Environmental Protection Agency Docket EPA-HQ-OAR-2020-0560 Proposed Rule

2021-03374: National Emission Standards for Hazardous Air Pollutants: Mercury Cell Chlor-Alkali Plants, Primary Magnesium Refining, Flexible Polyurethane Foam Fabrication Operations, Refractory Products Manufacturing, Carbon Black Production, and Cyanide Chemicals Manufacturing Residual Risk and Technology Reviews; Extension of Comment Periods

Comment Period Closed

Public comment closed .

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Summary

The U.S. Environmental Protection Agency (EPA) is exending comment periods for proposed rules titled "National Emission Standards for Hazardous Air Pollutants: Mercury Cell Chlor-Alkali Plants Residual Risk and Technology Review" and "National Emission Standards for Hazardous Air Pollutants: Primary Magesium Refining Residual Risk and Technology Review," published on January 8, 2021, "National Emission Standards for Hazardous Air Pollutants: Flexible Foam Fabrication Operations Residual Risk and Technology Review and Flexible Polyurethane Foam Production and Fabrication Area Source Technology Review," published on January 11, 2021, "National Emission Standards for Hazardous Air Pollutants: Refractory Products Manufacturing Residual Risk and Technology Review" and "National Emission Standards for Hazardous Air Pollutants: Carbon Black Production Residual Risk and Technology Review," published January 14, 2021, and "National Emission Standards for Hazardous Air Pollutants: Cyanide Chemicals Manufacturing Residual Risk and Technology Review," published on January 15, 2021, to allow additional time for stakeholders to review and comment on the proposals.

The agency’s own summary, as published.

What this changes

Amends 1 part of the Code of Federal Regulations — the standing rules this notice rewrites.

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