### Question
What is the definition of head of an agency?


### Answer
The definition of **head of an agency** is as follows in *10 U.S.C. § 2323*:

> the Secretary of Defense, the Secretary of Homeland Security, and the Administrator of the National Aeronautics and Space Administration

#### Citation:
  - *10 U.S.C. § 2323*
  - Heading: **Subtitle A-General Military Law > PART IV-SERVICE, SUPPLY, AND PROCUREMENT > CHAPTER 137-PROCUREMENT GENERALLY**

