First release of the Fleet Life Cycle Assessment and Material-Flow Estimation (FLAME) model associated with the paper "A dynamic fleet model of U.S light-duty vehicle lightweighting and associated greenhouse gas emissions from 2016-2050" published in Environmental Science and Technology in 2019 by Alexandre Milovanoff (a), Hyung Chul Kim (b), Robert De Kleine (b), Timothy J. Wallington (b), I. Daniel Posen (a), Heather L. MacLean (a,c). (a) Department of Civil & Mineral Engineering, University of Toronto, 35 St. George Street, Toronto, Ontario, M5S 1A4 Canada (b) Materials & Manufacturing R&A Department, Ford Motor Company, Dearborn, Michigan 48121-2053, United States (c) Department of Chemical Engineering & Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario, M5S 3E5 Canada