Water flows through the heart of Scotland, literally and figuratively. Water is arguably Scotland's chief environmental feature, celebrated in Scottish social life and a critical resource for all sectors of the Scottish economymanufacturing, energy, agriculture, food and drink, even tourism (Figure 37.1). This case study describes Scotland's approach to water resources management through its 'Hydro Nation' agenda, with particular focus on its introduction of competition in its domestic water supply, and its international activity in support of UN Sustainable Development Goals. By allowing more than 30 government licensed providers to serve non-household (including industrial) water accounts, The Scottish Government has managed to reduce industrial water use by 12%, with commensurate reductions in energy and greenhouse gas production. At the same time, Scottish international efforts in Malawi and Tanzania have supported the development of progressive water management policies and sustainable industrial practices there. 37.2 SCOTTISH WATER: ORIGIN AND INNOVATION Production and transmission of clean water and treatment and disposal of wastewater is carried out by Scottish Water, a public corporation accountable to Parliament and its Ministers. In addition, for over a decadesince 2008licensed providers, now numbering more than 30, have supplied water on a retail basis to business customers, including industrial users, the service sector and public sector, and