### Question
How does STRATOSPHERIC OZONE PROTECTION define appliance?


### Answer
Under *42 U.S.C. § 7671*, **appliance** is defined as:

> any device which contains and uses a class I or class II substance as a refrigerant and which is used for household or commercial purposes, including any air conditioner, refrigerator, chiller, or freezer

#### Citation:
  - *42 U.S.C. § 7671*
  - Heading: **CHAPTER 85-AIR POLLUTION PREVENTION AND CONTROL > SUBCHAPTER VI-STRATOSPHERIC OZONE PROTECTION**

