### Question
What does substantial evidence mean?


### Answer
**Substantial evidence** has the following meaning in *21 U.S.C. § 360b*:

> evidence consisting of one or more adequate and well controlled investigations, such as—


(A) a study in a target species

#### Citation:
  - *21 U.S.C. § 360b*
  - Heading: **CHAPTER 9-FEDERAL FOOD, DRUG, AND COSMETIC ACT > SUBCHAPTER V-DRUGS AND DEVICES > Part A-Drugs and Devices**

