Despite being one of the most critical resources for all life on Earth, freshwater represents only 3 percent of the planet's water supply, but only 0.5 percent is readily accessible to humans. In addition, the available freshwater resources (FWR) are unequally distributed across the globe, so many areas and populations face issues of water scarcity and quality. FWR are under enormous stress from agricultural systems, climate change, and other factors directly linked to human behavior-including population growth and industrialization. Moreover, the institutions intended to manage FWR under stress may be ill-equipped to do so, especially in the context of multiple, often competing claims on FWR and the complexity of water flows across time and space. Growing awareness of these challenges has given rise to a sense of urgency to raise attention and catalyze action toward improving the management of FWR, especially at the local level.This guide aims to advance the understanding of how communities can sustainably manage FWR by applying The Nature Conservancy's Voice, Choice, and Action (VCA) framework. 1 The original framework focused more on terrestrial resources but has been adapted here to address the unique characteristics of FWR (Box 1). These characteristics present significant implications for sustainable resource management and, therefore, need to be taken into account in the design and implementation of community-based conservation (CBC) programs.The application of the VCA framework to FWR is founded on four interconnected pillars that need to be implemented as a balanced whole so they reinforce each other as they develop over time and achieve the intended outcomes of improved and more sustainable FWR management:• Secure Rights to Territories and Resources • Strong Community Leadership and Capacity • Effective Multistakeholder Platforms for Decision-Making • Environmentally Sustainable Economic Development Opportunities Two additional cross-cutting considerations also need to be fully integrated within and across the pillars, recognizing that they are not only end goals in themselves, but also the key means for achieving CBC objectives: • Connection to Place • Equity In this guide, FWR are defined as any body of water that is fresh (not salty), together with its associated species and ecosystem resources, including aquatic plants and animals such as fish. While the guide focuses on the conservation of FWR, it is