The Member States shall exercise their competence to the extent that the Union has not exercised, or has decided to cease exercising, its competence.
Feidhmeoidh na Ballstáit a n-inniúlachta mhéad nach bhfuil inniúlacht an Aontais feidhmithe aige, nó gur chinn an tAontas scor dá feidhmiú.