Treaty on the Functioning of the European Union Treaty on the Functioning of the European Union The Treaty on the Functioning of the European Union (2007) is one of two primary Treaties of the European Union, alongside the Treaty on European Union (TEU). Originating as the Treaty of Rome, the TFEU forms the detailed basis of European Union law, by setting out the scope of the EU's authority to legislate and the principles of law in those areas where EU law operates. The TFEU originated as the treaty establishing the European Economic Community (the EEC treaty), signed in Rome on 25 March 1957. On 7 February 1992, the
President of the European Commission Functioning of the European Union; a founding treaty of the union, which explains that the enumeration of presidents which ends with the present position starts with the first President of the Commission of the European Economic Community. The European Union is also the legal successor of the European Economic Community, or the European Community as it was named between 1993 and 2009. The establishment of the European Union in 1993 upon the entry into force of the Maastricht Treaty (formally the Treaty on European Union) did not affect the name of the position. Upon its entry into force in 2009,