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Clay Ceramics Manufacturing: National Emission Standards for Hazardous Air Pollutants (NESHAP)

Rule Summary

The Clay Ceramics Manufacturing rule covers facilities that manufacture ceramic floor and wall tile and sanitaryware (toilets, sinks, etc.)  The primary raw materials used for manufacturing sanitaryware are ball clay, other clays, feldspar and silica, whereas ceramic tile is made primarily from ball clay, talc, nepheline syenite (an igneous rock comprised of nepheline, microcline and albite), fire clay and shale. However, while the raw materials are similar for ceramic floor and wall tile, the mix for ceramic wall tile includes more talc and less ball clay, resulting in a lighter-weight mix. Emissions regulated from these industries are acid gases, particulate matter, metals, and mercury.

Rule History

12/04/2015 – Final Rule; correction

10/26/2015 – Final Rule

12/31/2014 – Supplemental Notice of Proposed Rulemaking

12/18/2014 – Proposed Rule

06/23/2006 – CFR Correction

11/17/2005 – Notice of Final Action on Reconsideration

04/22/2005 – Notice of Reconsideration of Final Rule

05/28/2003 – CFR correction

05/16/2003 – Final Rule

07/22/2002 – Proposed Rule

Additional Resources

Final Regulations to Reduce Toxic Air Pollutant Emissions from Brick and Structural Clay Products Manufacturing and Clay Ceramics Manufacturing Fact Sheets

National Emission Standards for Hazardous Air Pollutants for Clay Ceramics Manufacturing: Background Information for Final Rule - Summary of Public Comments and Responses. September 2015

Memorandum: Final Maximum Achievable Control Technology (MACT) Floor Analysis for Clay Ceramics

Characterization of Dioxin Emissions from Sources That Use Ball Clays Emission Test Report: Unimin Corporation, Gleason, Tn Final Report (Non-Confidential Version)

Economic Impact Analysis of the Clay Ceramics Manufacturing NESHAP: Final Rule

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

Related Rules

Clay Ceramics Manufacturing Area Sources: National Emission Standards for Hazardous Air Pollutants (NESHAP)