The Clean Truck Check program, part of the California Air Resource Board's (CARB) Truck and Bus Regulation, is transforming how heavy-duty vehicles operate in California.  Starting this year, periodic emissions testing becomes mandatory for all heavy-duty diesel vehicles, replacing the Periodic Smoke Inspection Program (PSIP).  This program aims to improve air quality and ensure compliance across the state.

From commercial trucks to diesel motorhomes, ensuring your fleet or vehicle meets Clean Truck Check requirements is critical to avoiding costly fines, DMV registration holds, or interruptions to your operations. 

Similar to the California Smog Check program for light-duty vehicles, heavy-duty diesel vehicles that operate in California with a GVWR of more than 14,000 pounds are now subject to periodic emissions testing. When trucks fail to meet emissions standards, they are cited for repair. This new CARB diesel emissions regulation is aimed at improving public health by reducing air pollution throughout the Golden State.

In January, if your vehicles were identified as high emission producers by roadside emissions monitoring equipment, you received a Notice to Submit to Testing (NST) to pass a CARB compliance test within 30 days.

The Clean Truck Check program applies to all heavy-duty diesel vehicles operating in California with a gross vehicle weight rating (GVWR) of over 14,000 pounds, including:

Commercial trucks and fleets
Diesel motorhomes (recreational vehicles)
Agricultural vehicles and equipment
Out-of-state trucks operating on California public highways

If your vehicle meets these criteria, you must register, test, and report compliance to continue operating legally in California.

We're here to help with Clean Truck Check reporting, testing, data uploads, and more. Call us at (559) 579-1450.

To stay compliant and avoid disruptions, fleet owners and operators must:

1. Pay Compliance Fees: Register each vehicle in the Clean Truck Check Vehicle Inspection System (CTC-VIS) and pay the $30 annual compliance fee.

2. Perform Emissions Testing: Complete one emissions test per vehicle before your DMV registration renewal deadline.

3. Report Results: Upload your test results to the CTC-VIS portal to receive your compliance certificate.

4. Transition to New Testing Schedule: In 2025, bi-annual emissions testing is mandatory for most heavy-duty vehicles.

Starting in January 2025:

PSIP Ends: The Periodic Smoke Inspection Program will sunset, and the Clean Truck Check will fully replace it.

Increased Testing Frequency: Most vehicles will require two emissions tests per year.

DMV Registration Holds: Non-compliant vehicles will face DMV registration holds until testing and reporting requirements are met.

Advanced Emission recommends completing testing early to stay ahead of deadlines and prevent delays.

As a CARB-certified Clean Truck Check testing facility, Advanced Emission provides comprehensive services to keep your fleet compliant and running smoothly. Here's how we help:

Certified Testing Services
We perform emissions tests in compliance with CARB standards.

Effortless Data Uploads
Our team handles all testing data uploads to the CTC-VIS, ensuring seamless reporting.

Onboard Diagnostics
We offer advanced diagnostics to identify and address potential compliance issues before they become a problem.

Comprehensive Assessments
Our experts provide thorough assessments to prepare your vehicles for testing and compliance.

Repairs and Maintenance
From DPF cleaning to part replacements, we ensure your vehicles pass testing and stay operational.

Whether you manage a fleet of trucks, operate diesel motorhomes, or run agricultural vehicles, Advanced Emission is your trusted partner for compliance.

Did you know that diesel motorhomes are subject to Clean Truck Check requirements?  Many recreational vehicle (RV) owners may not realize their vehicles fall under CARB's regulations if they meet the GVWR threshold of 14,000 pounds or more.  Like commercial trucks, motorhomes must undergo emissions testing and report compliance through the CTC-VIS portal. Advanced Emission provides the same expert services for motorhome owners, ensuring a smooth and hassle-free process.

Navigating CARB's Clean Truck Check program can feel overwhelming, but Advanced Emission makes it simple.  From testing to reporting, our team ensures your vehicles meet every requirement.

Get Started Today:

1.  Schedule Your Testing:  Call (559) 579-1450 to book Clean Truck Check testing for your fleet or motorhome.
2.  Prepare for Reporting:  Have your vehicle or fleet details and VINs ready for registration in the CTC-VIS system.
3.  Stay Ahead of Deadlines:  Complete testing and reporting to avoid fines or DMV registration holds.

Advanced Emission is here to ensure compliance for 2025 and beyond.

Visit the CARB website for helpful information.

Download detailed fact sheets and answers to Frequently Asked Question (FAQs) from CARB. 

Contact us for testing and reporting assistance at (559) 579-1450.