Background Irrigation is the largest water consuming activity in Morocco. In countries where rainfall is insufficient to supply those needs, reuse of domestic and industrial waters is needed. However, regulations for the reuse of wastewater for irrigation are not yet in place in Morocco. This is due to the difficulties in establishing the required infrastructures for wastewater treatment and the important economic role which water is playing in current irrigation practices. This is causing a strong negative environmental impact that the project will address. Objectives The project aims to demonstrate the use of best available technologies for wastewater treatment, pollution reduction, and water reuse in irrigation and build administrative capacity for the management of the entire water cycle, in particular in the Settat province. The results will be used to support environmental legislation, improve environmental management, and promote strategies for sustainable development of agriculture and water resources management. The demonstration activities will comprise the adaptation and operation of an anaerobic reactor, which has been developed under the LIFE I-Environment programme, and the INCO-Programme of the EU. The treated water should satisfy national and European norms and regulations for water reuse for irrigation.