Data / Federal rules / 2025-10546

Air Plan Approval; Delaware; Motor Vehicle Inspection and Maintenance Program Certification

The Environmental Protection Agency published this proposed rule in the Federal Register on June 11, 2025. Comments closed on July 11, 2025.

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What the agency says

The Environmental Protection Agency (EPA) is proposing to approve a state implementation plan (SIP) revision submitted by the State of Delaware. 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 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).

Key facts

Document number: 2025-10546
Type: Proposed rule
Action: Proposed rule
Agency: Environmental Protection Agency
Published: June 11, 2025
Comments due: July 11, 2025
Dates: Written comments must be received on or before July 11, 2025.
Docket: EPA-R03-OAR-2025-0133; FRL-11841-01-R3
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Carbon monoxide; Environmental protection; Incorporation by reference; Intergovernmental relations; Nitrogen dioxide; Ozone; Particulate matter; Reporting and recordkeeping requirements; Volatile organic compounds
Pages: 6

The document on federalregister.gov PDF

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Everything from the Environmental Protection Agency · Rules on air pollution control · Rules on carbon monoxide · Rules on environmental protection · Published in June 2025

Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.