The National Brownfield Association, headquartered in Chicago, is the leading non-profit, member-based organization dedicated to promoting the sustainable development of brownfields. The NBA encourages the use of green design and construction practices, clean energy and green transportation in brownfield redevelopment projects. The NBA represents the wide range of public and private sector professionals involved with brownfield redevelopment, including, property owners, developers, investors, service professionals, government representatives and elected officials. Its mission is carried out through three primary conduits: information, education and events. NBA is the go-to organization for information on the brownfield market, keeping its members up to date on market trends, redevelopment opportunities, and changes in policy and legislation.