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


### Answer
The term **controlled substance** is defined in *42 U.S.C. § 503* as the following:

> given such term in section 802 of title 21.

#### Citation:
  - *42 U.S.C. § 503*
  - Heading: **CHAPTER 7-SOCIAL SECURITY > SUBCHAPTER III-GRANTS TO STATES FOR UNEMPLOYMENT COMPENSATION ADMINISTRATION**

