# Prevention of Significant Deterioration (PSD): Paragraph Designation Corrections
> **Rule** · Final rule. · Published 2024-10-22 · Effective 2024-10-22 · 89 FR 84286
## Document
- **Document number:** 2024-24281
- **Category:** other
- **Federal Register citation:** 89 FR 84286
- **CFR reference:** 40 CFR 51
- **Publication date:** 2024-10-22
- **Effective date:** 2024-10-22
- **EPA docket:** EPA-HQ-OAR-2024-0234
## Abstract

The Environmental Protection Agency (EPA) is amending its Prevention of Significant Deterioration (PSD) regulations to correct the fourth-level paragraph designations to conform with the Office of the Federal Register (OFR) requirements. This is a ministerial final rule action that involves minor technical corrections.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2024/10/22/2024-24281/prevention-of-significant-deterioration-psd-paragraph-designation-corrections)
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