# Air Plan Approval; Reconsideration and Repeal of Air Plan Partial Approval and Partial Disapproval of North Dakota's Regional Haze State Implementation Plan for the Second Implementation Period

**Action Urgency Score:** 20/100

| Field | Value |
|---|---|
| Agency | Environmental Protection Agency |
| Type | Proposed rule |
| Action | Proposed rule; reconsideration of final rule. |
| Published | 2026-09-09 |
| Comments close | 2026-10-09 |
| Significant | No |
| CFR parts | 40 CFR 52 |
| Summary | The U.S. Environmental Protection Agency (EPA or Agency) is proposing to repeal a final rule published in the Federal Register on December 2, 2024, partially approving and partially disapproving North Dakota's 2022 regional haze State Implementation Plan (SIP) submission for the second implementation period. As a result, the EPA is proposing to approve the portions of North Dakota's 2022 SIP submission for the second implementation period that were disapproved in the EPA's 2024 partial approval/partial disapproval. In the December 2024 final rule, the EPA determined that North Dakota submitted |
| Document number | 2026-18290 |

## Why this score


Source: Federal Register API (Office of the Federal Register) (https://www.federalregister.gov/documents/2026/09/09/2026-18290/air-plan-approval-reconsideration-and-repeal-of-air-plan-partial-approval-and-partial-disapproval-of). 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.