### Question
Can you define what accidental release means?


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

> an unanticipated emission of a regulated substance or other extremely hazardous substance into the ambient air from a stationary source

#### Citation:
  - *42 U.S.C. § 7412*
  - Heading: **CHAPTER 85-AIR POLLUTION PREVENTION AND CONTROL > SUBCHAPTER I-PROGRAMS AND ACTIVITIES > Part A-Air Quality and Emission Limitations**

