Hazardous substances

National Emission Standards for Hazardous Air Pollutants: Mercury Cell Chlor-Alkali Plants Residual Risk and Technology Review

This action finalizes the residual risk and technology review (RTR) conducted for the Mercury Cell Chlor-Alkali Plants source category regulated under national emission standards for hazardous air pollutants (NESHAP). In addition, this action finalizes the beyond-the- floor determination that EPA performed in response to a petition for reconsideration of the 2003 NESHAP.

Publication Date: 
Friday, May 6, 2022 - 4:00am

Asbestos Part 1: Chrysotile Asbestos; Regulation of Certain Conditions of Use Under Section 6(a) of the Toxic Substances Control Act (TSCA)

The Environmental Protection Agency (EPA) is proposing a rule under the Toxic Substances Control Act (TSCA) to address the unreasonable risk of injury to health it has identified for conditions of use of chrysotile asbestos following completion of the TSCA Risk Evaluation for Asbestos, Part 1: Chrysotile Asbestos. TSCA requires that EPA address the unreasonable risks of injury to health and environment by rule and to apply requirements to the extent necessary so that chrysotile asbestos no longer presents such risks.

Publication Date: 
Tuesday, April 12, 2022 - 4:00am

Air Plan Approval; Indiana, Ohio; Definition of Chemical Process Plants Under State Prevention of Significant Deterioration Regulations and Operating Permit Programs

The Environmental Protection Agency (EPA) is approving revisions to the State Implementation Plan (SIP) for Indiana and revisions to the operating permit program for Ohio. The revisions incorporate changes to the definition of ``chemical process plants'' under Indiana's Prevention of Significant Deterioration (PSD) regulations and under Ohio's operating permit program. EPA also provided an opportunity for public comment on similar changes to the definition of ``major stationary source'' in Ohio's PSD regulations that were approved into the SIP on October 28, 2014.

Publication Date: 
Thursday, April 7, 2022 - 4:00am

Delegation of New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants for the States of Arizona and California

The EPA is taking direct final action to update the Code of Federal Regulations delegation tables to reflect the current delegation status of New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants in Arizona and California.

Publication Date: 
Thursday, March 31, 2022 - 4:00am

National Emission Standards for Hazardous Air Pollutants: Municipal Solid Waste Landfills Residual Risk and Technology Review; Correction

In this action, the U.S. Environmental Protection Agency (EPA) is finalizing technical revisions and clarifications for the national emission standards for hazardous air pollutants (NESHAP) for MSW Landfills established in the March 26, 2020, final rule. This final rule also amends the MSW Landfills NSPS at 40 CFR part 60, subpart XXX, to clarify and align the timing of compliance for certain requirements involving installation of a gas collection and control system (GCCS) under related MSW landfill rules.

Publication Date: 
Monday, February 14, 2022 - 4:00am

National Emission Standards for Hazardous Air Pollutants: Primary Copper Smelting Residual Risk and Technology Review and Primary Copper Smelting Area Source Technology Review

This proposal presents the results of the U.S. Environmental Protection Agency's (EPA's) residual risk and technology review (RTR) for the National Emission Standards for Hazardous Air Pollutants (NESHAP) for major source Primary Copper Smelters as required under the Clean Air Act (CAA). Pursuant to the CAA, this action also presents the results of the technology review for the Primary Copper Smelting area source NESHAP. The EPA is proposing new emissions standards in the major source NESHAP.

Publication Date: 
Tuesday, January 11, 2022 - 4:00am

National Perchloroethylene Air Emission Standards for Dry Cleaning Facilities Technology Review; Correction

On December 27, 2021, the U.S. Environmental Protection Agency (EPA) proposed amendments to the National Emission Standards for Hazardous Air Pollutants (NESHAP) for dry cleaning facilities using perchloroethylene (PCE) as the cleaning solvent (PCE Dry Cleaning NESHAP). The proposed amendments addressed the results of the technology review for the PCE Dry Cleaning NESHAP, in accordance with section 112 of the Clean Air Act (CAA).

Publication Date: 
Wednesday, January 5, 2022 - 4:00am

National Perchloroethylene Air Emission Standards for Dry Cleaning Facilities Technology Review

The U.S. Environmental Protection Agency (EPA) is proposing amendments to the National Emission Standards for Hazardous Air Pollutants (NESHAP) for dry cleaning facilities using perchloroethylene (PCE) as the cleaning solvent (PCE Dry Cleaning NESHAP). The proposed amendments address the results of the technology review for the PCE Dry Cleaning NESHAP, in accordance with section 112 of the Clean Air Act (CAA).

Publication Date: 
Monday, December 27, 2021 - 4:00am

National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Arkansas

The Arkansas Department of Energy and Environment, Division of Environmental Quality (DEQ) has submitted a request to update the delegation and approval of its program for the implementation and enforcement of certain National Emission Standards for Hazardous Air Pollutants (NESHAP) promulgated under the Clean Air Act (CAA), as provided for under the delegation mechanism previously approved by the Environmental Protection Agency (EPA). The EPA is proposing to approve DEQ's requested update of its NESHAP delegation.

Publication Date: 
Wednesday, November 24, 2021 - 4:00am

National Emission Standards for Hazardous Air Pollutants: Surface Coating of Automobiles and Light-Duty Trucks, Surface Coating of Metal Cans, Boat Manufacturing, and Clay Ceramics Manufacturing; Technical Correction

In this action, the U.S. Environmental Protection Agency (EPA) is making technical corrections to four regulations under the National Emission Standards for Hazardous Air Pollutants (NESHAP) program.

Publication Date: 
Friday, November 19, 2021 - 4:00am

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