Abstract: This article introduces the overall requirements for emergency exposure, emergency management system, public exposure, emergency worker exposure, and the transition from emergency exposure to existing exposure in Radiation Protection and Safety of Radiation Sources—International Basic Safety Standards. This article also introduces the changes in the standard of Preparedness and Response for a Nuclear or Radiological Emergency published by the IAEA in November 2015, and puts forward suggestions for revising China's national standard of Basic Standards for Protection against ionizing radiation and for the Safety of Radiation Sources.

Key words: radiation protection, basic standard, emergency exposure situation, nuclear or radiological emergency, reference level, hazard assessment, protection strategy, generic criteria