Municipal solid waste (MSW) is a domestic energy resource with the potential to provide a significant amount of energy to meet U.S. liquid fuel requirements. MSW is defined as household waste, commercial solid waste, non-hazardous sludge, conditionally exempt, small quantity hazardous waste and industrial solid waste. This book examines the potential use of MSW to make synthesis gas (syngas) suitable for production of liquid fuels; the expected process scale required for favorable economics; the availability of MSW in quantities sufficient to meet process scale requirements and state-of-the-art MSW gasification technology.