Without prejudice to Article 21, Member States shall require that undertakings which acquire information from another undertaking before, during or after the process of negotiating access or interconnection arrangements use that information solely for the purpose for which it was supplied and respect at all times the confidentiality of information transmitted or stored.
Gan dochar d'Airteagal 21, ceanglóidh na Ballstáit ar ghnóthais a fhaigheann faisnéis ó ghnóthais eile roimh phróiseas caibidlíochta do shocruithe rochtana nó idirnaisc nó lena linn nó ina dhiaidh, go n-úsáidfidh siad an fhaisnéis sin chun na críche ar cuireadh ar fáil í, agus chuige sin amháin agus go dtabharfaidh siad urraim do rúndacht na faisnéise a tarchuireadh nó a coimeádadh.