### Question
What does appliance mean?


### Answer
**Appliance** has the following meaning in *42 U.S.C. § 7671*:

> 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 83-ENERGY EXTENSION SERVICE > SUBCHAPTER VI-STRATOSPHERIC OZONE PROTECTION**

