In the framework of the international project "Integrated Concepts for Water Reuse" (Aquarec), an independent task-force composed by water and wastewater utilities professionals, consultants and researchers was assigned the task and produced a manual of management practices for water reuse schemes. This paper aims to give an overview of water reuse activities around the world and to outline the specific characteristics of every sectoral use. The paper shows that consolidated experience exists with technology and management practices and that effective and practicable management practices should include a combination of structural, non-structural and managerial techniques. Finally, some critical factors that influence to a large extent the project's potential sustainability are delineated.