# Air Plan Approval; Connecticut; New Source Review Permit Program State Plan Revision
> **Rule** · Final rule. · Published 2026-04-02 · Effective 2026-05-04 · 91 FR 16556
## Document
- **Document number:** 2026-06384
- **Category:** air-emissions
- **Federal Register citation:** 91 FR 16556
- **CFR reference:** 40 CFR 52
- **Publication date:** 2026-04-02
- **Effective date:** 2026-05-04
- **State:** CT
- **EPA docket:** EPA-R01-OAR-2026-0653
## Abstract

The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the State of Connecticut. This revision clarifies applicability for stationary sources in nonattainment areas through Connecticut's New Source Review (NSR) permit program. This action is being taken under the Clean Air Act.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2026/04/02/2026-06384/air-plan-approval-connecticut-new-source-review-permit-program-state-plan-revision)
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