The Green Building Certification Institute (GBCI) was established as a separately incorporated entity with the support of the U.S. Green Building Council. GBCI administers credentialing programs related to green building practice. These programs support the application of proven strategies for increasing and measuring the performance of buildings and communities as defined by industry systems such as the Leadership in Energy and Environmental Design (LEED®) Green Building Rating Systems™.

http://www.gbci.org