Brussels and the European Union a provisional seat, though with the Common Assembly in Strasbourg as that was the only city with a large enough hemicycle (the one used by the Council of Europe). This agreement was temporary, and plans were set to relocate the institutions to Saarbrücken which would serve as a "European District", but this did not occur. The 1957 Treaties of Rome established two new communities, the European Economic Community (EEC) and the European Atomic Energy Community (Euratom). These shared the Assembly and Court of the ECSC but created two new sets of Councils and Commissions (equivalent to the ECSC's High Authority).
Voting in the Council of the European Union EEC Treaty, specifying the qualified majority voting system of the Council, was amended by Article 8 of the Accession Treaty regulating the enlargement of the community by Denmark, Ireland, and the United Kingdom. Acts of the Council now required for their adoption: These values were now related to the EU-9. The treaty allocated the votes as follows: Article 148 of the EEC Treaty, specifying the qualified majority voting system of the Council, was amended by Article 14 of the Accession Treaty regulating the enlargement of the community by Greece. Acts of the Council now required for their adoption: The votes