Heavy Duty Trucking Logo
MenuMENU
SearchSEARCH

CARB Extends Clean Truck Check Reporting Deadline

As the Dec. 31 deadline looms for owners of trucks operating in California to get them registered in the Clean Truck Check database, the California Air Resources Board announced it is extending the reporting deadline to Jan. 31, 2024.

December 26, 2023
CARB Extends Clean Truck Check Reporting Deadline

A demonstration of the California heavy-duty truck smog-check apparatus at the Port of Los Angeles.

Photo: CARB

2 min to read


As the Dec. 31 deadline looms for owners of trucks operating in California to get them registered in the Clean Truck Check database, the California Air Resources Board announced it is extending the reporting deadline to Jan. 31, 2024.

Clean Truck Check, previously called the Heavy-Duty Inspection and Maintenance Program, is supposed to ensure that heavy-duty vehicles operating in California are well-maintained and repaired quickly when needed to reduce emissions. It covers nearly all non-gasoline vehicles with a gross vehicle weight rating over 14,000 pounds operating in the state.

Ad Loading...

As HDT reported previously, the program is being implemented in three phases. The first phase started Jan. 1, 2023, with the deployment of Remote Emissions Monitoring Devices. These monitor the exhaust emissions of passing heavy-duty vehicles and flag potential high emitters.

Phase 2 of Clean Truck Check

The phase for which the deadline is being extended is Phase 2, which started Oct. 1. It requires vehicle owners who are subject to the program to enter their vehicles in CARB’s Clean Truck Check database and pay an initial annual compliance fee of $30 per vehicle by Dec. 31 (now Jan. 31).

After that deadline, all trucks driving in California will need proof of compliance to continue operating in the state.

Ad Loading...

Phase 3 of Clean Truck Check will require heavy-duty vehicle owners to conduct periodic emissions testing. This is similar to California’s Smog Check program for cars. Periodic testing begins in 2024 and applies to all compliance deadlines after July 1, 2024.

Information on How to Comply with Clean Truck Check

To access the reporting database to complete reporting requirements, visit the California Clean Truck Check, Vehicle Inspection System (CTC-VIS) Portal.

For additional information and guidance regarding the Clean Truck Check reporting requirements, training, fact sheets, and other helpful information are available on the Clean Truck Check Program Page.

You can also find training videos on the reporting page posted in English, Spanish, and Punjabi. There are seven short training module videos for specific reporting topics, as well as the "Question and Answer” forum from a previously held reporting training webinar on Nov. 3, 2023.

CARB staff recommend watching a recording of the training prior to logging into the database and completing fleet reporting requirements.

Ad Loading...

In addition, CARB has scheduled an online training webinar on the CTC-VIS reporting database for Jan. 9,  1:30 p.m. – 5:00 p.m. (Pacific Time)

More Fuel Smarts

Illustration of exhaust aftertreatment system on an AI-inspired blue background and a green fuel pump nozzle in the foreground.
Maintenanceby Deborah LockridgeJune 15, 2026

New Agentic Predictive Maintenance Report Demonstrates How Degraded Aftertreatment Systems Waste Fuel

Questar analyzed a large mixed-class fleet and discovered it was wasting as much as $30 in fuel per vehicle, per day, because of mechanically degraded aftertreatment systems.

Read More →
Amazon electric cargo bike on New York City street
Fleet ManagementJune 15, 2026

New York City's Microhub Project is Delivering Results

Trucking, last-mile delivery companies, and environmental advocates like what they are seeing so far with New York's microhub program.

Read More →
Red Kenworth truck pulling Paper Transport trailer
Fuel Smartsby Deborah LockridgeJune 2, 2026

Lessons Learned About Alternative Fuels: Start Small, Stay Flexible

Practical advice on adopting alternative fuels and ZEVs from HDT's 2026 Top Green Fleets, from renewable diesel and natural gas to electric trucks.

Read More →
Ad Loading...
Composite image of different angles of the Kempower charger
Fuel Smartsby News/Media ReleaseMay 29, 2026

Kempower Adds Flex EV Charger to Help Support Transition to Megawatt Charging

The Kempower Mega Satellite Flex has both a CCS and MCS connector, allowing operators to serve both types of heavy-duty vehicles.

Read More →
White Hino Le electric tractor on show floor
Equipmentby News/Media ReleaseMay 26, 2026

Hino Adds Electric Class 6/7 Truck

Hino says the Le Series is an important step in the company's efforts to reduce environmental impact and support its customers’ sustainability goals.

Read More →
Sigma Powertrain BEV transmission.
Fuel Smartsby Jack RobertsMay 26, 2026

Can Multi-Speed EV Transmissions Solve Heavy Trucking’s Biggest Electric-Vehicle Problems?

A startup called Sigma Powertrain believes purpose-built multi-speed gearboxes can boost efficiency, reduce battery size and improve gradeability for heavy-duty battery-electric trucks.

Read More →
Ad Loading...
Red Hendrickson e-axle at ACT Expo booth
Equipmentby News/Media ReleaseMay 22, 2026

Hendrickson Debuts Electraax E-Axle for Medium-Duty Trucks

Developed with Driventic, Hendrickson's new integrated e-axle is designed to improve efficiency, reduce weight, and extend range in Class 6-7 EV applications.

Read More →
Fueling trucks.
Fuel SmartsCover Storyby Deborah LockridgeMay 18, 2026

50 Ways Fleets Can Cut Fuel Costs Now — Without Buying New Trucks

Fuel savings don’t come from one big change. They come from dozens of small ones. Here’s how leading fleets are stacking gains across drivers, routing, maintenance, and more.

Read More →
Collage of HDT Top Green Fleets with logo
Fuel Smartsby Deborah LockridgeMay 18, 2026

Top Green Fleets 2026: How Fleets Are Reducing Emissions in the Real World

What works in sustainable trucking today? Heavy Duty Trucking's Top Green Fleets are finding practical ways to cut fuel use, reduce emissions, and keep freight moving.

Read More →
Ad Loading...
Tesla Semi electric truck on display at ACT Expo
Fuel Smartsby News/Media ReleaseMay 13, 2026

California Launching $1 Billion Electric Truck Rebate Program

CARB says the California Clean Fuel Reward program will begin offering point-of-sale rebates of up to $120,000 for electric commercial trucks starting June 26.

Read More →