### Question
How does AID HIGHWAYS define lead agency?


### Answer
Under *23 U.S.C. § 139*, **lead agency** is defined as:

> 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**

