### Question
How does NUCLEAR PROLIFERATION PREVENTION define highly enriched uranium?


### Answer
Under *22 U.S.C. § 6324*, **highly enriched uranium** is defined as:

> uranium enriched to 20 percent or more in the isotope U–235

#### Citation:
  - *22 U.S.C. § 6324*
  - Heading: **CHAPTER 72-NUCLEAR PROLIFERATION PREVENTION > SUBCHAPTER II-INTERNATIONAL ATOMIC ENERGY AGENCY**

