Changes implemented no later than November 2008

Source: https://web.archive.org/web/20081120183116/http://www.esfs.info/esfs-statutes.html
Changes implemented no later than March 2009

Source: https://web.archive.org/web/20090328223546/http://esfs.info/esfs-statutes.html
Changes implemented no later than February 2012

Source: https://web.archive.org/web/20120213194703/http://www.esfs.info/esfs-statutes.html
Changes implemented no later than June 2012

Source: https://web.archive.org/web/20120606170604/http://www.esfs.info/esfs-statutes.html