Any European State which wishes to become a member of the Union shall address its application to the Council. The European Parliament and national Parliaments shall be notified of this application. The Council shall act unanimously after consulting the Commission and after obtaining the consent of the European Parliament, which shall act by a majority of its component members. The conditions and arrangements for admission shall be the subject of an agreement between the Member States and the candidate State. That agreement shall be subject to ratification by each contracting State, in accordance with its respective constitutional requirements.