Air Plan Approval; Pennsylvania; Motor Vehicle Inspection and Maintenance Program Certification for Moderate Nonattainment Under the 2015 Ozone National Ambient Air Quality Standards
air-emissions · Rule · Published 2026-01-29 · Effective 2026-03-02 · PA · 91 FR 3834
Document
Document number
2026-01762
Federal Register citation
91 FR 3834
CFR reference
40 CFR 52
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
2026-01-29
Effective date
2026-03-02
State
PA
EPA docket
EPA-R03-OAR-2025-0130
Abstract
The Environmental Protection Agency (EPA) is approving 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). The SIP revision demonstrates that Pennsylvania's existing I/M program in the Philadelphia nonattainment area meets applicable requirements for a Basic I/M program. The EPA is approving this SIP revision to the Pennsylvania SIP in accordance with the requirements of the Clean Air Act (CAA).