# Air Plan Approval; Ohio; Revisions to NOX SIP Call Rules
> **Rule** · Final rule. · Published 2020-04-08 · Effective 2020-04-08 · 85 FR 19670
## Document
- **Document number:** 2020-06819
- **Category:** air-emissions
- **Federal Register citation:** 85 FR 19670
- **CFR reference:** 40 CFR 52
- **Publication date:** 2020-04-08
- **Effective date:** 2020-04-08
- **State:** OH
- **EPA docket:** EPA-R05-OAR-2019-0522
## Abstract

The Environmental Protection Agency (EPA) is approving under the Clean Air Act (CAA) a request from the Ohio Environmental Protection Agency (Ohio EPA) to revise the Ohio State Implementation Plan (SIP) to incorporate revisions to Ohio Administrative Code (OAC) Chapter 3745-14 regarding the Nitrogen Oxides (NO<INF>X</INF>) SIP Call. This SIP revision approves additional monitoring options for certain covered sources for NO<INF>X</INF> SIP Call purposes.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2020/04/08/2020-06819/air-plan-approval-ohio-revisions-to-nox-sip-call-rules)
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