Don MacKenzie leads the Sustainable Transportation Lab at the University of Washington, where he is an Assistant Professor of Civil & Environmental Engineering. He has more than ten years’ experience with the technical and policy dimensions of clean vehicle research, development, and deployment, spanning vehicle technologies, fuels, and driver behavior. As a graduate student at the Massachusetts Institute of Technology, he studied the technical and market tradeoffs between fuel economy and competing design attributes, developed estimates of the gains in system-level vehicle efficiency since the 1970s, and created some of the first discrete choice models of the charging behavior of plug-in vehicle drivers. He previously did technical and policy analysis and advocacy on clean vehicles issues for the Union of Concerned Scientists in Washington, DC, researched biofuel technologies for Syntec Biofuel, and fuel cells for Ballard Power Systems. Dr. MacKenzie is a member of the Transportation Research Board’s Standing Committee on Transportation Energy, and chairs its Subcommittee on Energy and Demand Implications of Connected and Automated Vehicles.