The International Scheldt Commission (ISC) is an intergovernmental organisation for the sustainable management of the International River Basin District of the Scheldt (including the affluents of the Scheldt, La Somme and Yser rivers, and the North Sea costal line between Ault in France and Zierikzee in the Netherlands). The ISC is created in 1994 by the governments of the French Republic, the Kingdom of Belgium, the Walloon Region, the Flemish Region, the Brussels Capital Region and the Kingdom of the Netherlands signing the Treaty of Charlesville Mezières on the protection of the Scheldt; and was expanded and obtained by the Treaty of Ghent (03/12/2022) the overview of the implementation of the European Water Framework Directive (2000), the Flood Directive (2007), and the operations of the Scheldt Warning and Alarm System. As such, the organisation is directly in charge of the water reserves and quality of nearly 15 million people.