# Designation of Areas for Air Quality Planning Purposes; Ohio; Redesignation of the Ohio Portion of the Steubenville Sulfur Dioxide Nonattainment Area
> **Rule** · Final rule. · Published 2019-11-29 · Effective 2019-11-29 · 84 FR 65683
## Document
- **Document number:** 2019-25818
- **Category:** air-emissions
- **Federal Register citation:** 84 FR 65683
- **CFR reference:** 40 CFR 52
- **Publication date:** 2019-11-29
- **Effective date:** 2019-11-29
- **State:** OH
- **EPA docket:** EPA-R05-OAR-2019-0394
## Abstract

In accordance with the Clean Air Act (CAA), the Environmental Protection Agency (EPA) is redesignating the Ohio portion of the Steubenville Ohio-West Virginia interstate sulfur dioxide (SO<INF>2</INF>) nonattainment area (Steubenville nonattainment area) from nonattainment to attainment. EPA is also approving Ohio's maintenance plan. Emissions of SO<INF>2</INF> in the area have been reduced and the air quality in the nonattainment area is currently well below the 2010 SO<INF>2</INF> national ambient air quality standard (NAAQS).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2019/11/29/2019-25818/designation-of-areas-for-air-quality-planning-purposes-ohio-redesignation-of-the-ohio-portion-of-the)
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