Supporting System in Emergency Response Plan for Nuclear Material Transport Accidents+

The development and use of nuclear energy have progressed steadily in Japan, and especially the nuclear power generation has taken an important part of electric power supply. As the nuclear power generation capacity increases, the amount of transportation of nuclear materials such as uranium hexafluoride, uranium oxide, fabricated nuclear fuel and spent fuel increases more and more. In Japan, all such transportations are controlled by domestic regula- tions which have completely adopted the IAEA regulations (1985 Edition). In particular, type B and/ or fissile nuclear packages should be certified by the Competent Authority (Science and Technology Agency (STA) or Ministry of Transport (MOT)) to be satisfied the safety requirements of the IAEA Regulations. Although there has never been a serious accident nor incident which has led to radiological impact to the public until now, an emergency response planning is needed to secure safe transportation.