Proposed Rule 28 Aug 2025 compliance, environmental regulation, environmental protection, pennsylvania, reporting and recordkeeping requirements, incorporation by reference, intergovernmental relations, ozone, air pollution control, volatile organic compounds, air quality, nitrogen dioxide, carbon monoxide, vehicle emissions

🚗Proposed Rule for Pennsylvania Vehicle Emission Standards

The Environmental Protection Agency (EPA) is proposing to approve a state implementation plan (SIP) revision submitted by the Commonwealth of Pennsylvania. This SIP revision addresses Clean Air Act (CAA) requirements for the enactment of a Basic vehicle emissions inspection and maintenance (I/M) program for the five counties comprising the Pennsylvania portion of the Philadelphia-Wilmington- Atlantic City, PA-NJ-MD-DE Moderate nonattainment area (Philadelphia nonattainment area) for the 2015 8-hour ozone national ambient air quality standards (NAAQS).

Learn More