The document provides an introduction to the Global Environment Facility (GEF) and international waters, and the TDA/SAP process. It explains that the GEF is the largest public funder of global environment projects, having provided $10.5 billion for over 2,700 projects in 165 countries since 1991. International waters in the context of GEF include transboundary river basins, lakes, groundwater, and large marine ecosystems that are shared between countries. Nearly half the world's population lives within international river basins, demonstrating the importance of jointly managing shared water resources.