Portland Business Journal, Dec. 8, 2016, by Pete Danko.
http://www.bizjournals.com/portland/news/2016/12/08/portland-set-to-pass-home-energy-score-requirement.html

"The Portland City Council on Wednesday signaled that it’s ready to approve a measure that will require homeowners to get a home energy score before they put their house up for sale. The measure, promoted by Mayor Charlie Hales, is supported by energy-efficiency advocates and climate-change activists but fiercely opposed by the Portland Metropolitan Association of Realtors."