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


### Answer
The definition of **affected source** is as follows in *42 U.S.C. § 7651a*:

> a source that includes one or more affected units

#### Citation:
  - *42 U.S.C. § 7651a*
  - Heading: **CHAPTER 83-ENERGY EXTENSION SERVICE > SUBCHAPTER IV&ndash;A-ACID DEPOSITION CONTROL**

