The Committee is a regional cooperation instrument that responds to a shared challenge between El Salvador and Honduras regarding water use rights and water scarcity in the headwaters of the Sumpul River sub-basin (867 km2 ). This instrument is based on a multilevel and multisectoral governance agreement aimed at sustainable water use as a climate change adaptation strategy in Sumpul. Through this instrument, existing governance structures were strengthened, expanding their representation, knowledge and management capacity. Through the Binational Community Committee, a common agenda was built based on trust-building, dialogue and articulation of the stakeholders in the upper basin of the river. The instrument prioritizes actions related to the implementation of agroforestry systems and the conservation of soils and water sources.