### Question
How is the "controlled substance" defined?


### Answer
The term **controlled substance** is defined in *50 U.S.C. § 3343* as follows -

> given that term in section 802 of title 21.

#### Citation:
  - *50 U.S.C. § 3343*
  - Heading: **CHAPTER 45-MISCELLANEOUS INTELLIGENCE COMMUNITY AUTHORITIES > SUBCHAPTER III-SECURITY CLEARANCES AND CLASSIFIED INFORMATION**

