About

With 56 States from Europe, Central Asia and North America, the Organization for Security and Co-operation in Europe (OSCE) forms the largest regional security organization in the world.

A | B | C | D | E | F | G | H | I | K | L | M | N | P | R | S | T | U

Albania

• Admission to the OSCE: 19 June 1991
• Signature of the Helsinki Final Act: 16 September 1991; signature of Charter of Paris: 17 September 1991

Andorra

• Admission to the OSCE: 25 April 1996
• Signature of the Helsinki Final Act: 10 November 1999; signature of Charter of Paris: 17 February 1998

Armenia

• Admission to the OSCE: 30 January 1992
• Signature of the Helsinki Final Act: 8 July 1992; signature of Charter of Paris: 17 April 1992

Austria

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Azerbaijan

• Admission to the OSCE: 30 January 1992
• Signature of the Helsinki Final Act: 8 July 1992; signature of Charter of Paris: 20 December 1993

Belarus

• Admission to the OSCE: 30 January 1992
• Signature of the Helsinki Final Act: 26 February 1992; signature of Charter of Paris: 8 April 1993

Belgium

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Bosnia and Herzegovina

• Admission to the OSCE: 30 April 1992
• Signature of the Helsinki Final Act: 8 July 1992

Bulgaria

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Canada

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Croatia

• Admission to the OSCE: 24 March 1992
• Signature of the Helsinki Final Act: 8 July 1992

Cyprus

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Czech Republic

• Admission to the OSCE: 1 January 1993

Denmark

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Estonia

• Admission to the OSCE: 10 September 1991
• Signature of the Helsinki Final Act: 14 October 1992; signature of Charter of Paris: 6 December 1991

Finland

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

France

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Georgia

• Admission to the OSCE: 24 March 1992
• Signature of the Helsinki Final Act: 8 July 1992; signature of Charter of Paris: 21 January 1994

Germany

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Greece

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Holy See

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Hungary

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Iceland

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Ireland

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Italy

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Kazakhstan

• Admission to the OSCE: 30 January 1992
• Signature of the Helsinki Final Act: 8 July 1992; signature of Charter of Paris: 23 September 1992

Kyrgyzstan

• Admission to the OSCE: 30 January 1992
• Signature of the Helsinki Final Act: 8 July 1992; signature of Charter of Paris: 3 June 1994

Latvia

• Admission to the OSCE: 10 September 1991
• Signature of the Helsinki Final Act: 14 October 1991; signature of Charter of Paris: 6 December 1991

Liechtenstein

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Lithuania

• Admission to the OSCE: 10 September 1991
• Signature of the Helsinki Final Act: 14 October 1991; signature of Charter of Paris: 6 December 1991

Luxembourg

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

The former Yugoslav Republic of Macedonia

• Admission to the OSCE: 12 October 1995

Malta

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Moldova

• Admission to the OSCE: 30 January 1992
• Signature of the Helsinki Final Act: 26 February 1992; signature of Charter of Paris: 29 January 1993

Monaco

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Montenegro

• Admission to the OSCE: 22 June 2006
• Signature of the Helsinki Final Act: 1 September 2006

Netherlands

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Norway

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Poland

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Portugal

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Romania

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Russian Federation

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

San Marino

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Serbia

• Admission to the OSCE: 10 November 2000

Slovak Republic

• Admission to the OSCE: 1 January 1993

Slovenia

• Admission to the OSCE: 24 March 1992
• Signature of the Helsinki Final Act: 8 July 1992; signature of Charter of Paris: 8 March 1993

Spain

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Sweden

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Switzerland

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Tajikistan

• Admission to the OSCE: 30 January 1992
• Signature of the Helsinki Final Act: 26 February 1992

Turkey

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Turkmenistan

• Admission to the OSCE: 30 January 1992
• Signature of the Helsinki Final Act: 8 July 1992

Ukraine

• Admission to the OSCE: 30 January 1992
• Signature of the Helsinki Final Act: 26 February 1992; signature of Charter of Paris: 16 June 1992

United Kingdom

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

United States of America

• Admission to the OSCE: 25 June 1973
• Signature of the Helsinki Final Act: 1 August 1975; signature of Charter of Paris: 21 November 1990

Uzbekistan

• Admission to the OSCE: 30 January 1992
• Signature of the Helsinki Final Act: 26 February 1992; signature of Charter of Paris: 27 October 1993