<ul><li><a href=http://eur-lex.europa.eu/legal-content/en/ALL/?uri=CELEX:31997L0067 target=_blank>Directive 97/67/EC(Directive 97/67/EC of the European Parliament and of the Council of 15 December 1997 on common rules for the development of the internal market of Community postal services and the improvement of quality of service, Article 22)</a></li></ul>