The agreement referred to in Article 1 shall ensure that accession of the Union shall not affect the competences of the Union or the powers of its institutions.
Áiritheoidh an comhaontú dá dtagraítear in Airteagal 1 nach ndéanfaidh aontachas an Aontais difear d'inniúlachtaí an Aontais ná do chumhachtaí a chuid institiúidí .