Keep Reading: 17 Things to Know About CARB’S Advanced Clean Fleets Rule
Mullen Announces CARB Approval for 2025 Class 3 EV Cab Chassis Truck
The recent Advanced Clean Fleets regulation requires state and local government fleets, including city, county, special district, and state agency fleets, to ensure 50% of vehicle purchases are zero-emission beginning in 2024 and 100% of vehicle purchases are zero-emission by 2027.

Mullen is now in receipt of CARB approval for both 2024 and 2025 Class 3 Model Years.
Photo: Mullen
Mullen Automotive has received certification from the California Air Resources Board on the 2025 Mullen THREE, Class 3 all-electric low cab forward chassis truck. The certification is awarded to vehicle manufacturers who meet specific emissions standards in compliance with CARB regulations.
The District of Columbia and 14 states, including California, have adopted vehicle standards under Section 177 of the Clean Air Act (42 U.S.C. §7507), which requires additional approvals beyond EPA regulations.
A copy of Mullen’s 2025 Class 3 CARB certification can be found on MullenUSA.com. The Company previously received 2024 Model Year CARB certification for the Mullen THREE in January 2024.
Impact of CARB's Advanced Clean Fleets Regulation
CARB certification opens the Mullen THREE to critical state EV incentive programs, which vary by each eligible CARB-compliant state. The certification takes on even more significance with CARB’s recent Advanced Clean Fleets (“ACF”) regulation, which will have a requirement that state and local government fleets, including city, county, special district, and state agency fleets, ensure 50% of vehicle purchases are zero-emission beginning in 2024 and 100% of vehicle purchases are zero-emission by 2027. Fleets that fall under high priority may also elect to utilize ZEV milestones as an option to meet overall ZEV targets.
CARB-compliant states and locations include: California, Connecticut, Colorado, Delaware, Maine, Maryland, Massachusetts, New Jersey, New Mexico, New York, Oregon, Pennsylvania, Rhode Island, Vermont and the District of Columbia.
Incentive Programs: California's HVIP and Beyond
California’s HVIP project is an example of a state incentive program available to CARB-certified vehicles. Under HVIP, the Mullen THREE EV truck, with a suggested MSRP of $68,500.00, may qualify for a rebate of up to $45,000.00 and, when combined with the available $7,500.00 federal tax credit, the net effective cost of the Mullen THREE would be less than $20,000.00.
“Our vehicles are CARB approved and ready for delivery with many states and local governments offering very strong incentives to electrify commercial fleets,” said David Michery, CEO and chairman of Mullen Automotive.
More Operations

How Government Fleets Helped Build America
As the United States celebrates its 250th anniversary, this look back explores how government fleets evolved from horse-drawn wagons to specialized vehicles that keep communities running today.
Read More →
Fleet History, Long-Term Maintenance, and Fleet Needs | GovCast Cheat Sheet
Public fleet work has changed dramatically, but the core responsibility remains the same: keeping communities moving.
Read More →
Recognizing Progress, Leadership in Fleets | The June Dispatch
Catch up on the past month, whether you're interested in GFX news or Government Fleets' go-to articles for your operation.
Read More →
Beyond Utilization Rates: Smarter Fleet Replacement Decisions
Vehicle replacement decisions affect every aspect of fleet performance, from operating costs to asset availability. This guide explores how fleet leaders use integrated data, benchmarking, and lifecycle analytics to determine the right fleet size and optimize replacement timing with greater confidence.
Read More →
Talking Success, Leadership, and Fleet Needs
A perspective on the future of fleet management, the lessons learned about building strong teams in the public sector, and how to carry forward the department’s strategic direction.
Read More →
Proactive Approaches to Fleet Management Challenges with Erinn DeJonge
In this episode, we put the spotlight on the professional journey of Erinn DeJonge, CAFM, who brings a wealth of experience to her role as the fleet business operations manager at Sarasota County Government.
Read More →
The FleetGap Initiative: Transitioning from Military to Civilian Fleet Roles
FleetGap is working to build the missing bridge between service members preparing for civilian careers and fleet employers facing workforce shortages.
Read More →
How Government Fleets Are Turning Connected Vehicle Data Into Practical Decisions
Public sector fleets are using connected technology to improve visibility, but the bigger challenge is building the processes to act on the information it provides.
Read More →
RoadFlex Brings Fuel Tax Compliance and Audit-Ready Reporting to Government, Public Works Fleets
New capabilities aim to help public-sector and public works fleets streamline fuel tax exemptions, reclamation, reconciliation, and audit-ready reporting.
Read More →
2026 Public Fleet Hall of Fame Inductees Honored
This year's class includes leaders whose work has helped shape the public fleet industry.
Read More →

