# Air Plan Approval; Ohio; Regional Haze Plan and Prong 4 (Visibility) for the 2006 and 2012 PM2.5, 2010 NO2, 2010 SO2, and 2008 Ozone NAAQS
> **Rule** · Final rule. · Published 2018-05-10 · Effective 2018-06-11 · 83 FR 21719
## Document
- **Document number:** 2018-09651
- **Category:** air-emissions
- **Federal Register citation:** 83 FR 21719
- **CFR reference:** 40 CFR 52
- **Publication date:** 2018-05-10
- **Effective date:** 2018-06-11
- **State:** OH
- **EPA docket:** EPA-R05-OAR-2016-0759
## Abstract

The Environmental Protection Agency (EPA) is taking the following five actions: Approving the portion of Ohio's November 30, 2016 State Implementation Plan (SIP) submittal seeking to change from reliance on the Clean Air Interstate Rule (CAIR) to reliance on Cross-State Air Pollution Rule (CSAPR) for certain regional haze requirements; converting EPA's limited approval/limited disapproval of Ohio's March 11, 2011 regional haze SIP to a full approval; withdrawing the Federal Implementation Plan (FIP) provisions that address the limited disapproval; approving the visibility prong of Ohio's infrastructure SIP submittals for the 2012 annual and 2006 24-hour fine particulate matter (PM<INF>2.5</INF>), 2010 nitrogen dioxide (NO<INF>2</INF>), and 2010 sulfur dioxide (SO<INF>2</INF>) National Ambient Air Quality Standards (NAAQS); and converting EPA's disapproval of the visibility portion of Ohio's infrastructure SIP submittal for the 2008 ozone NAAQS to an approval.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2018/05/10/2018-09651/air-plan-approval-ohio-regional-haze-plan-and-prong-4-visibility-for-the-2006-and-2012-pm25-2010-no2)
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