Data / Federal rules / 2025-19155

National Emission Standards for Hazardous Air Pollutants From Secondary Lead Smelting Technology Review

The Environmental Protection Agency published this proposed rule in the Federal Register on October 1, 2025. Comments closed on November 17, 2025.

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What the agency says

The U.S. Environmental Protection Agency (EPA) is proposing amendments to the National Emission Standards for Hazardous Air Pollutants (NESHAP) for the Secondary Lead Smelting source category ("Secondary Lead Smelting NESHAP") under Clean Air Act (CAA) section 112. The EPA did not identify any cost-effective developments in practices, processes, and/or control technologies and is not proposing changes to the Secondary Lead Smelting NESHAP as a result of the technology review. The EPA is proposing to address previously unregulated hazardous air pollutants (HAP) from this source category. We are also addressing outstanding petition issues from the 2012 Secondary Lead Smelting (RTR), hereafter referred to as the 2012 RTR. In response to the petitions, we are taking comment on our conclusion in the 2012 RTR that the Secondary Lead Smelting NESHAP provides an ample margin of safety to protect public health and on two additional provisions. In addition, the EPA is proposing revisions related to emissions during periods of startup, shutdown, and malfunction; to add requirements for electronic reporting; to revise monitoring requirements; and to make other minor technical revisions.

Key facts

Document number: 2025-19155
Type: Proposed rule
Action: Proposed rule
Agency: Environmental Protection Agency
Published: October 1, 2025
Comments due: November 17, 2025
Dates: Comments must be received on or before November 17, 2025. Under the Paperwork Reduction Act (PRA), comments on the information collection provisions are best assured of consideration if the Office of Management and Budget (OMB) receives a copy of your comments on or before October 31, 2025.
Docket: EPA-HQ-OAR-2025-0078; FRL-5774-01-OAR
Regulation ID (RIN): 2060-AS32
Code of Federal Regulations: 40 CFR 63
Topics: Air pollution control; Environmental protection; Hazardous substances; Incorporation by reference; Reporting and recordkeeping requirements
Pages: 19

The document on federalregister.gov PDF

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Everything from the Environmental Protection Agency · Rules on air pollution control · Rules on environmental protection · Rules on hazardous substances · Published in October 2025

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