### Question
What is the definition of affected source?


### Answer
The definition of **affected source** is as follows in *42 U.S.C. § 7661*:

> given such term in subchapter IV–A.

#### Citation:
  - *42 U.S.C. § 7661*
  - Heading: **CHAPTER 85-AIR POLLUTION PREVENTION AND CONTROL > SUBCHAPTER V-PERMITS**

