The U.S. General Services Administration has anounced that new construction and major renovation of Federal buildings must meet the LEED Gold certification requirements. (See announcement here:  http://www.gsa.gov/portal/content/197325 )

With numerous studies showing that although LEED certification requirements add about 2%-11% to construction costs but decrease operational costs by 33% or more (See, e.g.,  http://www.usgbc.org/DisplayPage.aspx?CMSPageID=77#economic_analysis ), this is an initiative that should receive wide-spread support in most political and economic circles.