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


### Answer
The term **chemical substance** is defined in *15 U.S.C. § 2602* as the following:

> any organic or inorganic substance of a particular molecular identity, including—


(i) any combination of such substances occurring in whole or in part as a result of a chemical reaction or occurring in nature and


(ii) any element or uncombined radical

#### Citation:
  - *15 U.S.C. § 2602*
  - Heading: **CHAPTER 53-TOXIC SUBSTANCES CONTROL > SUBCHAPTER I-CONTROL OF TOXIC SUBSTANCES**

