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


### Answer
The term **regulated substance** is defined in *42 U.S.C. § 7412* as the following:

> a substance listed under paragraph (3)

#### Citation:
  - *42 U.S.C. § 7412*
  - Heading: **SUBCHAPTER I-PROGRAMS AND ACTIVITIES > Subchapter Referred to in Other Sections > Amendments**

