### Question
How is the "deep injection well" defined?


### Answer
The term **deep injection well** is defined in *42 U.S.C. § 6924* as follows -

> a well used for the underground injection of hazardous waste other than a well to which section 6979a(a) [1](#6924_1_target) of this title applies

#### Citation:
  - *42 U.S.C. § 6924*
  - Heading: **CHAPTER 82-SOLID WASTE DISPOSAL > SUBCHAPTER III-HAZARDOUS WASTE MANAGEMENT**

