The vehicles will result in the reduction of greenhouse gas emissions while lowering fuel costs and reducing the use of petroleum-based products.

The Hybrid Truck and Bus Voucher Incentive Project provides financial incentives ranging from $10,000 to $45,000 for each hybrid truck introduced.

Eaton hybrid power systems engineering director Gerard Devito outlined that the project off-sets about half of the incremental cost of eligible hybrid vehicles.

"The program strongly benefits the public and commercial truck industry by helping interested fleets save money while delivering more sustainable transportation.

"We applaud the state of California for its pioneering work and many investments to promote and support the use of hybrid vehicles and other clean technology vehicles," added Devito.