According to Article 48 of the Treaty on the European Union (TEU), the founding treaties of the Union can only be amended through a three-step procedure. First, the Council calls an Intergovernmental Conference (IGC), after having consulted the European Parliament (EP) and the Commission. Second, within the framework of the IGC, representatives of the governments of the Member States negotiate and sign the amendments to the treaties by common accord. Third, the agreement is submitted to national ratification procedures. When all three steps are concluded, each Member State having ratified the amendments to the treaty, the changes enter into force.