Heavy Duty Trucking Logo
MenuMENU
SearchSEARCH

CARB Program to Help Small Fleets, Owner-Operators with ZEV Transition

The California Air Resources Board and transportation nonprofit Calstart launched Cal Fleet Advisor, a free assistance program to help small fleets and owner-operators make the transition to zero emissions trucks.

CARB Program to Help Small Fleets, Owner-Operators with ZEV Transition

Cal Fleet Advisor is a new program to assist small fleets and owner-operators with a transition to ZEV technology in California.

Photo: CARB/Calstart/HDT Illustration

2 min to read


The California Air Resources Board and transportation nonprofit Calstart recently launched Cal Fleet Advisor, a free assistance program to help small fleets and owner-operators make the transition to zero emissions trucks. The program, Cal Fleet Advisor, is focused on assisting smaller businesses and independent owner-operators.

Applications for the program are now being accepted. Drayage owner-operators are encouraged to apply now, CARB noted, since the requirements for their transition toward zero emissions start in 2024.

Ad Loading...

"The transition to zero-emissions transportation — and to cleaner air — means working collaboratively with the owners and operators who provide a critical service to California’s economy by transporting goods across the state,” said CARB Chair Liane Randolph in a release.

The program will prioritize smaller businesses and independent owner-operators, with a focus on disadvantaged communities that, according to a CARB press release, often have challenges accessing government assistance programs.

CARB said other services provided will include document tracking assistance and liaison support as needed.

Ad Loading...

Program Participation

CARB said Cal Fleet Advisor was launched to provide personalized guidance in understanding and meeting the requirements, including getting information about funding and other assistance that will be made available.

Participants in Cal Fleet Advisor will receive assistance through an assigned program expert that will serve as a single point of contact for questions and needs. That expert will provide an individualized action plan that will provide information about approved technology and funding options for fleet owners and single operators.

CARB Advanced Clean Fleets Rule

In April, CARB approved the Advanced Clean Fleets rule, which puts in place a phased-in transition to accomplish the California governor’s goal of fully transitioning the trucks that travel across the state to zero-emissions technology by 2045.

Under the new rule, some vehicle types where zero-emissions technology is currently available must start the transition by 2024. Other vehicle types have later deadlines, and options to transition a percentage of their fleets to meet required zero-emissions milestones.

To learn more about Cal Fleet Advisor application requirements and how to receive personalized assistance, visit the Cal Fleet Advisor website.

More Fuel Smarts

Four men in suits on the National Mall with giant video screen showing capitol building in the background
Equipmentby Deborah LockridgeJuly 10, 2026

EPA Proposal Could Ease 2027 Truck Costs and Buying Uncertainty

The proposal doesn't change the tougher NOx standard, but it would revise key implementation requirements that manufacturers say have driven up costs and complicated fleet purchasing decisions.

Read More →
Illustration showing Paccar MX engine with sketch illustration of DEF fill tank in background
Equipmentby Deborah LockridgeJuly 7, 2026

Cummins, Paccar Ease DEF Derates After EPA Guidance

Updated diesel engine software gives truck operators more time to address emissions-system issues while staying compliant with EPA emissions standards.

Read More →
Illustration with wrenches in background with "Maintenance in the Messy Middle: Biodiesel" text and NACFE Run on Less logo
Maintenanceby Jack RobertsJuly 2, 2026

Maintenance in the Messy Middle Part 3: Biodiesel

Biodiesel can reduce emissions, improve fuel-system lubricity and use existing diesel infrastructure. But NACFE’s Messy Middle maintenance report says fleets must actively manage storage, cold-weather operation, filters and oil drain intervals to avoid problems.

Read More →
Ad Loading...
thermo king heavy duty trucking
SponsoredJuly 1, 2026

Enhance Fleet Performance with High-Efficiency Auxiliary Power Units

Drive sustainable cost savings while increasing driver comfort during short- and long-haul logistics operations.

Read More →
Illustration with wrenches in background with "Maintenance in the Messy Middle: Renewable Diesel" text and NACFE Run on Less logo
Maintenanceby Jack RobertsJune 29, 2026

Maintenance in the ‘Messy Middle’ Part 2: Renewable Diesel Fuel

NACFE's latest Messy Middle Powertrain Service & Maintenance report says renewable diesel gives fleets an opportunity to reduce carbon emissions without changing trucks, fueling infrastructure or maintenance practices. But technicians still need to understand several important operational differences.

Read More →
Illustration messy middle maintenance diesel with wrenches in background
Maintenanceby Jack RobertsJune 26, 2026

The Diesel Engine Enters NACFE’s ‘Messy Middle’

NACFE’s new Messy Middle Powertrain Service & Maintenance report says keeping modern diesel engines running now depends as much on software, diagnostics and data as traditional mechanical service.

Read More →
Ad Loading...
Illustration showing DEF tank and Detroit engine
Equipmentby Deborah LockridgeJune 18, 2026

DTNA Software Update Gives Truckers More Time Before DEF Derates Take Effect

The changes reflect EPA guidance aimed at reducing downtime caused by emissions-system faults while maintaining compliance requirements.

Read More →
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 Managementby Deborah LockridgeJune 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 →
Ad Loading...
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 →