Services

At Titan Compliance, we make it simple for your fleet to stay compliant with California’s Clean Truck Check (HD I/M Program). Our fully mobile service eliminates downtime, missed deadlines, and costly fines — all while keeping your trucks on the road where they belong.

Clean Truck Check Certifications (OBD Testing)

We perform full Onboard Diagnostic (OBD) tests on heavy-duty vehicles to meet CARB’s Clean Truck Check requirements. Using state-certified diagnostic equipment, we scan your fleet on-site, record emissions data, and ensure your vehicles pass the latest standards.

  • CARB-compliant OBD testing
  • On-site service — no driver downtime
  • Real-time reporting and immediate results



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A person is using a tablet to check the engine of a car.

Opacity Testing (for older trucks)

For older diesel vehicles not fully covered by OBD testing, opacity testing is required to verify smoke levels meet state regulations. Our trained technicians perform these visual emissions tests on-site using certified opacity meters.

  • Diesel smoke opacity tests for pre-OBD vehicles
  • CARB-compliant testing protocols
  • Meets required visual inspection standards


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A man in a yellow vest is holding a tablet in front of a truck.

CARB Portal Submissions

We don’t just perform the tests — we handle the paperwork too. Titan Compliance submits all required data directly to CARB’s Clean Truck Check portal, ensuring your certifications are filed accurately and on time.

  • Full submission management
  • VIN-based reporting for your entire fleet
  • Immediate submission confirmations for your records


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Compliance Reporting & Documentation

You’ll receive organized reports for every vehicle we test, fully documented and ready for audits or inspections. We maintain detailed records of your compliance history so you're always protected.

  • Organized reports for every truck
  • Full documentation provided after every visit
  • VIN-based recordkeeping for easy reference


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A man is standing in front of a truck looking at a clipboard.

Fleet Compliance Scheduling & Reminders

Staying compliant means staying on schedule. Titan Compliance tracks your fleet’s deadlines and proactively schedules visits to ensure you never miss a CARB deadline.

  • Automated reminders before deadlines
  • Proactive scheduling based on fleet compliance cycles
  • One less thing your fleet manager has to worry about


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A bunch of trucks are parked in front of a warehouse.

100% Mobile Service

We Come to You!

We eliminate downtime by bringing our full testing and compliance operation directly to your fleet yard. No shop visits, no driver scheduling conflicts, and no lost productivity.

  • Fully mobile service for all of California
  • Testing performed on your schedule
  • Service designed for fleets of all sizes


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A row of white trucks are parked in a parking lot.

Why Fleet Owners Choose Titan Compliance:

  • 100% mobile testing — your fleet stays on-site
  • Full Clean Truck Check compliance management
  • CARB submissions fully handled by our team
  • No missed deadlines, no costly fines, no downtime
  • Fleet discounts available for larger operations

Ready to schedule your fleet?

Why Us?

Titan Compliance - We handle your Clean Truck Check. You stay compliant. You stay moving.