### Question
How does General Provisions Relating to Drugs and Devices define expiration date?


### Answer
Under *21 U.S.C. § 360bbb*, **expiration date** is defined as:

> the date established through appropriate stability testing required by the regulations issued by the Secretary to ensure that the product meets applicable standards of identity, strength, quality, and purity at the time of use

#### Citation:
  - *21 U.S.C. § 360bbb*
  - Heading: **CHAPTER 9-FEDERAL FOOD, DRUG, AND COSMETIC ACT > SUBCHAPTER V-DRUGS AND DEVICES > Part E-General Provisions Relating to Drugs and Devices**

