Kellogg West Conference Center and Lodge, California State Polytechnic University, Pomona, California, February 15-17, 2002. "The workshop report identified the most important issues that need to be addressed in a comprehensive evaluation of life cycle environmental impacts associated with differenct fuel options. The 10 major issues include: Conducting a timely initial assessment to identify critical issues, data gaps, and boundaries; identifying and characterizing environmental release potential in the manufacturing, transport, storage, and handling infrastructure ; Applying human health and ecological risk assessment framework to evaluate the life cycle impacts of fuel options ; Net energy value of fuel options ; Identifying potentially problematic fuel components, byproducts, and impurities; addressing knowledge gaps regarding their environmental analyses, persistence, and fate and transport characteristics ; Data and information systems need to be developed to support fuel life cycle environmental impact evaluations and comprehensive multimedia models ; Improving comunication between scientists and stakeholders throughout the assessment process ; Formulating specific fuel policies; comparing the world with and without the policy; using economic-engineering models to do the analysis ; Developing a life cycle evaluation and testing matrix for conducting assessments of transportation fuel options ; Complete goal and scope definition should be incorporated with other decision-making tools.