Fang Yan is a Senior Manager in Environmental Modeling at ICF, with extensive experience in managing projects related to zero-emission bus rollout plans, hydrogen and renewable natural gas market and incentive reviews, and lifecycle assessments of sustainable fuels. Previously, Fang served as a Manager at the California Air Resources Board, overseeing the development of emission inventory models and regulations for criteria pollutants, and worked as an Air Resources Engineer focusing on zero-emission regulations and economic assessments. Fang's academic background includes a Ph.D. in Environmental Engineering and Science from the University of Illinois Urbana-Champaign, along with roles at Argonne National Laboratory and Tsinghua University, contributing to significant research projects and publications in environmental science and technology.