The purpose of these Ethiopian guidelines is to provide step-by-step guidance to the operators and managers of the large, medium and small urban water supplies with conventional water treatment systems on how to develop, implement, monitor, and review the water safety plans aimed at protecting human health. Furthermore, it serves as practical tool in identifying and addressing priority risks to the water quality and quantity, reliability and sustainability of the water supply system  including risks related to current and future impacts of climate changes by taking into consideration available resources and capacities of the water supply system.