### Question
How is the term extraordinary nuclear occurrence defined?


### Answer
The term **extraordinary nuclear occurrence** is defined in *42 U.S.C. § 2014* as the following:

> any event causing a discharge or dispersal of source, special nuclear, or byproduct material from its intended place of confinement in amounts offsite, or causing radiation levels offsite, which the Nuclear Regulatory Commission or the Secretary of Energy, as appropriate, determines to be substantial, and which the Nuclear Regulatory Commission or the Secretary of Energy, as appropriate, determines has resulted or will probably result in substantial damages to persons offsite or property offsite

#### Citation:
  - *42 U.S.C. § 2014*
  - Heading: **CHAPTER 23-DEVELOPMENT AND CONTROL OF ATOMIC ENERGY > Division A-Atomic Energy > SUBCHAPTER I-GENERAL PROVISIONS**

