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In 2000, the United States Environmental Protection Agency (EPA) and the German Federal Ministry of Education and Research (BMBF) continued a cooperative effort to share information and evaluate new solutions and tools for the redevelopment of contaminated sites. By using model projects to demonstrate exemplary approaches to site redevelopment, the working group aims to evaluate new approaches and technologies and then transfer lessons learned throughout the U.S. and Germany. Since 2005, the working group is in Phase 4 with the focus of exchange on approaches, strategies, and tools for sustainable brownfield revitalization.

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