Air Plan Approval; Delaware; Motor Vehicle Inspection and Maintenance Program Certification
air-emissions · Rule · Published 2025-09-25 · Effective 2025-10-27 · DE · 90 FR 46067
Document
Document number
2025-18626
Federal Register citation
90 FR 46067
CFR reference
40 CFR 52
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
2025-09-25
Effective date
2025-10-27
State
DE
EPA docket
EPA-R03-OAR-2025-0133
Abstract
The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision submitted by the State of Delaware. The SIP revision addresses Clean Air Act (CAA) requirements for the enactment of a Basic vehicle emissions inspection and maintenance (I/M) program for the Delaware portion (i.e., New Castle County) of the Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE Nonattainment Area (Philadelphia NAA) for the 2015 8-hour ozone national ambient air quality standards (NAAQS).