National Emission Standards for Hazardous Air Pollutants: Integrated Iron and Steel Manufacturing Facilities Technology Review

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Environmental Protection Agency 40 CFR Part 63 [EPA-HQ-OAR-2002-0083; FRL-5919.4-04-OAR] AGENCY: Environmental Protection Agency (EPA). ACTION: Final rule. SUMMARY: The U.S. Environmental Protection Agency (EPA or Agency) is taking final action to respond to comments on an interim final rule (IFR) related to the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Integrated Iron and Steel Manufacturing Facilities (“II&S NESHAP”). Specifically, the EPA is responding to comments on the IFR published in the Federal Register on July 3, 2025, that revised compliance deadlines for certain provisions related to planned bleeder valve openings, unplanned bleeder valve openings, blast furnace (BF) casthouses, basic oxygen process furnace (BOPF) shops, slag processing and handling, beaching, and fenceline monitoring. After carefully considering the comments, the EPA concludes that the amendments made in the IFR are warranted and is not making any further changes to the compliance deadlines revised in the IFR. DATES: This final rule is effective on December 3, 2025. ADDRESSES: The EPA has established a docket for this action under Docket ID No. EPA-HQ-OAR-2002-0083. All documents in the docket are available on the https://www.regulations.gov website. Although listed, some information is not publicly available, e.g., Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. The EPA does not place certain other…