By 1999 the complex made the transition to lab and office space as part of the
National Energy Technology Laboratory network throughout the United States. The complex is home to three major agencies including the Federal Energy Technology Center (U.S. Department of Energy), the
National Institute for Occupational Safety and Health (U.S. Department of Health and Human Services, Centers for Disease Control), and the Mine Safety & Health Administration (U.S. Department of Labor). Over one thousand government and contractor employees worked at the site by 2000. ==See also==