International Atomic Energy Agency International Atomic Energy Agency The International Atomic Energy Agency (IAEA) is an 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 organisation 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 United Nations General Assembly and Security Council. The IAEA has its headquarters in Vienna, Austria. The IAEA has two "Regional Safeguards Offices" which are located in Toronto, Canada, and in Tokyo,
International Atomic Energy Agency acceptance of the IAEA Statute to the United States, which functions as the depositary Government for the IAEA Statute. The State is considered a member when its acceptance letter is deposited. The United States then informs the IAEA, which notifies other IAEA Member States. Signature and ratification of the Nuclear Non-Proliferation Treaty (NPT) are not preconditions for membership in the IAEA. The IAEA has 170 member states. Most UN members and the Holy See are Member States of the IAEA. Non-member states Cape Verde (2007), Tonga (2011), Comoros (2014), Gambia (2016) and Saint Lucia (2016) have been approved for membership