### Question
How does the law define owner or operator?


### Answer
Under *33 U.S.C. § 1316*, **owner or operator** is defined as:

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

#### Citation:
  - *33 U.S.C. § 1316*
  - Heading: **CHAPTER 26-WATER POLLUTION PREVENTION AND CONTROL > SUBCHAPTER III-STANDARDS AND ENFORCEMENT**

