The California Air Resources Board has certified Hyzon Motors' repowered Class 8, 7, and 6 fuel cell-electric trucks as exempt from emission requirements, enabling the company to sell fuel-cell-electric trucks in California.
Hyzon Receives CARB Zero-Emissions Certification
With this certification, Hyzon expects it will offer some of the first commercially available repowered Class 8, Class 7 and Class 6 FCEVs in California.

Hyzon truck in the ACT Expo ride-and-drive in May.
Photo: Jim Park
Hyzon's Repower program allows customers to exchange their used diesel trucks for conversion to fuel-cell-electric using Hyzon's proprietary fuel cell technology.
With this certification, Hyzon expects it will offer some of the first commercially available repowered Class 8, Class 7 and Class 6 FCEVs in California. While FCEVs have been granted provisional approvals for trials, and fuel-cell-electric buses have received CARB certification, no known heavy- or medium-duty FCEVs are available, based on the list provided by California's Hybrid and Zero-Emission Truck and Bus Voucher Incentive Project, according to Hyzon.
HVIP, an incentive program administered by national clean transportation consortium Calstart, provides subsidies to reduce the incremental cost of clean commercial vehicles. CARB certification is the primary requirement to secure HVIP eligibility in California. Hyzon expects to qualify for the incentive program later this year.
"We are proud to join the list of vehicle and technology providers certified by CARB as zero-emission, and plan to lead the deployment of fuel cell electric trucks in commercial operations in California," said Hyzon Motors CEO Craig Knight in a press release. "Our technology has already proven itself in daily runs at the Port of Long Beach, and we look forward to putting more clean trucks on the road. Drayage operations are a particularly attractive use-case on hydrogen, and we expect to see rapid uptake in California."
More Fuel Smarts

Range Energy Confirms eTrailer Performance in Winter Testing as Commercial Rollout Nears
Range Energy said its production-ready eTrailer system proved it can boost stability, safety, and efficiency in sub-zero winter conditions as the company moves toward scaled deployment.
Read More →
Top Green Fleets of 2026: Nomination Deadline Extended
Is your company a leader in sustainability efforts among trucking fleets? If so, Heavy Duty Trucking's editors want to hear from you.
Read More →New Lightweight Wheel Cover Targets Simpler Aero Gains [Watch]
Watch to learn how Deflecktor's new wheel cover design is taking a simpler approach to aerodynamics, with an eye toward making it more practical for both trucks and trailers.
Read More →
Deflecktor: Hubbub Aerodynamic Wheel Cover Cost-Effective Even for Trailers
Aerodynamic wheel covers can deliver small but meaningful fuel-economy gains for fleets, and Deflecktor says its latest design aims to make the technology easier and more affordable to deploy.
Read More →Cutting Fleet Fuel Costs in a Volatile Market [Listen]
When diesel prices are as volatile as they've been in 2026, it makes it tough for trucking fleets to plan and control costs. Breakthrough Fuel's Jenny Vander Zanden has insights on near-term savings strategies.
Read More →Diesel Price Swings Aren’t Over. What Can Your Fleet Do?
Practical steps fleets can take to manage fuel costs, from purchasing strategies to driver behavior.
Read More →
Diesel Prices Surge Toward Record Highs as Oil Price Volatility Intensifies
Prices jumped another 24 cents in a week, with California topping $7.50 and new data showing fleet fuel costs may already be at record levels.
Read More →
Volvo Testing Hydrogen-Fueled Internal Combustion Engines on Trucks in Europe
Hydrogen combustion engine trucks will be especially suitable over longer distances and in regions where there is limited charging infrastructure or time for recharging of battery-electric trucks, according to the company.
Read More →
Toyota’s Entry Into Cellcentric Signals Push to Accelerate Hydrogen Truck Adoption
By joining Daimler Truck and Volvo, Toyota brings fuel cell expertise to a joint effort aimed at making hydrogen viable for heavy-duty transport.
Read More →
U.S. Diesel Prices Hit $5.40, Top $7 in California
Trucking operators are slowing speeds, cutting empty miles, and declining unprofitable freight as diesel costs continue to rise due to conflict in the Middle East.
Read More →
