Automotive Fleet
MenuMENU
SearchSEARCH

It's Time to Instill Urgency with CARB's Advanced Clean Fleets Rule

Some fleet managers are shrugging off compliance with ACF, believing legal challenges will make it go away. Avoiding the regulation is not an option.

Chris Brown
Chris BrownAssociate Publisher
Read Chris's Posts
May 23, 2024
An electric cargo van and a Class 3 cab chassis sit in a parking lot facing each other.

ACF applies to any vehicle doing business in California from a Class 2b cargo van and larger. EVs such as the Mullen Three (right) can be eligible for up to $45,000 in HVIP rebates.

Photo: Chris Brown

4 min to read


At a recent industry event, I spoke with a fleet manager who runs a national sales and service fleet with a sizable footprint — over 100 units — in California. I asked how he was approaching compliance with the Advanced Clean Fleets (ACF) rule set forth by the California Air Resources Board (CARB).

ACF applies to any vehicle doing business in California that is Class 2b (a standard cargo van) or larger.

Ad Loading...

"The electric cargo vans don't work for my duty cycles," he said. "They don't have the range."

Yeah, I responded, that's an issue with commercial EVs today. But how are you approaching compliance? "I heard the rule won't stand up in court," he said, "and what are they going to do, come after me?"

This attitude is particularly pervasive with large private sector fleets, or high-priority fleets as CARB calls them. However, avoiding the regulation altogether is not a viable option.

The rule has many facets depending on fleet size and type, with two compliance pathways. To keep it simple, we'll stick to this fleet manager's situation, which is fairly common.

For California's government and public sector fleets, the timeline set forth by ACF to acquire zero-emission vehicles (ZEVs) kicked in this year. They're knee-deep in compliance considerations — from figuring out their charging infrastructure needs to sourcing the EVs.

Ad Loading...

ACF Compliance Starts Jan. 1 for Private Fleets

Compliance for our fleet manager and other high-priority private fleets starts on Jan. 1, 2025. Choosing the ZEV Milestones path, 10% of a fleet of box trucks, cargo vans, package delivery vehicles, and yard trucks must be ZEV on that date.

Our fleet manager must have 10 electric cargo vans in operation by Jan. 1. As of this writing, that's in 184 days. Initial compliance reporting began on Feb. 1. And yes, CARB could come after you for non-compliance — to the tune of $10,000 per vehicle per day.

The fleet manager may have a case for an exemption or extension. Still, the application requires documentation showing that ZEVs cannot replace ICE vehicles of that type to satisfy the intended duty cycle. Applications for infrastructure extensions must be completed at least one year before the next applicable compliance date.

ZEVs are expensive, but California offers serious grant money under the state's Hybrid and Zero-Emission Truck and Bus Voucher Incentive Project (HVIP).

Fleets can access a $45,000 voucher for a CARB-approved Class 3 electric truck and $60,000 for a Class 4 truck at the point of sale. Stacked with the federal $7,500 credit, the capitalized costs of these EVs can be reduced by as much as 75% and could be far lower than acquiring equivalent ICE vehicles.

Ad Loading...

Like compliance, there are deadlines for accessing HVIP grants — they sunset for high-priority fleets on Dec. 31, 2024.

ACF: What You Need to Do Right Now

If this is turning into a Holy Cow moment for you, there are things you should do right now:

  • Access the resources and know-how of associations such as NAFA and AFLA.

  • Gain advice from public-sector fleets in California, most of which have already established some form of infrastructure and have EVs on the road.

  • Contact your fleet management company or one of the numerous organizations that help fleets electrify.

  • Contact your California utility or utilities to understand your power and infrastructure needs.

  • Start the application process for an HVIP grant.

  • Contact CARB immediately and explain your situation and better understand your compliance.

  • Attend the Fleet Forward Tour stop at the Port of Los Angeles on June 12. We’ll be incentives and compliance, and plenty of resources will be there to help you.

To the fleet manager's comment, challenges to ACF are making their way through the courts. One school of thought is that the compliance timeline may be elongated, and more exemptions may be granted, but ACF would not be eliminated entirely.

The most important takeaway is demonstrating that you have a plan and you're making progress on that plan. CARB is more likely to give leeway to organizations making good-faith efforts.

Ad Loading...

The wrong decision is to wait until January 2025.

Subscribe to Our Newsletter

More Blog Posts

Collage of photos from 2026 NAFA I&E
FleetTakesby Chris BrownApril 22, 2026

Navigating Brundlefly and Fleet AI at 2026 NAFA I&E

AI is becoming the operating layer for fleets. In Cleveland, the buzz was about harnessing AI in an increasingly complex, permanently disrupted environment.

Read More →
Collage of photos from Work Truck Week
FleetTakesby Chris BrownMarch 16, 2026

8 Trends: Work Truck Week 2026 Reveals a Fleet Industry in Reset Mode

Walking the show floor this year, the new focus was around “practical innovation” and pragmatic solutions. And oh yeah, a new small van.

Read More →
Geotab founder Neil Cawse on stage.
FleetTakesby Chris BrownFebruary 17, 2026

The Moment AI Became Operational

“AI isn’t assisting us anymore. It’s doing the work,” said CEO Neil Cawse at Geotab Connect 2026. What does this mean for fleet managers?

Read More →
Ad Loading...
Photo of Mike Antich on stage addressing audience
FleetTakesby Chris BrownDecember 29, 2025

For Mike Antich, it Was Always About the People

He stood tall in the industry in so many ways, but he measured success by the people he served.

Read More →
Conceptual photo of twisted pencil and cargo vans.
FleetTakesby Chris BrownDecember 9, 2025

Solving the Flexible-Lean Fleet Paradox

The lean fleets of yesterday are the fragile fleets of today. Where do we find the balance?

Read More →
An Automotive Fleet graphic noting lessons from Ed Bobit.
FleetTakesby Chris BrownOctober 31, 2025

We’ve Been Here Before

If every generation of fleet managers thought they had the worst problems, what makes ours any different?

Read More →
Ad Loading...
photo collage of trips
FleetTakesby Chris BrownOctober 9, 2025

4 Trips, 10 Flights, and a Thousand Fleet Conversations

Reflections on a month I spent connecting dots across policy, procurement, technology, and the relationships that are moving fleet forward.

Read More →
“A large cargo ship loaded with colorful shipping containers docked at a port, with cranes in the background. Bold headline text over the image reads: ‘Fleet Takes: Tariffs Are a Waiting Game.’”
FleetTakesby Chris BrownSeptember 4, 2025

Tariffs and Fleets: Where’s the Pain?

Suppliers are absorbing most of the costs for now. But that may not last.

Read More →
An AI-generated image of a gray small electric pickup truck plugged in to a charging station.
FleetTakesby Chris BrownAugust 14, 2025

Ford Announces $30k Electric Pickup — Is A New Segment Forming?

A potential “small electric pickup” segment would pair utility with a lower price point and a more attainable total cost of ownership.

Read More →
Ad Loading...
Collage of convention photos.
FleetTakesby StaffAugust 5, 2025

#ConventionHacks: How to Make the Most of a Fleet Conference

Mixed in with my experiences, these 12 tips from fleet managers and industry pros will help you maximize your work trip and return home with the most value.

Read More →