This document is from a presentation on November 13, 2001 to the American Nuclear Society. The purpose: Examine fuel resource inputs and waste outputs for the range of potential Generation IV fuel cycles, consistent with projected energy demand scenarios. Responsibilities include: Define energy demand projections, Project ore resource base, Survey of cycle types: Identify technology gaps & Recommend R&D, Determine range of energy supply achievable by Gen IV concepts within ore availability & waste arising constraint (Scenarios), Recommend fuel cycle parameters for all GenIV activities. The span of fuel cycles will include currently deployed and proposed fuel cycles based on uranium and/or thorium. Long-term sustainability will determine the choice of fuel cycles. Economics do not strongly constrain the choice of the fuel cycle--other factors may impact choices. Included are graphs and charts as supporting documentation.