### Question
How does CRIMES define nuclear byproduct material?


### Answer
Under *18 U.S.C. § 831*, **nuclear byproduct material** is defined as:

> any material containing any radioactive isotope created through an irradiation process in the operation of a nuclear reactor or accelerator

#### Citation:
  - *18 U.S.C. § 831*
  - Heading: **PART I-CRIMES > CHAPTER 39-EXPLOSIVES AND OTHER DANGEROUS ARTICLES**

