Douglas Eisinger is a senior vice president and chief scientist for transportation policy and planning at Sonoma Technology. He has more than 30 years of public and private sector experience. Under the National Academies of Science, Engineering, and Medicine, Dr. Eisinger chaired the U.S. Transportation Research Board’s Air Quality (2017-2020) and Air Quality and Greenhouse Gas Mitigation (2020-2023) Committees. For more than 12 years, he was the program manager for the UC Davis-Caltrans Air Quality Project. He also served four years as mobile sources section chief for U.S. EPA Region 9, San Francisco. Dr. Eisinger is also an Affiliate Professor at the University of Washington, where he teaches in the Master of Sustainable Transportation program. He taught Air Quality Management: Policy and Practice for 20 years at the University of Hawaii, and he also taught transportation policy at UC Davis. His book, “Smog Check: Science, Federalism, and the Politics of Clean Air,” is an in-depth case study of one of the U.S. Clean Air Act’s most important emissions control programs. Dr. Eisinger earned a bachelor’s in government at Cornell University, a master's in public policy with an emphasis on energy and environmental policy at Harvard University, and a Ph.D. in environmental policy analysis at the University of Wales.