Se artikel 9 i Europa-Parlamentets og Rådets direktiv 2002/21/EF af 7. marts 2002 om fælles rammebestemmelser for elektroniske kommunikationsnet og -tjenester (rammedirektivet).
See Article 9 of Directive 2002/21/EC of the European Parliament and of the Council of 7 March 2002 on a common regulatory framework for electronic communications networks and services (Framework Directive).