The National Environmental Justice Advisory Council (NEJAC) is a formal federal advisory committee chartered pursuant to the Federal Advisory Committee Act (FACA) to provide advice and recommendations to the Administrator of the U.S. Environmental Protection Agency (EPA) on matters related to environmental justice. The report was initially prepared by the Unintended Impacts Work Group (UIWG) of the NEJAC's Waste Facility Siting Subcommittee (WFSS). The WFSS was sponsored by the EPA's Office of Solid Waste and Emergency Response (OSWER). Due to a change in the NEJAC's charter, the WFSS terminated its activities at the end of 2004. This report presents lessons learned regarding unintended impacts of successful brownfields cleanup, redevelopment and revitalization projects and makes recommendations to EPA, with particular emphasis on OSWER.