Treaties of the European Union the Functioning of the European Union (originally signed in Rome in 1957 as the Treaty establishing the European Economic Community, aka The Treaty of Rome), lay out how the EU operates, and there are a number of satellite treaties which are interconnected with them. The treaties have been repeatedly amended by other treaties over the 65 years since they were first signed. The consolidated version of the two core treaties is regularly published by the European Commission. The two principal treaties on which the EU is based are the Treaty on European Union (TEU; Maastricht Treaty, effective since 1993) and
Voting in the Council of the European Union analysis of the distribution of voting power under different voting rules in the EU Council often requires the use of complex computational methods that go beyond a mere calculation of vote share, such as the Shapley-Shubik index or the Banzhaf measure. According to Article 148 of the Treaty establishing the European Economic Community (EEC Treaty), acts of the Council required for their adoption: The values above are related to the EU-6, the founding member states. The treaty allocated the votes as follows: Under this system, Luxembourg had no voting power for acts proposed by the Commission. Article 148 of the