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


### Answer
**New source** is defined as the following in *42 U.S.C. § 7412*:

> a stationary source the construction or reconstruction of which is commenced after the Administrator first proposes regulations under this section establishing an emission standard applicable to such source

#### Citation:
  - *42 U.S.C. § 7412*
  - Heading: **CHAPTER 83-ENERGY EXTENSION SERVICE > SUBCHAPTER I-PROGRAMS AND ACTIVITIES > Part A-Air Quality and Emission Limitations**

