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Treaty

Statute of the International Atomic Energy Agency

Date modified Regarding
16-01-2026 Party
Details

Party

Maldives added

  • Ratification: 04-12-2025 (R)
  • Entry into force: 04-12-2025
  • Reservations / Declarations: No
  • Objections: No
16-12-2024 Party
Details

Party

Somalia added

  • Ratification: 15-11-2024 (R)
  • Entry into force: 15-11-2024
  • Reservations / Declarations: No
  • Objections: No
16-11-2024 Party
Details

Party

Cook Islands added

  • Ratification: 17-10-2024 (R)
  • Entry into force: 17-10-2024
  • Reservations / Declarations: No
  • Objections: No
05-10-2023 Party
Details

Party

Guinea added

  • Ratification: 19-09-2023 (R)
  • Entry into force: 19-09-2023
  • Reservations / Declarations: No
  • Objections: No
10-05-2023 Party
Details

Party

Cabo Verde added

  • Ratification: 04-04-2023 (R)
  • Entry into force: 04-04-2023
  • Reservations / Declarations: No
  • Objections: No
06-02-2023 New treaty
Details

General information

  • Entry into force: 29-07-1957

Kingdom part

Netherlands (in Europe)

  • Entry into force: 30-07-1957

Netherlands (Bonaire)

  • Entry into force: 10-10-2010

Netherlands (Sint Eustatius)

  • Entry into force: 10-10-2010

Netherlands (Saba)

  • Entry into force: 10-10-2010

Aruba

  • Entry into force: 01-01-1986

Curaçao

  • Entry into force: 10-10-2010

Sint Maarten

  • Entry into force: 10-10-2010

Party

Afghanistan

  • Signature: 23-01-1957
  • Ratification: 31-05-1957 (R)
  • Entry into force: 29-07-1957

Albania

  • Signature: 26-10-1956
  • Ratification: 23-08-1957 (R)
  • Entry into force: 23-08-1957

Algeria

  • Ratification: 24-12-1963 (R)
  • Entry into force: 24-12-1963

Angola

  • Ratification: 09-11-1999 (R)
  • Entry into force: 09-11-1999

Argentina

  • Signature: 26-10-1956
  • Ratification: 03-10-1957 (R)
  • Entry into force: 03-10-1957

Armenia

  • Ratification: 27-09-1993 (R)
  • Entry into force: 27-09-1993

Australia

  • Signature: 26-10-1956
  • Ratification: 29-07-1957 (R)
  • Entry into force: 29-07-1957

Austria

  • Signature: 26-10-1956
  • Ratification: 10-05-1957 (R)
  • Entry into force: 29-07-1957

Azerbaijan

  • Ratification: 30-05-2001 (R)
  • Entry into force: 30-05-2001

Bangladesh

  • Ratification: 27-09-1972 (R)
  • Entry into force: 27-09-1972

Belarus

  • Signature: 26-10-1956
  • Ratification: 08-04-1957 (R)
  • Entry into force: 29-07-1957

Belgium

  • Signature: 26-10-1956
  • Ratification: 29-04-1958 (R)
  • Entry into force: 29-04-1958

Belize

  • Ratification: 31-03-2006 (R)
  • Entry into force: 31-03-2006

Benin

  • Ratification: 26-05-1999 (R)
  • Entry into force: 26-05-1999

Bolivia

  • Signature: 26-10-1956
  • Ratification: 15-03-1963 (R)
  • Entry into force: 15-03-1963

Bosnia and Herzegovina

  • Ratification: 19-09-1995 (R)
  • Entry into force: 19-09-1995

Botswana

  • Ratification: 20-03-2002 (R)
  • Entry into force: 20-03-2002

Brazil

  • Signature: 26-10-1956
  • Ratification: 29-07-1957 (R)
  • Entry into force: 29-07-1957

Bulgaria

  • Signature: 26-10-1956
  • Ratification: 17-08-1957 (R)
  • Entry into force: 17-08-1957

Burkina Faso

  • Ratification: 14-09-1998 (R)
  • Entry into force: 14-09-1998

Cambodia

  • Signature: 26-10-1956
  • Ratification: 06-02-1958 (R)
  • Entry into force: 06-02-1958

Cameroon

  • Ratification: 13-07-1964 (R)
  • Entry into force: 13-07-1964

Canada

  • Signature: 26-10-1956
  • Ratification: 29-07-1957 (R)
  • Entry into force: 29-07-1957

Central African Republic

  • Ratification: 05-01-2001 (R)
  • Entry into force: 05-01-2001

Chad

  • Ratification: 02-11-2005 (R)
  • Entry into force: 02-11-2005

Chile

  • Signature: 26-10-1956
  • Ratification: 19-09-1960 (R)
  • Entry into force: 19-09-1960

China

  • Ratification: 01-01-1984 (R)
  • Entry into force: 01-01-1984

Colombia

  • Signature: 26-10-1956
  • Ratification: 30-09-1960 (R)
  • Entry into force: 30-09-1960

Comoros

  • Ratification: 17-09-2020 (R)
  • Entry into force: 17-09-2020

Costa Rica

  • Signature: 26-10-1956
  • Ratification: 25-03-1965 (R)
  • Entry into force: 25-03-1965

Côte d'Ivoire

  • Ratification: 19-11-1963 (R)
  • Entry into force: 19-11-1963

Croatia

  • Ratification: 12-02-1993 (R)
  • Entry into force: 12-02-1993

Cuba

  • Signature: 26-10-1956
  • Ratification: 01-10-1957 (R)
  • Entry into force: 01-10-1957

Cyprus

  • Ratification: 07-06-1965 (R)
  • Entry into force: 07-06-1965

Czech Republic

  • Ratification: 27-09-1993 (R)
  • Entry into force: 27-09-1993

Czechoslovakia (<01-01-1993)

  • Signature: 26-10-1956
  • Ratification: 05-07-1957 (R)
  • Entry into force: 29-07-1957

Democratic People's Republic of Korea

  • Ratification: 18-09-1974 (R)
  • Entry into force: 18-09-1974

Democratic Republic of the Congo

  • Ratification: 10-10-1961 (R)
  • Entry into force: 10-10-1961

Denmark

  • Signature: 26-10-1956
  • Ratification: 16-07-1957 (R)
  • Entry into force: 16-07-1957

Dominican Republic

  • Signature: 26-10-1956
  • Ratification: 11-07-1957 (R)
  • Entry into force: 29-07-1957

Ecuador

  • Signature: 26-10-1956
  • Ratification: 03-03-1958 (R)
  • Entry into force: 03-03-1958

Egypt

  • Signature: 26-10-1956
  • Ratification: 04-09-1957 (R)
  • Entry into force: 04-09-1957

El Salvador

  • Signature: 26-10-1956
  • Ratification: 22-11-1957 (R)
  • Entry into force: 22-11-1957

Eritrea

  • Ratification: 20-12-2002 (R)
  • Entry into force: 20-12-2002

Estonia

  • Ratification: 31-01-1992 (R)
  • Entry into force: 31-01-1992

Ethiopia

  • Signature: 26-10-1956
  • Ratification: 30-09-1957 (R)
  • Entry into force: 30-09-1957

Finland

  • Ratification: 07-01-1958 (R)
  • Entry into force: 07-01-1958

France

  • Signature: 26-10-1956
  • Ratification: 29-07-1957 (R)
  • Entry into force: 29-07-1957

Gabon

  • Ratification: 21-01-1964 (R)
  • Entry into force: 21-01-1964

Gambia, The

  • Ratification: 03-01-2023 (R)
  • Entry into force: 03-01-2023

Georgia

  • Ratification: 23-02-1996 (R)
  • Entry into force: 23-02-1996

Germany

  • Signature: 26-10-1956
  • Ratification: 01-10-1957 (R)
  • Entry into force: 01-10-1957

Ghana

  • Ratification: 28-09-1960 (R)
  • Entry into force: 28-09-1960

Greece

  • Signature: 26-10-1956
  • Ratification: 30-09-1957 (R)
  • Entry into force: 30-09-1957

Guatemala

  • Signature: 26-10-1956
  • Ratification: 29-03-1957 (R)
  • Entry into force: 29-03-1957

Haïti

  • Signature: 26-10-1956
  • Ratification: 07-10-1957 (R)
  • Entry into force: 07-10-1957

Holy See

  • Signature: 26-10-1956
  • Ratification: 20-08-1957 (R)
  • Entry into force: 20-08-1957

Honduras

  • Ratification: 24-02-2003 (R)
  • Entry into force: 24-02-2003

Hungary

  • Signature: 26-10-1956
  • Ratification: 08-08-1957 (R)
  • Entry into force: 08-08-1957

Iceland

  • Signature: 26-10-1956
  • Ratification: 06-08-1957 (R)
  • Entry into force: 06-08-1957

India

  • Signature: 26-10-1956
  • Ratification: 16-07-1957 (R)
  • Entry into force: 29-07-1957

Indonesia

  • Signature: 26-10-1956
  • Ratification: 07-08-1957 (R)
  • Entry into force: 07-08-1957

Iran

  • Signature: 26-10-1956
  • Ratification: 16-09-1958 (R)
  • Entry into force: 16-09-1958

Iraq

  • Signature: 15-01-1957
  • Ratification: 04-03-1959 (R)
  • Entry into force: 04-03-1959

Ireland

  • Ratification: 06-01-1970 (R)
  • Entry into force: 06-01-1970

Israel

  • Signature: 26-10-1956
  • Ratification: 12-07-1957 (R)
  • Entry into force: 29-07-1957

Italy

  • Signature: 15-11-1956
  • Ratification: 30-09-1957 (R)
  • Entry into force: 30-09-1957

Jamaica

  • Ratification: 29-12-1965 (R)
  • Entry into force: 29-12-1965

Japan

  • Signature: 26-10-1956
  • Ratification: 16-07-1957 (R)
  • Entry into force: 29-07-1957

Jordan

  • Ratification: 18-04-1966 (R)
  • Entry into force: 18-04-1966

Kazakhstan

  • Ratification: 14-02-1994 (R)
  • Entry into force: 14-02-1994

Kenya

  • Ratification: 12-07-1965 (R)
  • Entry into force: 12-07-1965

Kuwait

  • Ratification: 01-12-1964 (R)
  • Entry into force: 01-12-1964

Kyrgyzstan

  • Ratification: 10-09-2003 (R)
  • Entry into force: 10-09-2003

Laos

  • Signature: 17-01-1957

Latvia

  • Ratification: 10-04-1997 (R)
  • Entry into force: 10-04-1997

Lebanon

  • Signature: 26-10-1956
  • Ratification: 29-06-1961 (R)
  • Entry into force: 29-06-1961

Liberia

  • Signature: 26-10-1956
  • Ratification: 05-10-1962 (R)
  • Entry into force: 05-10-1962

Libya

  • Signature: 26-10-1956
  • Ratification: 09-09-1963 (R)
  • Entry into force: 09-09-1963

Liechtenstein

  • Ratification: 13-12-1968 (R)
  • Entry into force: 13-12-1968

Lithuania

  • Ratification: 18-11-1993 (R)
  • Entry into force: 18-11-1993

Luxembourg

  • Signature: 18-01-1957
  • Ratification: 29-01-1958 (R)
  • Entry into force: 29-01-1958

Madagascar

  • Ratification: 22-03-1965 (R)
  • Entry into force: 22-03-1965

Malawi

  • Ratification: 02-10-2006 (R)
  • Entry into force: 02-10-2006

Malaysia

  • Ratification: 15-01-1969 (R)
  • Entry into force: 15-01-1969

Mali

  • Ratification: 10-08-1961 (R)
  • Entry into force: 10-08-1961

Malta

  • Ratification: 29-09-1997 (R)
  • Entry into force: 29-09-1997

Marshall Islands

  • Ratification: 26-01-1994 (R)
  • Entry into force: 26-01-1994

Mauritania

  • Ratification: 23-11-2004 (R)
  • Entry into force: 23-11-2004

Mauritius

  • Ratification: 31-12-1974 (R)
  • Entry into force: 31-12-1974

Mexico

  • Signature: 07-12-1956
  • Ratification: 07-04-1958 (R)
  • Entry into force: 07-04-1958

Moldova

  • Ratification: 24-09-1997 (R)
  • Entry into force: 24-09-1997

Monaco

  • Signature: 26-10-1956
  • Ratification: 19-09-1957 (R)
  • Entry into force: 19-09-1957

Mongolia

  • Ratification: 20-09-1973 (R)
  • Entry into force: 20-09-1973

Montenegro

  • Ratification: 30-10-2006 (R)
  • Entry into force: 30-10-2006

Morocco

  • Signature: 09-01-1957
  • Ratification: 17-09-1957 (R)
  • Entry into force: 17-09-1957

Mozambique

  • Ratification: 18-09-2006 (R)
  • Entry into force: 18-09-2006

Myanmar

  • Signature: 09-01-1957
  • Ratification: 18-10-1957 (R)
  • Entry into force: 18-10-1957

Namibia

  • Ratification: 17-02-1983 (R)
  • Entry into force: 17-02-1983

Netherlands, the Kingdom of the

  • Signature: 26-10-1956
  • Ratification: 30-07-1957 (R)
  • Entry into force: 30-07-1957

New Zealand

  • Signature: 26-10-1956
  • Ratification: 13-09-1957 (R)
  • Entry into force: 13-09-1957

Nicaragua

  • Ratification: 25-03-1977 (R)
  • Entry into force: 25-03-1977

Niger

  • Ratification: 27-03-1969 (R)
  • Entry into force: 27-03-1969

Nigeria

  • Ratification: 25-03-1964 (R)
  • Entry into force: 25-03-1964

North Macedonia

  • Ratification: 25-02-1994 (R)
  • Entry into force: 25-02-1994

Norway

  • Signature: 26-10-1956
  • Ratification: 10-06-1957 (R)
  • Entry into force: 10-06-1957

Pakistan

  • Signature: 26-10-1956
  • Ratification: 02-05-1957 (R)
  • Entry into force: 29-07-1957

Palau

  • Ratification: 02-03-2007 (R)
  • Entry into force: 02-03-2007

Panama

  • Signature: 26-10-1956
  • Ratification: 02-03-1966 (R)
  • Entry into force: 02-03-1966

Paraguay

  • Signature: 26-10-1956
  • Ratification: 30-09-1957 (R)
  • Entry into force: 30-09-1957

Peru

  • Signature: 26-10-1956
  • Ratification: 30-09-1957 (R)
  • Entry into force: 30-09-1957

Philippines

  • Signature: 26-10-1956
  • Ratification: 02-09-1958 (R)
  • Entry into force: 02-09-1958

Poland

  • Signature: 26-10-1956
  • Ratification: 31-07-1957 (R)
  • Entry into force: 31-07-1957

Portugal

  • Signature: 26-10-1956
  • Ratification: 12-07-1957 (R)
  • Entry into force: 29-07-1957

Qatar

  • Ratification: 27-02-1976 (R)
  • Entry into force: 27-02-1976

Republic of Korea, the

  • Signature: 26-10-1956
  • Ratification: 08-08-1957 (R)
  • Entry into force: 08-08-1957

Romania

  • Signature: 26-10-1956
  • Ratification: 12-04-1957 (R)
  • Entry into force: 29-07-1957

Russian Federation

  • Signature: 26-10-1956
  • Ratification: 08-04-1957 (R)
  • Entry into force: 29-07-1957

Saint Kitts and Nevis

  • Ratification: 09-02-2022 (R)
  • Entry into force: 09-02-2022

Samoa

  • Ratification: 07-04-2021 (R)
  • Entry into force: 07-04-2021

Saudi Arabia

  • Ratification: 13-12-1962 (R)
  • Entry into force: 13-12-1962

Senegal

  • Ratification: 01-11-1960 (R)
  • Entry into force: 01-11-1960

Serbia

  • Ratification: 31-10-2001 (R)
  • Entry into force: 31-10-2001

Seychelles

  • Ratification: 22-04-2003 (R)
  • Entry into force: 22-04-2003

Sierra Leone

  • Ratification: 04-06-1967 (R)
  • Entry into force: 04-06-1967

Singapore

  • Ratification: 05-01-1967 (R)
  • Entry into force: 05-01-1967

Slovakia

  • Ratification: 27-09-1993 (R)
  • Entry into force: 27-09-1993

Slovenia

  • Ratification: 21-09-1992 (R)
  • Entry into force: 21-09-1992

South Africa

  • Signature: 26-10-1956
  • Ratification: 06-06-1957 (R)
  • Entry into force: 29-07-1957

Spain

  • Signature: 26-10-1956
  • Ratification: 26-08-1957 (R)
  • Entry into force: 26-08-1957

Sri Lanka

  • Signature: 26-10-1956
  • Ratification: 22-08-1957 (R)
  • Entry into force: 22-08-1957

Sudan

  • Signature: 26-10-1956
  • Ratification: 17-07-1958 (R)
  • Entry into force: 17-07-1958

Sweden

  • Signature: 26-10-1956
  • Ratification: 19-06-1957 (R)
  • Entry into force: 29-07-1957

Switzerland

  • Signature: 26-10-1956
  • Ratification: 05-04-1957 (R)
  • Entry into force: 29-07-1957

Syria

  • Signature: 26-10-1956
  • Ratification: 06-06-1963 (R)
  • Entry into force: 06-06-1963

Tajikistan

  • Ratification: 10-09-2001 (R)
  • Entry into force: 10-09-2001

Tanzania

  • Ratification: 06-01-1976 (R)
  • Entry into force: 06-01-1976

Thailand

  • Signature: 26-10-1956
  • Ratification: 15-10-1957 (R)
  • Entry into force: 15-10-1957

Tonga

  • Ratification: 02-03-2022 (R)
  • Entry into force: 02-03-2022

Tunisia

  • Signature: 08-01-1957
  • Ratification: 14-10-1957 (R)
  • Entry into force: 14-10-1957

Türkiye

  • Signature: 26-10-1956
  • Ratification: 19-07-1957 (R)
  • Entry into force: 29-07-1957

Uganda

  • Ratification: 30-08-1967 (R)
  • Entry into force: 30-08-1967

Ukraine

  • Signature: 26-10-1956
  • Ratification: 31-07-1957 (R)
  • Entry into force: 31-07-1957

United Arab Emirates

  • Ratification: 15-01-1976 (R)
  • Entry into force: 15-01-1976

United Kingdom

  • Signature: 26-10-1956
  • Ratification: 29-07-1957 (R)
  • Entry into force: 29-07-1957

United States of America

  • Signature: 26-10-1956
  • Ratification: 29-07-1957 (R)
  • Entry into force: 29-07-1957

Uruguay

  • Signature: 26-10-1956
  • Ratification: 22-01-1963 (R)
  • Entry into force: 22-01-1963

Uzbekistan

  • Ratification: 26-01-1994 (R)
  • Entry into force: 26-01-1994

Venezuela

  • Signature: 26-10-1956
  • Ratification: 19-08-1957 (R)
  • Entry into force: 19-08-1957

Vietnam

  • Signature: 26-10-1956
  • Ratification: 24-09-1957 (R)
  • Entry into force: 24-09-1957

Yemen

  • Ratification: 14-10-1994 (R)
  • Entry into force: 14-10-1994

Yugoslavia (< 25-06-1991)

  • Signature: 26-10-1956
  • Ratification: 17-09-1957 (R)
  • Entry into force: 17-09-1957

Zambia

  • Ratification: 08-01-1969 (R)
  • Entry into force: 08-01-1969

Zimbabwe

  • Ratification: 01-08-1986 (R)
  • Entry into force: 01-08-1986