The 18th Edition of the Guide to Greener Electronics was published by Greenpeace in November 2012 with an updated methodology that were meant to reflect progress within the industry since 2006 and to set a new challenge for the industry to become more sustainable across company operations and supply chains.
Greenpeace assesses companies based only on their public information and practice to ensure the ranking is transparent. Companies can be held publicly accountable when they do make commitments. Making changes public also helps drive competition between the companies. The only criterion where nonpublic information is accepted is on advocacy, where a company may have voiced a clear position to relevant decision makers but does not make this public.