### Question
What does primary standard attainment date mean?


### Answer
**Primary standard attainment date** has the following meaning in *42 U.S.C. § 7602*:

> 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: **SUBCHAPTER I-PROGRAMS AND ACTIVITIES > Subchapter Referred to in Other Sections**

