Trusted Experts in Clean Truck Check Compliance

CARB’s Clean Truck Check (CTC) program aims to improve air quality across California by reducing harmful diesel emissions. Unlike earlier regulations, the CTC applies to nearly all diesel trucks and many other diesel-powered vehicles operating on California roads. CarbTech is here to guide you through the new requirements—ensuring your vehicles are properly registered, tested, and compliant. For your convenience, our mobile testing team comes to you—anywhere in the state.

Emissions Testing for

2012 & Older Diesel Engines

Diesel trucks from 2012 or older must pass emissions tests under CARB’s Clean Truck Check. Without OBD systems, these vehicles are tested using smoke opacity and visual inspections.

What's Included?

Smoke Opacity

Measures particulate emissions (PM)

Visual Inspection

Confirms emissions control components are present and functional

Mobile & Onsite Testing

We test at your location or one of our facilities

Who Needs This Test?

Diesel trucks model year 2012 or older without OBD systems operating in California.

Testing Frequency

Semi-annual (twice per year) as required by CARB

Schedule a Test

Emissions Testing for

2013 & Newer Diesel Engines

For diesel trucks model year 2013 and newer, CARB mandates On-Board Diagnostics (OBD) testing to track emissions performance. These vehicles are equipped with OBD systems, enabling digital emissions monitoring rather than traditional smoke opacity testing.

What's Included?

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

Who Needs This Test?

Any 2013 or newer diesel truck subject to CARB’s HD I/M program requirements.

Testing Frequency

Testing required twice per year starting in 2025 (quarterly testing begins in 2027 for certain vehicles).

Schedule a Test

Emissions Testing for

Fleet Operators

Staying CARB compliant across a large fleet can be complex. Our Fleet Compliance Management service simplifies tracking, scheduling, and maintaining compliance for all your vehicles.

What's Included?

Scheduled Testing & Tracking

Reads emissions data to detect compliance issues

Regulatory Support & Consulting

Ensures exhaust emissions remain within
CARB’s limits

Mobile & Onsite Testing

We test at your location or one of our facilities

Who Needs This Test?

Fleet managers responsible for multiple diesel vehicles, and businesses requiring compliance monitoring.

Testing Frequency

Ongoing Support: Tailored to Your Fleet’s Specific Requirements

Schedule a Test

Get a Quote

Reach out to us by email, one of our team members will reach back shortly.

Get In Touch

Locations

Victorville

Los Angeles

Riverside

Anaheim

Contact

760-713-2760

daniellomelibiz@gmail.com

Opening Hours

Mon - Fri

7:00 am – 8:00 pm

Saturday

9:00 am – 7:00 pm

Sunday

10:00 am – 6:00 pm

Trusted Experts in Clean Truck Check Compliance

What's Included?

Smoke Opacity

Measures particulate emissions (PM)

Visual Inspection

Confirms emissions control components are present and functional

Mobile & Onsite Testing

We test at your location or one of our facilities

Who Needs This Test?

Diesel trucks model year 2012 or older without OBD systems operating in California.

Testing Frequency

Semi-annual (twice per year) as required by CARB

What's Included?

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

Who Needs This Test?

Any 2013 or newer diesel truck subject to CARB’s HD I/M program requirements.

Testing Frequency

Testing required twice per year starting in 2025 (quarterly testing begins in 2027 for certain vehicles).

What's Included?

Scheduled Testing & Tracking

Reads emissions data to detect compliance issues

Regulatory Support & Consulting

Ensures exhaust emissions remain within CARB’s limits

Mobile & Onsite Testing

We test at your location or one of our facilities

Who Needs This Test?

Fleet managers responsible for multiple diesel vehicles, and businesses requiring compliance monitoring.

Testing Frequency

Ongoing Support: Tailored to Your Fleet’s Specific Requirements

Get a Quote

Get In Touch

Locations

Contact

Opening Hours

Ensures exhaust emissions remain within
CARB’s limits

Ensures exhaust emissions remain within
CARB’s limits