The authorities are obliged to carry out hazard defence planning and prepare a disaster control plan for nuclear power plants and for other large-scale facilities such as chemical factories, refineries, tank farms and also for natural disasters. Depending on the local circumstances, such a plan may provide evacuation measures for the population living in the immediate vicinity. The Conference of the Minister for the Interior and the Federal state committee for nuclear energy have therefore jointly passed “General recommendations for the disaster control in the vicinity of nuclear installations” in accordance with a proposal of the Commission on Radiological Protection.