### Question
How does the law define retail facility?


### Answer
Under *42 U.S.C. § 7412*, **retail facility** is defined as:

> a stationary source at which more than one-half of the income is obtained from direct sales to end users or at which more than one-half of the fuel sold, by volume, is sold through a cylinder exchange program

#### Citation:
  - *42 U.S.C. § 7412*
  - Heading: **SUBCHAPTER I-PROGRAMS AND ACTIVITIES > Subchapter Referred to in Other Sections > Amendments**

