municipalities usually in charge of public services of water can also have planning functions departments subnational 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 cofund water and sanitation networks in the framework of the contrat de plan tatregions 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 subnational 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