Municipal Solid Waste (MSW) has become a major concern in all aspects of urban development. The MSW generation gradually increase despite all waste minimisation efforts, and therefore its management get tougher subsequently by years. In matter what disposal or containment measures are taken. Thus, an understanding of soil-waste interaction is important so that geotechnical and geoenvironmental structures could be constructed safely and reliably. The establishment of a good sanitary landfill system would help to achieve an objective of a clean and healthy society. Also, the criteria for this sanitary landfill design would be heading towards a cost-effective design making use of readily available materials in the final chosen site of the project or locally generated materials that would help in creating more economical sanitary landfill construction. Therefore, laterite soil, as one the major groups of tropical residual soils, is investigated in the application for sanitary landfill liner. The purpose of this book is to summarize the current state of laterite soil used as a stand-alone material and has a geotechnical potentiality as a sustainable material for waste disposal systems (sanitary landfill liner and cover).