Treaties of The European Union - Ratified Treaties

Ratified Treaties

Signed
In force
Document		 1948
1948
Brussels Treaty		 1951
1952
Paris Treaty		 1954
1955
Modified Brussels Treaty		 1957
1958
Rome treaties		 1965
1967
Merger Treaty		 1975
N/A
European Council conclusion		 1985
1985
Schengen Treaty		 1986
1987
Single European Act		 1992
1993
Maastricht Treaty		 1997
1999
Amsterdam Treaty		 2001
2003
Nice Treaty		 2007
2009
Lisbon Treaty
Three pillars of the European Union:
European Communities:
European Atomic Energy Community (EURATOM)
European Coal and Steel Community (ECSC) Treaty expired in 2002 European Union (EU)
European Economic Community (EEC)
Schengen Rules European Community (EC)
TREVI Justice and Home Affairs (JHA)
Police and Judicial Co-operation in Criminal Matters (PJCC)
European Political Cooperation (EPC) Common Foreign and Security Policy (CFSP)
Unconsolidated bodies Western European Union (WEU)
Treaty terminated in 2011

Treaty Established/Amended Signed in Signed on Effective from Ceased
ECSC Treaty European Coal and Steel Community Paris, FR 01951-04-1818 April 1951 01952-07-2323 July 1952 02002-07-2323 July 2002
EEC Treaty European Economic Community Rome, IT 01957-03-2525 March 1957 01958-01-011 January 1958 in force
EURATOM Treaty European Atomic Energy Community Rome, IT 01957-03-2525 March 1957 01958-01-011 January 1958 in force
Convention on certain institutions
common to the European Communities		 Amended Previous
  • Established a common Assembly,
    a common Court of Justice and
    a common Economic and Social Committee
 Rome, IT 01957-03-2525 March 1957 01958-01-011 January 1958 01999-05-011 May 1999
Netherlands Antilles Convention OCT status for the Netherlands Antilles Brussels, BE 01962-11-1313 November 1962 01964-10-011 October 1964 in force
Merger Treaty Amended Previous
  • Executives of ECSC and EAEC
    combined with those of the EEC.
 Brussels, BE 01965-04-088 April 1965 01967-07-011 July 1967 01999-05-011 May 1999
First Budgetary Treaty Amended Previous
  • Partial budgetary powers to Parliament
 Luxembourg, LU 01970-04-2222 April 1970 01971-01-011 January 1971 in force
Treaty of Accession 1972 Enlarged to
  • Denmark, Republic of Ireland and the United Kingdom
 Brussels, BE 01972-01-2222 January 1972 01973-01-011 January 1973 in force
Second Budgetary Treaty Amended Previous
  • Greater budgetary powers to Parliament
    Established the Court of Auditors
    (see article for all changes).
 Brussels, BE 01975-07-2222 July 1975 01977-06-011 June 1977 in force
Treaty of Accession 1979 Enlarged to Greece Athens, GR 01979-05-2828 May 1979 01981-01-011 January 1981 in force
Greenland Treaty Withdrawal of Greenland Brussels, BE 01984-03-1313 March 1984 01985-01-011 January 1985 in force
Treaty of Accession 1985 Enlarged to Spain and Portugal Madrid, ES
Lisbon, PT		 01985-06-1212 June 1985 01986-01-011 January 1986 in force
Schengen Agreement Established open borders Schengen, LU 01985-06-1414 June 1985 01995-03-2626 March 1995 in force
Single European Act Amended Previous
  • Introduced the Single Market
    and European Political Cooperation
 Luxembourg, LU
The Hague, NL		 01986-02-1717 February 1986
01986-02-2828 February 1986		 01987-07-011 July 1987 in force
Treaty of Maastricht
European Union Amended Previous
  • EEC became European Community pillar
    of EU. Intergovernmental pillars of
    CFSP and JHA established.
 Maastricht, NL 01992-02-077 February 1992 01993-11-011 November 1993 in force
Treaty of Accession 1994 Enlarged to
  • Austria, Finland and Sweden
 Corfu, GR 01994-06-2424 June 1994 01995-01-011 January 1995 in force
Treaty of Amsterdam Amended Previous
  • Introduced the High Representative,
    transferred powers from JHA pillar to EC
    and integrated the Schengen Agreement
    (see article for all changes).
 Amsterdam, NL 01997-10-022 October 1997 01999-05-011 May 1999 in force
Treaty of Nice Amended Previous
  • Prepared the EU to cope with enlargement
    (see article for all changes).
 Nice, FR 02001-02-2626 February 2001 02003-02-011 February 2003 in force
Treaty of Accession 2003 Enlarged to
  • Czech Republic, Estonia, Cyprus,
    Latvia, Lithuania, Hungary, Malta,
    Poland, Slovenia and Slovakia
 Athens, GR 02003-04-1616 April 2003 02004-05-011 May 2004 in force
Treaty of Accession 2005 Enlarged to Bulgaria and Romania Luxembourg, LU 02005-04-2525 April 2005 02007-01-011 January 2007 in force
Treaty of Lisbon Amended Previous
  • Created European Council President,
    enhanced foreign policy,
    abolished pillar system, expanded
    Parliament's powers and QMV,
    made Rights charter binding.
 Lisbon, Portugal 02007-12-1313 December 2007 02009-12-011 December 2009 in force
Protocol on European Parliament seats Amending Protocol 36
  • Appointed 18 new members of the
    EP until the 2014 election, who would
    have been elected in 2009 if the
    Treaty of Lisbon had been in force.
    No seats were abolished, so the
    number of the MEPs temporarily
    increased to 754.
 Brussels, BE 02010-06-2323 June 2010 02011-12-011 December 2011 in force
Treaty establishing the ESM European Stability Mechanism Brussels, BE 02012-02-022 February 2012 02012-09-2727 September 2012 in force

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