### Question
How is the term materials defined?


### Answer
The term **materials** is defined in *30 U.S.C. § 1811* as the following:

> given it by section 1601(b) of this title.

#### Citation:
  - *30 U.S.C. § 1811*
  - Heading: **CHAPTER 30-NATIONAL CRITICAL MATERIALS COUNCIL**

