Therese Langer is the Transportation Program Director for the American Council for an Energy-Efficient Economy in Washington, DC. Her program analyzes and promotes strategies to reduce energy consumption in the U.S. transportation sector and produces annual environmental ratings of new cars and light trucks. She recently served on the National Research Council’s Committee on the Assessment of Technologies for Improving Fuel Economy of Light-Duty Vehicles, Phase 2. She is the author of publications on light- and heavy-duty vehicle technologies, feebate policies, consumer vehicle labels, and efficiency of the goods movement system. Therese previously worked as staff scientist at the Rutgers Environmental Law Clinic. She has a B.A. from Harvard University and a Ph.D. in mathematics from the University of California at Berkeley.