As soon as it becomes clear that the Council cannot accept Parliament's amendments, it informs the Parliament thereof. In Parliament, preparations for the appointment of the EP delegation to the Conciliation Committee start, in order to convene the Conciliation Committee as soon as possible, within the time limits set out in the Treaty.
The EP delegation to the Conciliation Committee is chaired by one of the three Vice-Presidents of the Parliament responsible for conciliation. The rapporteur and the Chair of the parliamentary committee responsible are also members ex officio of the delegation. The remaining members of the delegation are appointed by each political group for each particular conciliation procedure. Most of them are from the committee responsible or from the opinion-giving or associated committees.
The Parliament delegation matches in size the Council delegation which consists of one representative per Member State. At its constituent meeting the Parliament delegation gives a mandate to its negotiating team - normally the Vice-President, responsible for conciliation, as Chair of the delegation, the Chair of the responsible committee and the rapporteur(s) - to start negotiations with the Council in 'trilogue' meetings. The Commission is present at all meetings of the Parliament delegation.