# Air Plan Approval; North Carolina; Charlotte-Rock Hill Area Maintenance Plan for the 2008 8-Hour Ozone NAAQS

**Action Urgency Score:** 20/100

| Field | Value |
|---|---|
| Agency | Environmental Protection Agency |
| Type | Proposed rule |
| Action | Proposed rule. |
| Published | 2026-09-23 |
| Comments close | 2026-10-23 |
| Significant | No |
| CFR parts | 40 CFR 52 |
| Summary | On February 28, 2025, the State of North Carolina, through the North Carolina Department of Environmental Quality, Division of Air Quality (NCDAQ), submitted a request for the U.S. Environmental Protection Agency (EPA) to approve a State Implementation Plan (SIP) revision containing the State's plan for maintaining the 2008 ozone National Ambient Air Quality Standard (NAAQS) through 2035 for the North Carolina portion of the bi-state Charlotte-Rock Hill, North Carolina-South Carolina 2008 8-hour ozone nonattainment area (the entire area is hereinafter referred to as the "bi-state Charlotte Are |
| Document number | 2026-19495 |

## Why this score


Source: Federal Register API (Office of the Federal Register) (https://www.federalregister.gov/documents/2026/09/23/2026-19495/air-plan-approval-north-carolina-charlotte-rock-hill-area-maintenance-plan-for-the-2008-8-hour-ozone). Last refreshed: 2026-11-03T19:10:06.902Z.
Data from the Federal Register API; the published Federal Register document is authoritative. Informational only, not legal advice.