### Question
What is the definition of national security systems?


### Answer
The definition of **national security systems** is as follows in *10 U.S.C. § 2315*:

> those telecommunications and information systems operated by the Department of Defense, the functions, operation or use of which—


(1) involves intelligence activities

#### Citation:
  - *10 U.S.C. § 2315*
  - Heading: **Subtitle A-General Military Law > PART IV-SERVICE, SUPPLY, AND PROCUREMENT > CHAPTER 137-PROCUREMENT GENERALLY**

