Clay Ceramics Manufacturing: National Emission Standards for Hazardous Air Pollutants (NESHAP)
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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
11/1/2021 – Minor Technical Corrections (86 FR 66038)
11/1/2019 - Final Amendments (84 FR 58601)
08/20/2018 - Proposed Amendments (83 FR 42066)
12/04/2015 – Final Rule; correction (80 FR 75817)
10/26/2015 – Final Rule (80 FR 65470)
12/31/2014 – Supplemental Notice of Proposed Rulemaking (79 FR 78768)
12/18/2014 – Proposed Rule (79 FR 75622)
06/23/2006 – CFR Correction (71 FR 36014)
11/17/2005 – Notice of Final Action on Reconsideration (70 FR 69655)
04/22/2005 – Notice of Reconsideration of Final Rule (70 FR 21094)
05/28/2003 – CFR correction (68 FR 31744)
05/16/2003 – Final Rule (68 FR 26690)
07/22/2002 – Proposed Rule (67 FR 47894)
Additional Resources
Fact Sheet: Final Amendments to Clay Ceramics Manufacturing NESHAP
Fact Sheet: Proposed Amendments to Clay Ceramics Manufacturing NESHAP
Memorandum: Final Maximum Achievable Control Technology (MACT) Floor Analysis for Clay Ceramics
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.