Data / Federal rules / 2026-19495
Air Plan Approval; North Carolina; Charlotte-Rock Hill Area Maintenance Plan for the 2008 8-Hour Ozone NAAQS
The Environmental Protection Agency published this proposed rule in the Federal Register on September 23, 2026. Comments closed on October 23, 2026.
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What the agency says
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 Area" and the North Carolina portion is hereinafter referred to as the "Charlotte Area"). The EPA is proposing to approve and incorporate North Carolina's second 10-year maintenance plan to maintain attainment of the 2008 8-hour ozone NAAQS in the bi-state Charlotte Area, including the 2018 and 2035 motor vehicle emission budgets (budgets) for nitrogen oxides (NO<INF>X</INF>) and volatile organic compounds (VOC) for the Charlotte Area, into the SIP. The EPA is also notifying the public of the status of the EPA's adequacy determination for the sub-area budgets for the Charlotte Area.
Key facts
- Document number
- 2026-19495
- Type
- Proposed rule
- Action
- Proposed rule
- Agency
- Environmental Protection Agency
- Published
- September 23, 2026
- Comments due
- October 23, 2026
- Dates
- Comments must be received on or before October 23, 2026.
- Docket
- EPA-R04-OAR-2025-0223; FRL-13259-01-R4
- Code of Federal Regulations
- 40 CFR 52
- Topics
- Air pollution control; Carbon monoxide; Environmental protection; Incorporation by reference; Intergovernmental relations; Lead; Nitrogen dioxide; Ozone; Particulate matter; Reporting and recordkeeping requirements; Sulfur oxides; Volatile organic compounds
- Pages
- 10
Other documents from the Environmental Protection Agency
Everything from the Environmental Protection Agency · Rules on air pollution control · Rules on carbon monoxide · Rules on environmental protection · Published in September 2026
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