WTO notification · TBT
United StatesAdopted, according to its latest notice
Official title
National Emission Standards for Hazardous Air Pollutants From Secondary Lead Smelting Technology Review
The United States issued an addendum on 26 November 2025 to the earlier TBT notification G/TBT/N/USA/1947. Addenda often report that a measure was adopted, changed, postponed or withdrawn. The measure was first notified on 2 December 2022. The comment period closed on 8 December 2025.
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Secondary lead smelters; Quality; Air quality; Lead, zinc, tin and their alloys; Equipment for the metallurgical industry
Latest notice (G/TBT/N/USA/1947/Rev.1/Add.1, 26 November 2025)
The latest notice says the measure was adopted or published.
Review of National Emission Standards for Hazardous Air Pollutants From Secondary Lead Smelting Technology Review; Reopening of Comment Period
On 1 October 2025, the U.S. Environmental Protection Agency (EPA) proposed a rule titled ''National Emission Standards for Hazardous Air Pollutants from Secondary Lead Smelting Technology Review.'' (notified as G/TBT/N/USA/1947/Rev.1) The EPA is reopening the comment period on this proposed rule, which closed on 17 November 2025. The comment period will now end on 8 December 2025, to allow additional time for stakeholders to review and comment on the proposal. The EPA is reopening the comment period for the proposed rule that published in the Federal Register (FR) on 1 October 2025, at 90 FR 47268. The EPA must receive written comments on or before 8 December 2025. 90 Federal Register (FR) 52908, 24 November 2025; Title 40 Code of Federal Regulations (CFR) Part 63: This reopening of public comment period and the proposed rule notified as G/TBT/N/USA/1947/Rev.1 are identified by Docket Number EPA-HQ-OAR-2025-0078. The Docket Folder is available on Regulations.gov at and provides access to primary and supporting documents as well as comments received. Documents are also accessible from Regulations.gov by searching the Docket Number. WTO Members and their stakeholders are asked to submit comments to the USA TBT Enquiry Point by or before 4pm Eastern Time on 8 December 2025. Comments received by the USA TBT Enquiry Point from WTO Members and their stakeholders will be shared with EPA and will also be submitted to the Docket on Regulations.gov if received within the comment…
Proposed rule - 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.
Every notice about this measure published here, newest first. Each one is the notifying member's own text.
AddendumG/TBT/N/USA/1947/Rev.1/Add.1
Comment deadline: Closed on 8 December 2025
Review of National Emission Standards for Hazardous Air Pollutants From Secondary Lead Smelting Technology Review; Reopening of Comment Period
On 1 October 2025, the U.S. Environmental Protection Agency (EPA) proposed a rule titled ''National Emission Standards for Hazardous Air Pollutants from Secondary Lead Smelting Technology Review.'' (notified as G/TBT/N/USA/1947/Rev.1) The EPA is reopening the comment period on this proposed rule, which closed on 17 November 2025. The comment period will now end on 8 December 2025, to allow additional time for stakeholders to review and comment on the proposal. The EPA is reopening the comment period for the proposed rule that published in the Federal Register (FR) on 1 October 2025, at 90 FR 47268. The EPA must receive written comments on or before 8 December 2025. 90 Federal Register (FR) 52908, 24 November 2025; Title 40 Code of Federal Regulations (CFR) Part 63: This reopening of public comment period and the proposed rule notified as G/TBT/N/USA/1947/Rev.1 are identified by Docket Number EPA-HQ-OAR-2025-0078. The Docket Folder is available on Regulations.gov at and provides access to primary and supporting documents as well as comments received. Documents are also accessible from Regulations.gov by searching the Docket Number. WTO Members and their stakeholders are asked to submit comments to the USA TBT Enquiry Point by or before 4pm Eastern Time on 8 December 2025. Comments received by the USA TBT Enquiry Point from WTO Members and their stakeholders will be shared with EPA and will also be submitted to the Docket on Regulations.gov if received within the comment…
RevisionG/TBT/N/USA/1947/Rev.1
Comment deadline: Closed on 17 November 2025
National Emission Standards for Hazardous Air Pollutants From Secondary Lead Smelting Technology Review
Proposed rule - 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.
AddendumG/TBT/N/USA/1947/Add.2
New Source Performance Standards Review for Secondary Lead Smelters
The Environmental Protection Agency (EPA) is finalizing amendments to the new source performance standards (NSPS) for secondary lead smelters pursuant to the periodic review required by the Clean Air Act (CAA). Specifically, the EPA is finalizing revisions to the NSPS that applies to affected secondary lead smelters constructed, reconstructed, or modified after 1 December 2022 (NSPS subpart La). The EPA is also finalizing amendments to the NSPS for secondary lead smelters constructed, reconstructed, or modified after 11 June 1973, and on or before 1 December 2022, (NSPS subpart L). In addition, we are finalizing the use of EPA Method 22 (Visual Determination of Fugitive Emissions from Material Sources and Smoke Emissions from Flares) as an alternative for demonstrating compliance with the opacity limit. This final rule is effective on 20 November 2023. The incorporation by reference (IBR) of certain publications listed in the rule is approved by the Director of the Federal Register as of 20 November 2023. Title 40 Code of Federal Regulations (CFR) Part 60 This final rule and previous actions notified under the symbol G/TBT/N/USA/1947 are identified by Docket Number EPA-HQ-OAR-2022-0481. The Docket Folder is available on Regulations.gov at and provides access to primary and supporting documents as well as comments received. Documents are also accessible from Regulations.gov by searching the Docket Number.
AddendumG/TBT/N/USA/1947/Add.1
Comment deadline: Closed on 1 February 2023
New Source Performance Standards Review for Secondary Lead Smelters
TITLE: New Source Performance Standards Review for Secondary Lead Smelters; Extension of Comment Period AGENCY: Environmental Protection Agency (EPA) ACTION: Proposed rule; extension of public comment period SUMMARY: On 1 December 2022, the U.S. Environmental Protection Agency (EPA) proposed a rule titled 'New Source Performance Standards Review for Secondary Lead Smelters.' The EPA is extending the comment period on this proposed rule that currently closes on 17 January 2023, by 15 days. The comment period will now remain open until 1 February 2023, to allow additional time for stakeholders and Tribal Nations to review and comment on the proposal. DATES: The public comment period for the proposed rule published in the Federal Register (FR) on 1 December 2022 (87 FR 73708), originally ending 17 January 2023, is being extended by 15 days. Written comments must be received on or before 1 February 2023. This proposed rule; extension of public comment period and the proposed rule notified as G/TBT/N/USA/1947 are identified by Docket Number EPA-HQ-OAR-2022-0481. The Docket Folder is available on Regulations.gov at and provides access to primary and supporting documents as well as comments received. Documents are also accessible from Regulations.gov by searching the Docket Number. WTO Members and their stakeholders are asked to submit comments to the USA TBT Enquiry Point. Comments received by the USA TBT Enquiry Point from WTO Members and their stakeholders by 4pm Eastern Time…
Regular notificationG/TBT/N/USA/1947
Comment deadline: Closed on 17 January 2023
New Source Performance Standards Review for Secondary Lead Smelters
Proposed rule - The Environmental Protection Agency (EPA) is proposing amendments to the Standards of Performance for secondary lead smelters per the Agency's periodic review of the new source performance standards required by the Clean Air Act (CAA). In this action, we are proposing updates to the current New Source Performance Standards (NSPS) for secondary lead smelters and proposing a new NSPS subpart that applies to affected sources constructed, reconstructed, or modified after the date of this proposed rule. For the current NSPS subpart, we are proposing to revise the definitions of blast furnace, reverberatory furnace, and pot furnace to more closely align with the equipment definitions used in the National Emissions Standards for Hazardous Air Pollutants (NESHAP) for secondary lead smelting. We are also proposing requirements for periodic performance tests for particulate matter (PM) and incorporating revised monitoring, recordkeeping, and reporting requirements, including electronic reporting of performance tests, to be more consistent with the NESHAP. For the new subpart, we are proposing updated PM and opacity emissions limits for blast, reverberatory, and pot furnaces that reflect the performance achieved by the best system for emissions reductions (BSER). In the new subpart, we are proposing PM and opacity emissions limits that apply at all times, including during periods of startup, shutdown, and malfunction (SSM), and proposing initial and periodic PM and…
Expodite writes its summary from the official record. The notification and the documents it notifies are on the WTO's own websites.
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