Directive 2008/98/EC of the European Parliament and of the Council of 19 November 2008 on waste and repealing certain Directives, Article 8(1). No discrimination in regards to foreign retailers. If individual networks are implemented, there are procedures of authorization and testing. For unofficial version see: http://www.taxheaven.gr/laws/law/index/law/413 AND http://www.taxheaven.gr/laws/law/index/law/212/hl/%CE%B1%CE%BD%CE%B1%CE%B3%CE%BD%CF%8E%CF%81%CE%B9%CF%83%CE%B7 AND https://www.e-nomothesia.gr/kat-periballon/apobleta/n-2939-2001.html