A nuclear power plant is a complex technological facility containing significant quantities of radioactive material. Nuclear safety is therefore a fundamental aspect of its design and operation. Its primary objective is to protect people and the environment from the harmful effects of ionising radiation by preventing accidents and mitigating their consequences. Compliance with nuclear safety requirements is overseen by national regulatory authorities. At the international level, the International Atomic Energy Agency establishes safety standards and promotes international cooperation. In the event of a nuclear accident, the relevant authorities must ensure that the public receives timely and accurate information.