2, according to the characteristics of radioactive substances and the degree of harm, can be divided into a class of radioactive substances, two, three. Class I radioactive articles refer to radioactive sources of Class I, high-level radioactive waste, spent fuel and other radioactive articles that have significant radiation impact on human health and the environment after being released into the environment.
3, Class II radioactive items, refers to Class II and Class III radioactive sources, medium-level radioactive waste, etc. released into the environment after the general radiation effects on human health and the environment of radioactive items. Class III radioactive substances, refers to Class IV and V radioactive sources, low-level radioactive waste, radiopharmaceuticals and other radioactive substances released into the environment to human health and the environment to produce a small radiation impact.
4. The specific classification and list of radioactive substances shall be formulated by the State Council's nuclear safety supervision department in conjunction with the State Council's competent authorities in charge of public security, health, customs, transportation, railroads, civil aviation and the nuclear industry.