# Air Plan Approval; Ohio; Carmeuse Lime, Inc. SO2
> **Rule** · Final rule. · Published 2025-12-11 · Effective 2026-01-12 · 90 FR 57374
## Document
- **Document number:** 2025-22562
- **Category:** air-emissions
- **Federal Register citation:** 90 FR 57374
- **CFR reference:** 40 CFR 52
- **Publication date:** 2025-12-11
- **Effective date:** 2026-01-12
- **State:** OH
- **EPA docket:** EPA-R05-OAR-2024-0549
## Abstract

The Environmental Protection Agency (EPA) is approving new emissions limits for the Carmeuse Lime Maple Grove, Inc. facility into the Ohio State Implementation Plan (SIP) for the National Ambient Air Quality Standard (NAAQS) for sulfur dioxide (SO<INF>2</INF>). The Ohio Environmental Protection Agency (Ohio EPA) submitted Director's Findings and Orders that establish a new emission limit for SO<INF>2</INF> emissions from two rotary lime kilns at the Carmeuse Lime Maple Grove, Inc. facility (hereafter referred to as Carmeuse Lime) in Seneca County, Ohio. EPA proposed to approve this action on August 7, 2025.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2025/12/11/2025-22562/air-plan-approval-ohio-carmeuse-lime-inc-so2)
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