### Question
How is the "environmental impact statement" defined?


### Answer
The term **environmental impact statement** is defined in *23 U.S.C. § 139* as follows -

> the detailed statement of environmental impacts required to be prepared under the National Environmental Policy Act of 1969 (42 U.S.C. 4321 et seq.)

#### Citation:
  - *23 U.S.C. § 139*
  - Heading: **CHAPTER 1-FEDERAL-AID HIGHWAYS**

