# Air Plan Approval; New Jersey; Redesignation of the Warren County 1971 Sulfur Dioxide Nonattainment Area to Attainment and Approval of the Area's Maintenance Plan
> **Rule** · Final rule. · Published 2023-10-02 · Effective 2023-10-02 · 88 FR 67651
## Document
- **Document number:** 2023-21700
- **Category:** air-emissions
- **Federal Register citation:** 88 FR 67651
- **CFR reference:** 40 CFR 52
- **Publication date:** 2023-10-02
- **Effective date:** 2023-10-02
- **State:** NJ
- **EPA docket:** EPA-R02-OAR-2021-0871
## Abstract

On November 15, 2021, the New Jersey Department of Environmental Protection (NJDEP) submitted a request for the Environmental Protection Agency (EPA) to approve the redesignation of the New Jersey portion of the Northeast Pennsylvania-Upper Delaware Valley Interstate Air Quality Control Region (Warren County, New Jersey) from nonattainment to attainment for the 1971 Sulfur Dioxide (SO<INF>2</INF>) National Ambient Air Quality Standards (NAAQS). In conjunction with its redesignation request, NJDEP submitted a State Implementation Plan (SIP) revision containing a limited maintenance plan and its associated contingency measures for the Warren County 1971 SO<INF>2</INF> Nonattainment Area (Warren County SO<INF>2</INF> NAA) to ensure that attainment of the SO<INF>2</INF> NAAQS will continue to be maintained. The EPA is taking final action to approve the requested SIP revision and to redesignate the Warren County SO<INF>2</INF> NAA from nonattainment to attainment for the 1971 SO<INF>2</INF> NAAQS.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/10/02/2023-21700/air-plan-approval-new-jersey-redesignation-of-the-warren-county-1971-sulfur-dioxide-nonattainment)
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