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


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

> a unit that does not serve a generator that produces electricity, a “nonutility unit” as defined in this section, or a process source as defined in section 7651i(e) [4](#7651a_4_target) of this title

#### Citation:
  - *42 U.S.C. § 7651a*
  - Heading: **SUBCHAPTER I-PROGRAMS AND ACTIVITIES > Codification**

