Automotive Fleet
MenuMENU
SearchSEARCH

Bollinger’s B4 Truck Earns CARB Approval

Certification opens the Bollinger B4 EV truck to federal and state incentive programs totaling $100,000 in potential savings.

September 12, 2024
Black and white image of three variations of a Bollinger Motors B4.

Bollinger Motors will begin production of the B4 on Sept. 16, 2024, with customer deliveries to begin in October.

Photo: Bollinger Motors

2 min to read


Mullen Automotive, Inc., announced that its subsidiary, Bollinger Motors, has achieved a commercial EV milestone with its B4 all-electric, Class 4 low cab forward chassis truck, receiving certification from the California Air Resources Board (CARB).

The CARB certification is a requirement to sell vehicles in the CARB-compliant states of California, Colorado, Connecticut, Delaware, Maine, Maryland, Massachusetts, New Jersey, New Mexico, New York, Oregon, Pennsylvania, Rhode Island, Vermont and the District of Columbia.

Ad Loading...

All CARB states and locations have adopted vehicle standards Section 177 of the Clean Air Act (42 U.S.C. §7507), which requires additional approvals beyond Environmental Protection Agency regulations.

Gearing up for Production After B4 Certification

CARB certification provides Bollinger Motors' customers a path to qualify for additional state incentives, such as California's HVIP project. When combined with the B4's $40,000 IRS rebate, HVIP can offer a rebate of up to $60,000, adding up to $100,000 in combined savings.

Bollinger Motors will begin production of the B4 on Sept. 16, 2024, with customer deliveries to begin in October.

"The CARB certification represents an important milestone in our mission to bring a world-class electric vehicle to market," Bryan Chambers, Bollinger Motors' president and chief operating officer, said. 

"Environmental requirements are critical to meeting customer expectations and providing sale-ready vehicles. With this important accomplishment, the B4 is one step closer to electrifying vehicle fleets from coast to coast," Chambers continued.

Ad Loading...

The CARB certification is among a long list of Bollinger Motors' milestones in recent months, including:

  • Receiving the Certificate of Conformity from the Environmental Protection Agency.

  • Providing full warranty coverage of the B4 chassis cab.

  • A 145-vehicle sale to Momentum Group.

  • A 70-vehicle sale to Doering Fleet Management.

  • A 50-vehicle sale to EnviroCharge.

  • The addition of TEC Equipment, Affinity Truck Center, Nacarato Truck Centers, Nuss Truck & Equipment, and LaFontaine Automotive Group as dealers and service centers.

  • Adding Our Next Energy in Novi, Michigan, to supply battery packs.

  • Teaming up with Syncron as its warranty administration partner.

  • Adding Amerit Fleet Solutions as its mobile service provider.

More Green Fleet

Sketch of chassis cab truck.
Green Fleetby Chris BrownMarch 9, 2026

Startup ZMD Motors Developing Electric Conversion for Ram 5500 Work Trucks

Detroit-based company says it has begun early development of a system to convert internal combustion Ram 5500 chassis-cab trucks to electric power.

Read More →
SponsoredFebruary 26, 2026

MOVING ON FROM DEBATE: A Guide for Fleet Managers Who Just Want To Get Electrification Done

Fleet managers are done with the debate—and focused on execution. Learn how to build a practical electrification strategy that aligns infrastructure, operations, and financing while keeping costs controlled and deployment scalable with support from Blink Charging. Discover how smart planning today positions fleets for long-term performance and ROI.

Read More →
EV charging symbol
Green Fleetby Chris BrownFebruary 12, 2026

U.S. EV Adoption Is Climbing, but Commercial and Passenger Markets Diverge

New industry group data revealed that light-duty electric vehicle sales are hitting record market share and volumes, while commercial EV volume dipped. What’s driving the fluctuations?

Read More →
Ad Loading...
SponsoredFebruary 6, 2026

Hybrids: Electrification Without the Challenges

For fleet managers, fuel is one of the biggest line items in the budget — and it's one hybrids can shrink without changing how your people work. Download the eBook to see the numbers, understand the technology, and get a step-by-step guide to making the switch.

Read More →
A side view of the yellow, blue, and red Slate Auto electric pick-up truck and SUV
Upfittingby Martin RomjueDecember 8, 2025

How To Upfit Electric Work Trucks and Vans

The biggest challenge lies in balancing additional equipment and accessories with EV battery capacity and range.

Read More →
Green Fleetby Martin RomjueDecember 4, 2025

How Fleets Can Adjust Approaches To EV Adoption

With the expiration of federal incentives, EV success now hinges less on government policy and more on discounts, battery tech progress, increased range, and broader infrastructure.

Read More →
Ad Loading...
Panelists on stage at FFC.
Fleet Forwardby Martin RomjueOctober 29, 2025

Despite World Troubles, Forward Thinking Guides Fleets

Fleet operators shared their challenges during an annual conference that embraced the latest advances across all aspects of running private- and public-sector vehicles.

Read More →
Illustration of GM Energy’s vehicle-to-home system showing an electric truck connected to home power storage, the grid, and GM Energy Cloud through the myOwner app.
Green Fleetby News/Media ReleaseOctober 28, 2025

GM Energy Details Partnerships and Targets for Public Charging Build-Out

EVgo, Pilot, ChargePoint and IONNA named; goal is 35k GM-invested DC stalls by 2030, with customer-experience upgrades at sites.

Read More →
Chart showing September 2025 EV sales. New EV sales totaled 147,716 units, up 44% year over year, and used EV sales hit 40,569 units, up 76%, marking strong third-quarter performance.
Green Fleetby News/Media ReleaseOctober 23, 2025

Q3 Electric Vehicles Sales Hit Record High

EV buyers took advantage of the final federal tax credit days, while average prices edged up for new EVs and continued to decline for used models.

Read More →
Ad Loading...
A green vertical bar graph chart showing the rises and dips in quarterly EV sales since early 2022.
Green Fleetby News/Media ReleaseOctober 10, 2025

EV Sales Hit Record in Q3 Before Incentives Expire

But most OEMs record low-volume sales, which means EV profitability remains a distant dream for nearly every automaker.

Read More →