David Friedman is the Deputy Director of the Clean Vehicles Program and is the author or co-author of more than 30 technical papers and reports on advancements in conventional, fuel cell, and hybrid electric vehicles, with an emphasis on clean and efficient technologies. His work includes: Climate 2030: A National Blueprint for a Clean Energy Economy, A New Road: The Technology and Potential of Hybrid Vehicles; Building a Better SUV: A Blueprint for Saving Lives, Money, and Gasoline; and Drilling in Detroit: Tapping Automaker Ingenuity to Build Safe and Efficient Automobiles. He is currently a member of the Committee on the Assessment of Technologies for Improving Light-Duty Vehicle Fuel Economy with the National Academies Board on Energy and Environmental Systems. In 2008, Washingtonian magazine profiled him as one of "30 people changing the environment in Washington."

Before joining UCS, Friedman worked for the University of California-Davis in the Fuel Cell Vehicle Modeling Program, developing simulation tools to evaluate fuel cell technology for automotive applications. At UC Davis, he also worked on the UC Davis Future Car Team to build a hybrid electric family car that doubled its fuel economy. He previously worked at the Arthur D. Little management consulting firm researching fuel cell, battery electric, and hybrid electric vehicle technologies, as well as photovoltaics.

Mr. Friedman earned his bachelor's degree in mechanical engineering from Worcester Polytechnic Institute and is currently finishing his doctoral dissertation on transportation technology and policy at UC Davis.