The U.S. Green Building Council (USGBC) is a nonprofit organization committed to transforming the built environment to enhance the well-being of people, the environment, and communities worldwide. Established in 1993, USGBC is best known for developing the Leadership in Energy and Environmental Design (LEED) green building certification system, which provides a framework for healthy, efficient, and cost-saving green buildings. The organization offers a range of programs, resources, and advocacy efforts to promote sustainable building practices and advance the green building movement.