# Air Plan Approval; Kentucky; Campbell-Clermont Area Maintenance Plan for the 2010 1-Hour SO2 NAAQS

**Action Urgency Score:** 20/100

| Field | Value |
|---|---|
| Agency | Environmental Protection Agency |
| Type | Proposed rule |
| Action | Proposed rule. |
| Published | 2026-09-25 |
| Comments close | 2026-10-26 |
| Significant | No |
| CFR parts | 40 CFR 52 |
| Summary | The U.S. Environmental Protection Agency (EPA) is proposing to approve a State Implementation Plan (SIP) revision submitted by the Commonwealth of Kentucky on February 20, 2025, for the purpose of establishing a second 10-year maintenance plan for the Kentucky portion of the Campbell-Clermont, Kentucky-Ohio maintenance area for the 2010 1-hour sulfur dioxide National Ambient Air Quality Standards. The EPA is proposing to approve this SIP revision because the Commonwealth has demonstrated that it is consistent with the Clean Air Act. |
| Document number | 2026-19667 |

## Why this score


Source: Federal Register API (Office of the Federal Register) (https://www.federalregister.gov/documents/2026/09/25/2026-19667/air-plan-approval-kentucky-campbell-clermont-area-maintenance-plan-for-the-2010-1-hour-so2-naaqs). Last refreshed: 2026-11-04T09:17:43.641Z.
Data from the Federal Register API; the published Federal Register document is authoritative. Informational only, not legal advice.