The Sustainable Sites Initiative™ (SITES™) program is an interdisciplinary effort by the American Society of Landscape Architects, the Lady Bird Johnson Wildflower Center at The University of Texas at Austin and the United States Botanic Garden to create voluntary national guidelines and performance benchmarks for sustainable land design, construction and maintenance practices.
Guidelines and Performance Benchmarks 2009: This set of prerequisites and credits combines current research, technology, best practices and performance goals for the design, construction and maintenance of sustainable sites. Released on November 5, 2009, the document has incorporated public feedback from two interim reports released in 2007 and 2008.
SITES v2 Rating System and Reference Guide: This will be the definitive resource for project teams to use to thoroughly understand and navigate the Sustainable Sites Initiative™ (SITES™) program's revised rating system. Embedded within SITES v2, the rating system includes improved credits based on the experience from the SITES two-year pilot program, additional research and science, and input from technical advisors and staff. SITES v2 will also include additional information on how to achieve sustainability goals outlined in the credits. It will feature credit examples, worksheets, documentation criteria, calculation guidelines, and an improved user experience. Slated for release in 2014, SITES v2 will replace the Guidelines and Performance Benchmarks 2009. The release of the new SITES v2 Rating System and Reference Guide will be completed in 2014.