### Question
How does the law define official device?


### Answer
Under *21 U.S.C. § 453*, **official device** is defined as:

> any device prescribed or authorized by the Secretary for use in applying any official mark

#### Citation:
  - *21 U.S.C. § 453*
  - Heading: **CHAPTER 9-FEDERAL FOOD, DRUG, AND COSMETIC ACT > SUBCHAPTER X-MISCELLANEOUS**

