# Member states of the International Atomic Energy Agency

The member states of the International Atomic Energy Agency (IAEA) are those states which have joined the international organization that seeks to promote the peaceful use of nuclear energy, and to inhibit its use for any military purpose, including nuclear weapons. The IAEA was established as an autonomous organization on 29 July 1957. Though established independently of the United Nations through its own international treaty, the IAEA Statute, the IAEA reports to both the UN General Assembly and Security Council. During 1956, an IAEA Statute Conference was held to draft the founding documents for the IAEA, and the IAEA Statute was completed at a conference in 1957.

## List of member states

As of November 2024, the IAEA has 180 member states. Most UN members and the Holy See are member states of the IAEA. The dates of membership are listed below.
| State | Date of ratification |
| Afghanistan | May 31, 1957 |
| Albania | August 23, 1957 |
| Algeria | December 24, 1963 |
| Angola | November 9, 1999 |
| Antigua and Barbuda | October 14, 2015 |
| Argentina | October 3, 1957 |
| Armenia | September 27, 1993 |
| Australia | July 29, 1957 |
| Austria | May 10, 1957 |
| Azerbaijan | May 30, 2001 |
| Bahamas | January 7, 2014 |
| Bahrain | June 23, 2009 |
| Bangladesh | September 27, 1972 |
| Barbados | November 20, 2015 |
| Belarus | April 8, 1957 |
| Belgium | April 29, 1958 |
| Belize | March 31, 2006 |
| Benin | May 26, 1999 |
| Bolivia | March 15, 1963 |
| Bosnia and Herzegovina | September 19, 1995 |
| Botswana | March 20, 2002 |
| Brazil | July 29, 1957 |
| Brunei | February 18, 2014 |
| Bulgaria | August 17, 1957 |
| Burkina Faso | September 14, 1998 |
| Burundi | June 24, 2009 |
| Cambodia | November 23, 2009 |
| Cameroon | July 13, 1964 |
| Canada | July 29, 1957 |
| Cape Verde | April 4, 2023 |
| Central African Republic | January 5, 2001 |
| Chad | November 2, 2005 |
| Chile | September 19, 1960 |
| China | January 1, 1984 |
| Colombia | September 30, 1960 |
| Comoros | September 17, 2020 |
| Cook Islands | October 17, 2024 |
| Republic of the Congo | July 15, 2009 |
| Costa Rica | March 25, 1965 |
| Cote d'Ivoire | November 19, 1963 |
| Croatia | February 12, 1993 |
| Cuba | October 1, 1957 |
| Cyprus | June 7, 1965 |
| Czech Republic | September 27, 1993 |
| Democratic Republic of the Congo | October 10, 1961 |
| Denmark | July 16, 1957 |
| Djibouti | March 6, 2015 |
| Dominica | February 17, 2012 |
| Dominican Republic | July 11, 1957 |
| Ecuador | March 3, 1958 |
| Egypt | September 4, 1957 |
| El Salvador | November 22, 1957 |
| Eritrea | December 20, 2002 |
| Estonia | January 31, 1992 |
| Eswatini | February 15, 2013 |
| Ethiopia | September 30, 1957 |
| Fiji | November 2, 2012 |
| Finland | January 7, 1958 |
| France | July 29, 1957 |
| Gabon | January 21, 1964 |
| Gambia | January 3, 2023 |
| Georgia | February 23, 1996 |
| Germany | October 1, 1957 |
| Ghana | September 28, 1960 |
| Greece | September 30, 1957 |
| Grenada | April 30, 2018 |
| Guatemala | March 29, 1957 |
| Guinea | September 19, 2023 |
| Guyana | January 27, 2015 |
| Haiti | October 7, 1957 |
| Holy See | August 20, 1957 |
| Honduras | February 24, 2003 |
| Hungary | August 8, 1957 |
| Iceland | August 6, 1957 |
| India | July 16, 1957 |
| Indonesia | August 7, 1957 |
| Iran | September 16, 1958 |
| Iraq | March 4, 1959 |
| Ireland | January 6, 1970 |
| Israel | July 12, 1957 |
| Italy | September 30, 1957 |
| Jamaica | December 29, 1965 |
| Japan | July 16, 1957 |
| Jordan | April 18, 1966 |
| Kazakhstan | February 14, 1994 |
| Kenya | July 12, 1965 |
| South Korea | August 8, 1957 |
| Kuwait | December 1, 1964 |
| Kyrgyzstan | September 10, 2003 |
| Laos | November 4, 2011 |
| Latvia | April 10, 1997 |
| Lebanon | June 29, 1961 |
| Lesotho | July 13, 2009 |
| Liberia | October 5, 1962 |
| Libya | September 9, 1963 |
| Liechtenstein | December 13, 1968 |
| Lithuania | November 18, 1993 |
| Luxembourg | January 29, 1958 |
| Madagascar | March 22, 1965 |
| Malawi | October 2, 2006 |
| Malaysia | January 15, 1969 |
| Mali | August 10, 1961 |
| Malta | September 29, 1997 |
| Marshall Islands | January 26, 1994 |
| Mauritania | November 23, 2004 |
| Mauritius | December 31, 1974 |
| Mexico | April 7, 1958 |
| Moldova | September 24, 1997 |
| Monaco | September 19, 1957 |
| Mongolia | September 20, 1973 |
| Montenegro | October 30, 2006 |
| Morocco | September 17, 1957 |
| Mozambique | September 18, 2006 |
| Myanmar | October 18, 1957 |
| Namibia | February 17, 1983 |
| Nepal | July 8, 2008 |
| Netherlands | July 30, 1957 |
| New Zealand | September 13, 1957 |
| Nicaragua | March 25, 1977 |
| Niger | March 27, 1969 |
| Nigeria | March 25, 1964 |
| North Macedonia | February 25, 1994 |
| Norway | June 10, 1957 |
| Oman | February 5, 2009 |
| Pakistan | May 2, 1957 |
| Palau | March 2, 2007 |
| Panama | March 2, 1966 |
| Papua New Guinea | April 4, 2012 |
| Paraguay | September 30, 1957 |
| Peru | September 30, 1957 |
| Philippines | September 2, 1958 |
| Poland | July 31, 1957 |
| Portugal | July 12, 1957 |
| Qatar | February 27, 1976 |
| Romania | April 12, 1957 |
| Russia | April 8, 1957 |
| Rwanda | September 4, 2012 |
| Saint Kitts and Nevis | February 9, 2022 |
| Saint Lucia | February 5, 2019 |
| Saint Vincent and the Grenadines | December 4, 2017 |
| Samoa | April 7, 2021 |
| San Marino | November 25, 2013 |
| Saudi Arabia | December 13, 1962 |
| Senegal | November 1, 1960 |
| Serbia | October 31, 2001 |
| Seychelles | April 22, 2003 |
| Sierra Leone | June 4, 1967 |
| Singapore | January 5, 1967 |
| Slovakia | September 27, 1993 |
| Slovenia | September 21, 1992 |
| Somalia | November 15, 2024 |
| South Africa | June 6, 1957 |
| Spain | August 26, 1957 |
| Sri Lanka | August 22, 1957 |
| Sudan | July 17, 1958 |
| Sweden | June 19, 1957 |
| Switzerland | April 5, 1957 |
| Syria | June 6, 1963 |
| Tajikistan | September 10, 2001 |
| Tanzania | January 6, 1976 |
| Thailand | October 15, 1957 |
| Togo | November 1, 2012 |
| Tonga | March 2, 2022 |
| Trinidad and Tobago | November 9, 2012 |
| Tunisia | October 14, 1957 |
| Turkey | July 19, 1957 |
| Turkmenistan | February 16, 2016 |
| Uganda | August 30, 1967 |
| Ukraine | July 31, 1957 |
| United Arab Emirates | January 15, 1976 |
| United Kingdom | July 29, 1957 |
| United States of America | July 29, 1957 |
| Uruguay | January 22, 1963 |
| Uzbekistan | January 26, 1994 |
| Vanuatu | September 9, 2015 |
| Venezuela | August 19, 1957 |
| Vietnam | September 24, 1957 |
| Yemen | October 14, 1994 |
| Zambia | January 8, 1969 |
| Zimbabwe | August 1, 1986 |

### Notes

* ↑ Originally joined on February 6, 1958 but withdrew on March 26, 2003.
* ↑ Joined as the Republic of China (Taiwan), which is currently only recognized by 11 UN member states, on 10 September 1957. However, the United Nations General Assembly vote to transfer China's seat to the People's Republic of China (PRC) in 1971, after which China ceased to be a member of the IAEA until the PRC joined on January 1, 1984.
* ↑ As Swaziland until 2018.
* ↑ Joined as West Germany. East Germany was also a member of the IAEA prior to German reunification.
* ↑ Originally joined on July 9, 1957 but withdrew on June 19, 1967.
* ↑ Originally joined on September 17, 1957 but withdrew on December 14, 1970.
* ↑ Listed under the provisional designation "The former Yugoslav Republic of Macedonia" until 2019.

## Non-member states
### Former member state

Four states have withdrawn from the IAEA at some point in the past, but three of them have since rejoined the AIEA. North Korea became a member in 1974, but withdrew in 1994 after the Board of Governors found it in non-compliance with its safeguards agreement and suspended most technical cooperation. Nicaragua became a member in 1957, withdrew its membership in 1970, and rejoined in 1977, Honduras joined in 1957, withdrew in 1967, and rejoined in 2003, while Cambodia joined in 1958, withdrew in 2003, and rejoined in 2009.
| State | Date of membership | Date of withdrawal of membership |
| North Korea | September 18, 1974 | June 13, 1994 |

### Observer state

The IAEA also has one observer state, the State of Palestine.
| State | Date of observer status |
| State of Palestine | September 28, 2023 |

#### Notes

* ↑ Palestine Liberation Organization originally granted observer status by the IAEA on 23 September 1976. Designation changed to "Palestine" on 29 September 1989, and "State of Palestine" on 28 September 2023.

### Other states

The remaining 14 UN member states that, as of 2024, have no relationship with the IAEA are:
* Andorra
* Bhutan
* Equatorial Guinea
* Guinea-Bissau
* Kiribati
* Maldives
* Micronesia
* Nauru
* São Tomé and Príncipe
* Solomon Islands
* South Sudan
* Suriname
* Timor-Leste
* Tuvalu