ASHRAE News, Oct. 26, 2016, by Jodi Scott.
https://www.ashrae.org/news/2016/ashrae-ies-publish-2016-energy-efficiency-standard

"Numerous energy savings measures resulting from industry input are contained in the newly published energy efficiency standard from ASHRAE and IES. ANSI/ASHRAE/IES Standard 90.1-2016, Energy Efficiency Standard for Buildings Except Low-Rise Residential Buildings, contains 125 addenda published since the 2013 standard. This 2016 version is the 10th edition published since the original standard was first published in 1975 during the energy crisis of the United States."