U.S. Green Building Council
http://www.usgbc.org/Chapters/atlanta/

The Atlanta Regional Green Building Council is a partnership between the Southface Energy Institute and the U.S. Green Building Council. The Atlanta Regional Council was formed in November 2001 to advance and promote sustainable and environmentally responsible planning, design, construction and operation of the region’s buildings, landscapes, cities and communities. We are a supporter of GreenDesign and hosts of the GreenBuild Expo 2005.

GreenDesign significantly reduces or eliminates the negative impact of buildings on the environment and on the building occupants. Green building design and construction practices promote sustainable site planning, safeguarding water and water efficiency, energy efficiency, conservation of materials and resources, and indoor environmental quality.