### Question
What is the definition of materials critical to national security?


### Answer
The definition of **materials critical to national security** is as follows in *10 U.S.C. § 187*:

> materials—


(A) upon which the production or sustainment of military equipment is dependent

#### Citation:
  - *10 U.S.C. § 187*
  - Heading: **Subtitle A-General Military Law > PART I-ORGANIZATION AND GENERAL MILITARY POWERS > CHAPTER 7-BOARDS, COUNCILS, AND COMMITTEES**

