ENVIRONMENTAL PROTECTION AGENCY ISSUES PROPOSED RULE: AIR PLAN APPROVAL; PENNSYLVANIA; REDESIGNATION OF THE WARREN COUNTY NONATTAINMENT AREA TO ATTAINMENT AND APPROVAL OF THE AREA'S MAINTENANCE PLAN FOR THE 2010 1-HOUR PRIMARY SULFUR DIOXIDE NATIONAL AMBIENT AIR QUALITY STANDARD

WASHINGTON, July 30 -- Environmental Protection Agency has issued a proposed rule called: Air Plan Approval; Pennsylvania; Redesignation of the Warren County Nonattainment Area to Attainment and Approval of the Area's Maintenance Plan for the 2010 1-Hour Primary Sulfur Dioxide National Ambient Air Quality Standard.

The proposed rule was published in the Federal Register on July 30 by Amy Van Blarcom-Lackey, Regional Administrator, Region III.

Summary: The Environmental Protection Agency (EPA) is proposing to approve a state implementation plan (SIP) revision and redesignation request submitted on September 19, 2025 by the Pennsylvania Department of Environmental Protection (PADEP). The SIP revision asks the EPA to redesignate the Warren C...