Only

📍 Service Areas:
We provide mobile diesel emissions testing and CARB Clean Truck Check services throughout Northern California. Some of our most frequently visited cities include:

  • Sacramento

  • Stockton

  • Modesto

  • Fairfield

  • Roseville

  • Redding

  • Oakland

  • San Jose

  • Tracy

  • Chico

  • Fresno (by request)

🛠 What We Help With:

  • CARB Clean Truck Check (CTC) Testing

  • OBD Scans for 2013+ Diesel Vehicles

  • Smoke Opacity & Visual Inspections (pre-2013)

  • Mobile testing for motorhomes, fleets & single trucks

  • Full-service CTC-VIS registration & certificate uploads

  • On-site testing for RVs, box trucks, day cabs, and sleepers