Det drejer sig om artikel 5a, stk. 3, i Rådets direktiv 90/387EØF af 28. juni 1990 om oprettelse af det indre marked for teletjenester ved gennemførelse af tilrådighedsstillelse af åbne net 16, som ændret ved Europa-Parlamentets og Rådets direktiv 97/51/EF af 6. oktober 1997 17.
The provision in question was Article 5a(3) of Council Directive 90/387/EEC of 28 June 1990 on the establishment of the internal market for telecommunications services through the implementation of open network provision, 16 as amended by Directive 97/51/EC of the European Parliament and of the Council of 6 October 1997.