A certification program that provides guidelines for "sustainable land design, construction and maintenance practices." SITES can be applied to areas with or without buildings. The website details the areas of focus of the initiative, including vegetation, materials and human health and well-being. Case studies of the pilot projects are included. The Sustainable Sites Handbook: A Complete Guide to the Principles, Strategies, and Best Practices for Sustainable Landscapes is available to aid in the development of sustainable landscape projects.