### Question
Can you define what new source means?


### Answer
**New source** is defined as the following in *33 U.S.C. § 1316*:

> any source, the construction of which is commenced after the publication of proposed regulations prescribing a standard of performance under this section which will be applicable to such source, if such standard is thereafter promulgated in accordance with this section

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

