### Question
How is the "Federal implementation plan" defined?


### Answer
The term **Federal implementation plan** is defined in *42 U.S.C. § 7602* as follows -

> a plan (or portion thereof) promulgated by the Administrator to fill all or a portion of a gap or otherwise correct all or a portion of an inadequacy in a State implementation plan, and which includes enforceable emission limitations or other control measures, means or techniques (including economic incentives, such as marketable permits or auctions of emissions allowances), and provides for attainment of the relevant national ambient air quality standard

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

