Municipalities, usually in charge of public services of water, can also have planning functions. “ Departments” (sub-national government between municipal and regional layers) contribute to territorial development and rural equipment through a series of financial subsidies to municipalities for investments related to water and sanitation infrastructure, and regions can also co-fund water and sanitation networks in the framework of the Contrat de Plan £tat-Regions. As water is a regional issue in Belgium, Flanders and Wallonia replied separately. In unitary countries such as Japan (regional offices of individual ministries), Israel (Israeli Water Authority) and Korea, representatives of line ministries in regions are the main actors in charge of implementation at sub-national level. Central services representing line ministries in regions can also play an important role in countries that have somewhat decentralised their water policy making, whether these are federal states (Belgium) or unitary (New Zealand).