This site has been archived on 31/10/2011
31/10/2011

Institutional Reform of the European Union - Main dates

This calendar sets out all the main stages and significant events in Europe’s institutional reform. It includes links to the full texts of the Treaties and declarations and to the sites of the institutions concerned with the future of Europe.

18 and 19 October 2007:

Lisbon Informal European Council:
Political agreement on the text of the new Treaty

23 July 2007:

Opening of the 2007 Intergovernemental Conference

21-22 June 2007:

Brussels European Council  [289 KB]
On 23rd June EU leaders agreed on a mandate for an Intergovernmental Conference which would draw up a new Treaty on institutional reform by the end of 2007.

25 March 2007:

Berlin Declaration: [77.2 KB]
Declaration on the occasion of the 50th anniversary of the signature of the Treaties of Rome

15-16 June 2006:

Brussels European Council   [238 KB]
Statement from Heads of State and Government on relaunching the ratification procedure

16 and 17 June 2005:

Brussels European Council   [242 KB]
Declaration of the Chiefs of State or Governments on the Ratification of the Constitution

2004-2006:

Ratification procedure of the Constitution by Member States

29 October 2004:

Signature of the Constitution

16 and 17 June 2004:

Brussels European Council   [205 KB]
Political agreement on the text of the Constitution

1 May 2004:

EU enlargement

4 October 2003:

Opening of the 2003/2004 IGC  

20 July 2003:

Presentation of the draft Constitution 

1 February 2003

Entry into force of the Treaty of Nice

28 February 2002:

European Convention : inaugural session

15 December 2001:

Laeken European Council

26 February 2001:

Signature of the Treaty of Nice:

7-10 December 2000:

Nice European Council :

14 February 2000:

Opening of the  2000 Intergovernemental Conference