### Question
How is the term head of an agency defined?


### Answer
The term **head of an agency** is defined in *10 U.S.C. § 2323* as the following:

> 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**

