Energy Manager Today, Oct. 21, 2016, by Carl Weinschenk.
http://www.energymanagertoday.com/leed-v4-is-ready-to-take-center-stage-0127873/

"Many facility managers, energy managers and building owners aspire to certification in the U.S. Green Building Council’s Leadership in Energy & Environmental Design (LEED) program. On Nov. 1, the fourth version of LEED will take full effect."