The National Park Service has made available a draft progress report on addressing threats to Yellowstone National Park that will be submitted to the United Nations Educational, Scientific and Cultural Organization. Public comments on the draft will be included with the final report that is submitted to UNESCO. Yellowstone was among the initial properties designated as World Heritage Sites by UNESCO in 1978. The U.N. managing committee placed Yellowstone on its list of endangered sites in 1995 and removed it in 2003.