High gold content. The types of activities in the radiation safety license are divided into three categories: production, sale and use; The scope of activities refers to the categories and total activities of all radioisotopes produced, sold and used by radiation work units, as well as the categories and quantities of radiation devices.

Radiation safety license is divided into original and duplicate, and the original and duplicate have the same effect. The validity period of the radiation safety license certificate is 5 years.