# Approval and Promulgation of Air Quality Implementation Plan; Idaho
> **Rule** · Final rule. · Published 2006-07-13 · Effective 2006-08-14 · 71 FR 39574
## Document
- **Document number:** 06-6125
- **Category:** air-emissions
- **Federal Register citation:** 71 FR 39574
- **CFR reference:** 40 CFR 52
- **Publication date:** 2006-07-13
- **Effective date:** 2006-08-14
- **State:** ID
- **EPA docket:** Docket # R10-OAR-2005-ID-0001
## Abstract

The Environmental Protection Agency (EPA or Agency) is taking final action to approve the nonattainment and maintenance plan for particulate matter with an aerodynamic diameter less than or equal to ten micrometers (PM-10) for the Portneuf Valley, PM-10 nonattainment area in Idaho. EPA is also granting Idaho's request to redesignate the Portneuf Valley PM-10 nonattainment area to attainment for the National Ambient Air Quality Standards (NAAQS) for PM-10.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2006/07/13/06-6125/approval-and-promulgation-of-air-quality-implementation-plan-idaho)
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