 The Atomic Heritage Foundation is working in collaboration with the National Parks Conservation Association, the National Trust for Historic Preservation, local communities, and other organizations to urge Congress to establish a Manhattan Project National Historical Park.In March 2013, Senators Maria Cantwell and Lamar Alexander introduced S. 507 to create a park, and Representatives Doc Hastings, Ben Ray Lujan, and Chuck Fleischmann introduced a companion bill in the House, H.R.1208.