Sustaining the nation’s forests to provide lasting benefits to the people of the United States is at the core of the USDA Forest Service’s mission, and the agency is building the tools and data to support this mission. Specifically, Forest Service scientists actively monitor and assess the sustainability of the nation’s forests through the Sustainability Assessment Program, an effort that gathers and tracks information on forest conditions across the country. This information in turn enables informed discussions about sustainability in domestic and international circles.