### Question
How is the "owner or operator" defined?


### Answer
The term **owner or operator** is defined in *42 U.S.C. § 7411* as follows -

> any person who owns, leases, operates, controls, or supervises a stationary source

#### Citation:
  - *42 U.S.C. § 7411*
  - Heading: **SUBCHAPTER I-PROGRAMS AND ACTIVITIES > Subchapter Referred to in Other Sections > Amendments**

