Editing Holding company (section)

====Utilities====
The [[Public Utility Holding Company Act of 1935]] caused many energy companies to divest their subsidiary businesses. Between 1938 and 1958 the number of holding companies declined from 216 to 18.<ref>{{cite web |last=Hirsh |first=Richard |title=Documenting History in the Making |url=http://americanhistory.si.edu/csr/powering/ |url-status=dead |archive-url=https://web.archive.org/web/20120901160712/http://americanhistory.si.edu/csr/powering/ |archive-date=2012-09-01 |website=National Museum of American History}}</ref> [[Energy Policy Act of 2005|An energy law passed in 2005]] removed the 1935 requirements, and has led to mergers and holding company formation among power marketing and power brokering companies.<ref>{{cite web |title=Public vs. Private Power: from FDR to Today |url=https://www.pbs.org/wgbh/pages/frontline/shows/blackout/regulation/timeline.html#fn3 |url-status=live |archive-url=https://web.archive.org/web/20170908201754/http://www.pbs.org/wgbh/pages/frontline/shows/blackout/regulation/timeline.html#fn3 |archive-date=8 September 2017 |access-date=2014-11-28 |website=PBS}}</ref>