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

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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 2 ) 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 2 Nonattainment Area (Warren County SO 2 NAA) to ensure that attainment of the SO 2 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 2 NAA from nonattainment to attainment for the 1971 SO 2 NAAQS.