### Question
How does DRUG ABUSE PREVENTION AND CONTROL define controlled substance?


### Answer
Under *21 U.S.C. § 802*, **controlled substance** is defined as:

> a drug or other substance, or immediate precursor, included in schedule I, II, III, IV, or V of part B of this subchapter

#### Citation:
  - *21 U.S.C. § 802*
  - Heading: **CHAPTER 13-DRUG ABUSE PREVENTION AND CONTROL > SUBCHAPTER I-CONTROL AND ENFORCEMENT > Part A-Introductory Provisions**

