### Question
What is the definition of environmental assessment?


### Answer
The definition of **environmental assessment** is as follows in *23 U.S.C. § 157*:

> given the term in section 1508.1 of title 40, Code of Federal Regulations (or a successor regulation).

#### Citation:
  - *23 U.S.C. § 157*
  - Heading: **CHAPTER 1-FEDERAL-AID HIGHWAYS**

