What is the IAEA?
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 organization on 29 July 1957. Though established independently of the United Nations through its own international treaty, the IAEA Statute,[1] the IAEA reports to both the UN General Assembly and Security Council. The IAEA serves as an intergovernmental forum for scientific and technical cooperation in the peaceful use of nuclear technology and nuclear power worldwide. The programs of the IAEA encourage the development of the peaceful applications of nuclear technology, provide international safeguards against misuse of nuclear technology and nuclear materials, and promote nuclear safety (including radiation protection) and nuclear security standards and their implementation.
The IAEA's mission is guided by the interests and needs of Member States, strategic plans and the vision embodied in the IAEA Statute (see below). Three main pillars – or areas of work – underpin the IAEA's mission: Safety and Security; Science and Technology; and Safeguards and Verification

The IAEA as an autonomous organization is not under direct control of the UN, but the IAEA does report to both the UN General Assembly and Security Council. Unlike most other specialized international agencies, the IAEA does much of its work with the Security Council, and not with the United Nations Economic and Social Council. The structure and functions of the IAEA are defined by its founding document, the IAEA Statute (see below). The IAEA has three main bodies: the Board of Governors, the General Conference, and the Secretariat.
The IAEA exists to pursue the "safe, secure and peaceful uses of nuclear sciences and technology" (Pillars 2005). The IAEA executes this mission with three main functions: the inspection of existing nuclear facilities to ensure their peaceful use, providing information and developing standards to ensure the safety and security of nuclear facilities, and as a hub for the various fields of science involved in the peaceful applications of nuclear technology.
Missions:
1.Peaceful uses: Promoting the peaceful uses of nuclear energy by its member states,
"to accelerate and enlarge the contribution of atomic energy to peace, health and prosperity throughout the world." Its primary functions in this area, according to Article III, are to encourage research and development, to secure or provide materials, services, equipment and facilities for Member States, to foster exchange of scientific and technical information and training.
2.Safeguards: Implementing safeguards to verify that nuclear energy is not used for military purposes, and
Article II of the IAEA Statute defines the Agency's twin objectives as promoting peaceful uses of atomic energy and "ensur[ing], so far as it is able, that assistance provided by it or at its request or under its supervision or control is not used in such a way as to further any military purpose." To do this, the IAEA is authorized in Article III.A.5 of the Statute "to establish and administer safeguards designed to ensure that special fissionable and other materials, services, equipment, facilities, and information made available by the Agency or at its request or under its supervision or control are not used in such a way as to further any military purpose; and to apply safeguards, at the request of the parties, to any bilateral or multilateral arrangement, or at the request of a State, to any of that State's activities in the field of atomic energy."[1]

The Department of Safeguards is responsible for carrying out this mission, through technical measures designed to verify the correctness and completeness of states' nuclear declarations.
3.Nuclear safety: Promoting high standards for nuclear safety

What is the NPT? landmark international treaty whose objective is to prevent the spread of nuclear weapons and weapons technology, to promote cooperation in the peaceful uses of nuclear energy and to further the goal of achieviThe impetus behind the NPT was concern for the safety of a world with many nuclear weapon states. It was recognized that the cold war deterrent relationship between just the United States and Soviet Union was fragile. Having more nuclear nuclear-weapon states would reduce security for all, multiplying the risks of miscalculation, accidents, unauthorized use of weapons, or from escalation in tensions, nuclear conflict.The NPT process was launched by Frank Aiken, Irish Minister for External Affairs, in 1958. It was opened for signature in 1968, with Finland the first State to sign. Accession became nearly universal after the end of the Cold War and of South African apartheid. In 1992 China and France acceded to the NPT, the last of the five nuclear powers recognized by the treaty to do so. In 1995 the treaty was extended indefinitely. After Brazil acceded to the NPT in 1998 the only remaining non-nuclear-weapons state which had not signed was Cuba, which joined NPT (and the Treaty of Tlatelolco NWFZ) in 2002.ng nuclear disarmament and general and complete disarmament.