Liana Vaccari, PhD, is a Program Officer with the Board on Chemical Sciences and Technology of the National Academies of Sciences, Engineering, and Medicine. In this role, Vaccari co-directs the Roundtable on Plastics, supports the U.S. National Committee for the International Union for Pure and Applied Chemistry, and broadly manages a portfolio of projects in the chemistry and chemical engineering space with a focus on sustainability and circularity. Prior to this role, she acted as the Resiliency Working Group lead at the New Jersey Dept. of Transportation as a science fellow of the Rutgers Univ. Eagleton Institute of Politics, where she coordinated internal efforts to incorporate projected risks from climate change into agency processes. Previously, Vaccari worked at the Consortium for Ocean Leadership, managing community engagement for the Ocean Observatories Initiative and was a Mirzayan science and technology policy graduate fellow with the Ocean Studies Board at the National Academies. Vaccari earned a BE in chemical engineering from the Stevens Institute of Technology, a BS in chemistry from New York Univ., and a PhD in chemical engineering from the Univ. of Pennsylvania.