Everything You Need to Know About California’s New Zero-Emission Fleet Rules
Bollinger B4 Achieves CARB Certification
Bollinger Motors’s Class-4 low cab forward chassis truck, the Bollinger B4, has achieved certification from the California Air Resources Board. CARB certification is needed to sell the trucks in 14 states and the District of Columbia.

The Bollinger B4 now has CARB certification. Production begins this month, and deliveries to customers are expected in October.
Photo: Bollinger Motors
Mullen Automotive said its subsidiary, Bollinger Motors, has achieved a key commercial EV milestone with its B4 all-electric, Class-4 low cab forward chassis truck, which received certification from the California Air Resources Board.
“The CARB certification represents an important milestone in our mission to bring a world-class electric vehicle to market,” said Bryan Chambers, Bollinger Motors’ president and chief operating officer. “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.”
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.
CARB certification provides a path for Bollinger Motors’ customers to qualify for additional state incentives, such as California’s HVIP project (HVIP). 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 total savings.
Bollinger Motors will begin production of the B4 on Sept. 16, with customer deliveries to begin in October.
CARB Certification Required in 15 States and DC
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
District of Columbia
Other Recent Bollinger Milestones
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.
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