### Question
What does lead agency mean?


### Answer
**Lead agency** has the following meaning in *23 U.S.C. § 139*:

> the Department of Transportation and, if applicable, any State or local governmental entity serving as a joint lead agency pursuant to this section

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

