Air Plan Approval; Delaware; Excess Emissions Provisions Pertaining to Periods of Startup, Shutdown and Malfunction Events

What it does

The Environmental Protection Agency (EPA) is proposing to approve revisions to the state implementation plan (SIP) for three state regulations submitted by the State of Delaware through the Delaware Department of Natural Resources and Environmental Control (DNREC) on February 3, 2025. The proposed 2025 revisions to the SIP amend certain startup and shutdown provisions in a manner that avoids the deficiencies that the EPA identified in a disapproval action dated October 23, 2023, in which the Agency disapproved portions of a prior SIP revision dated November 22, 2016. This action is being taken under section 110 of the Clean Air Act (CAA).

The Environmental Protection Agency's summary, as published in the Federal Register.

What it would change

1 part of Title 40 of the Code of Federal Regulations:

40 CFR 52

What happens next and when

Written comments must be received on or before June 1, 2026.

The agency's dates, word for word.

Check it yourself

• The document in the Federal Register
• Docket EPA-R03-OAR-2025-0215 on Regulations.gov
• Title 40 on eCFR

The record as published

Source: the Federal Register (public domain). The document in the Federal Register