Dr. Sydney Vergis was appointed Deputy Executive Officer at the California Air Resources Board in June 2023. Dr. Vergis’ responsibilities include overseeing new and emerging air pollution control programs and policies related to mobile emissions sources. In addition, she oversees the incentive programs in the Sustainable Transportation and Communities Division and the Mobile Source Control Division (MSCD). Previously, Dr. Vergis was the Division Chief of MSCD, overseeing the development and implementation of medium-duty, heavy-duty and off-road emissions regulations, as well as many of CARB's incentive programs. She previously led CARB’s Legislative Office and is a former Senior Land Use Planner and former Yolo County Planning Commissioner. She is also a member of the Davis Sunrise Rotary Club.

Dr. Vergis received a B.S. in Environmental Policy Analysis and Planning, a B.A. in Economics and a Master of Science and Ph.D. in Transportation Technology and Policy, from the University of California Davis.