# Air Plan Approval; Indiana; Revisions to NOX SIP Call and CAIR Rules
> **Rule** · Final rule. · Published 2020-07-24 · Effective 2020-08-24 · 85 FR 44738
## Document
- **Document number:** 2020-15220
- **Category:** air-emissions
- **Federal Register citation:** 85 FR 44738
- **CFR reference:** 40 CFR 52
- **Publication date:** 2020-07-24
- **Effective date:** 2020-08-24
- **State:** IN
- **EPA docket:** EPA-R05-OAR-2018-0634
## Abstract

The Environmental Protection Agency (EPA) is approving under the Clean Air Act (CAA) a request from the Indiana Department of Environmental Management (IDEM) to revise the Indiana State Implementation Plan (SIP) to incorporate the following: A new rule concerning nitrogen oxide (NO<INF>X</INF>) emissions for the ozone season from Electric Generating Units (EGUs) and large non-EGUs; revisions concerning NO<INF>X</INF> emission rate limits for specific source categories; the repeal of the NO<INF>X</INF> Budget Trading Program; and the repeal of the Clean Air Interstate Rule (CAIR) NO<INF>X</INF> ozone season trading program. This SIP revision will ensure continued compliance by EGUs and large non-EGUs with the requirements of the NO<INF>X</INF> SIP Call.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2020/07/24/2020-15220/air-plan-approval-indiana-revisions-to-nox-sip-call-and-cair-rules)
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