2007 in the European Union

Incumbents

• Commission President – José Manuel Barroso, People's Party
• Council Presidency – Germany and Portugal
• Parliament President – Josep Borrell, Socialists. Hans-Gert Pöttering, People's Party
• High Representative – Javier Solana, Socialists

  Events

• 1 January – Bulgaria and Romania join the European Union.
• 1 January – Slovenia adopts the Euro as its official currency, replacing the tolar.
• 1 January – Irish becomes the 23rd official language of the EU.
• 1 January – Germany takes over the EU Presidency.
• 9 January – far right MEPs form a political group called Identity, Tradition and Sovereignty.
• 25 March – Berlin Declaration signed to mark the 50th anniversary of the Treaty of Rome.
• 1 June – The REACH directive, described as "most important piece of EU legislation for 20 years", comes into force.
• 23 June – EU leaders agree to a Reform Treaty to replace the Treaty establishing a Constitution for Europe rejected by Dutch and French voters in referendums.
• 1 July – Portugal takes over the Presidency from Germany.
• 23 July – Intergovernmental Conference on the Treaty of Lisbon starts.
• 13 December 2007 – Signing of the Treaty of Lisbon
• 21 December – Czech Republic, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, Slovakia and Slovenia implement the Schengen Agreement for overland borders and seaports.