Greening the Fleet

The Fleet Greening Program began as a five-year plan in August 2000 to reduce emissions from the DOT's fleet, stay ahead of emerging regulations, and set the example for the use of emerging, clean air technologies. Today the Director’s policy on Energy Efficiency, Conservation and Climate Change continues to promote an efficient fleet mix and use of efficient, low emission vehicles to lower the dependence on petroleum as well as reduce emissions of air pollutants and greenhouse gases. Through a combination of regulation compliance, state purchasing policies, and innovative demonstrations we have implemented, including the demonstration project to use renewable diesel, the widespread use of biodiesel instead of regular diesel, battery electric and plug-in hybrid vehicles, hybrid passenger vehicles, solar-powered equipment, propane-fueled vehicles, low dust street sweepers, diesel particulate filters on heavy-duty, diesel-powered vehicles, two hydrogen demonstration vehicles, and the use of E-85 fuel ethanol. Also, in the South Coast Air Quality District, we are employing the use of compressed natural gas in much of our larger fleet.

For questions about the Department of Transportation's fleet greening program or its current status, contact Lisa Kunzman at (916) 227-9705 or by email at