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Mercury Cell ChlorAlkali Plants: National Emissions Standards for Hazardous Air Pollutants (NESHAP)

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Rule Summary

This action promulgates national emission standards for hazardous air pollutants (NESHAP), specifically mercury emissions, from mercury cell chlor-alkali plants. The final rule limits mercury air emissions from these plants. The final rule implements section 112(d) of the Clean Air Act (CAA) which requires all categories and subcategories of major sources and area sources listed under section 112(c) to meet hazardous air pollutant emission standards reflecting the application of the maximum achievable control technology (MACT).

Rule History

01/08/2021 - Proposed rule. | Proposed rule edits.

03/14/2011 - Supplemental proposed rule.

06/11/2008 - Proposed rule.

12/19/2003 - Final rule

08/22/2002 - Proposed rule; extension of public comment period

07/03/2002 - Proposed rule & Proposed decision not to regulate

Additional Resources

Fact Sheet: Proposed Amendments to Air Toxics Standards for Mercury Cell Chlor-Alkali Plants

Public Comment Review Tool for Mercury Cell ChlorAlkali Plants(1 MB) . To use this tool, please download the file to your computer and unzip, then follow the instructions in the included PDF file.

Fact sheets

View the supporting documents in the docket folder to find additional related documents to the rules.