### Question
How is the "primary standard attainment date" defined?


### Answer
The term **primary standard attainment date** is defined in *42 U.S.C. § 7602* as follows -

> the date specified in the applicable implementation plan for the attainment of a national primary ambient air quality standard for any air pollutant

#### Citation:
  - *42 U.S.C. § 7602*
  - Heading: **CHAPTER 83-ENERGY EXTENSION SERVICE > SUBCHAPTER III-GENERAL PROVISIONS**

