Member States shall ensure that the competences and powers of the national regulatory authorities or bodies, as well as the ways of making them accountable are clearly defined in law.
Áiritheoidh na Ballstáit go saineofar inniúlachtaí agus cumhachtaí na n-údarás nó na gcomhlachtaí rialála náisiúnta go soiléir ina ndlí, maille leis na bealaí a mbeidh siad cuntasach.