# Approval and Promulgation of Implementation Plans and Designations of Areas for Air Quality Planning Purposes; North Carolina: Greensboro-Winston Salem-High Point; Determination of Attaining Data for the 1997 Fine Particulate Matter Standard
> **Rule** · Final rule. · Published 2010-01-04 · Effective 2010-01-04 · 75 FR 54
## Document
- **Document number:** E9-31083
- **Category:** air-emissions
- **Federal Register citation:** 75 FR 54
- **CFR reference:** 40 CFR 52
- **Publication date:** 2010-01-04
- **Effective date:** 2010-01-04
- **State:** NC
- **EPA docket:** EPA-R04-OAR-2009-0561-200929
## Abstract

EPA is determining that the Greensboro-Winston Salem-High Point, North Carolina, (hereafter referred to as "Greensboro, North Carolina") nonattainment area for the 1997 fine particulate matter (PM<INF>2.5</INF>) National Ambient Air Quality Standard (NAAQS) has attaining data for the 1997 PM<INF>2.5</INF> NAAQS.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2010/01/04/E9-31083/approval-and-promulgation-of-implementation-plans-and-designations-of-areas-for-air-quality-planning)
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