Abstract: The main content of the newly released U.S. Federal Regulations 10 CFR 50.160 was introduced, which was amended by Nuclear Regulatory Commission to create an alternative, performance-based emergency preparedness framework for small modular reactors, non-light-water reactors, and non-power production or utilization facilities. A detailed analysis was conducted on the differences of emergency supervision between small and large reactors in the U.S.. Based on the current practice of emergency regulations for small reactors in China, regulatory reflection was provided in terms of emergency feasibility analysis, emergency protection actions, and the determination of emergency planning zone. Relevant suggestions were put forward. A performance-based approach should be adopted for small reactor emergency management.

Key words: small modular reactors, emergency preparedness, performance-based approach, regulation