Trex is a proud member of the U.S. Green Building Council (USGBC), which is the nation’s foremost coalition of leaders from every sector of the building industry. Leadership in Energy and Environmental Design (LEED), developed in part by USGBC, is a third party certification program and the nationally accepted benchmark for the design, construction and operation of high performance green buildings. LEED is a point-based system and grades projects that are able to satisfy specific green building criteria. Products can contribute to points under the rating system since LEED criteria are performance-based.