Try the Connecticut Green Building Council (ctgbc.org), a chapter of the U.S. Green Building Council in Rocky Hill that was formed in 2001; The Center for Green Building in Bridgeport (centerforgreenbuilding.com); Go Green Building-Connecticut in Orange (gogreenct.com). More information about green building practices can be found at the state Department of Environmental Protection’s website, ct.gov/dep, which has a special portal devoted to the subject.