IAEA stands for the International Atomic Energy Agency. When a country signs the Non-Proliferation Treaty (NPT), they are agreeing to abide by the International Atomic Energy Agency’s rules and regulations about using nuclear energy. The IAEA has the authority to inspect, verify, and monitor a country’s nuclear energy programs. Reports are then compiled, which are then used by the United Nations Security Council to inform their decisions about what course of action to take. The IAEA headquarters are in Vienna, the capital of the European country of Austria.