Treaty of Rome Treaty of Rome The Treaty on the Functioning of the European Union (TFEU; also referred to as the Treaty of Rome) is one of two treaties forming the constitutional basis of the European Union (EU), the other being the Treaty on European Union (TEU; also referred to as the "Treaty of Maastricht"). The Treaty of Rome brought about the creation of the European Economic Community (EEC), the best-known of the European Communities (EC). It was signed on 25 March 1957 by Belgium, France, Italy, Luxembourg, the Netherlands and West Germany and came into force on 1 January 1958. It remains
European Economic Community the European Union, though limited in some areas due to the pillar structure. Despite this, Parliament in particular has gained more power over legislation and security of the Commission. The Court was the highest authority in the law, settling legal disputes in the Community, while the Auditors had no power but to investigate. The EEC inherited some of the Institutions of the ECSC in that the Common Assembly and Court of Justice of the ECSC had their authority extended to the EEC and Euratom in the same role. However the EEC, and Euratom, had different executive bodies to the ECSC.