Clay Ceramics Manufacturing: National Emission Standards for Hazardous Air Pollutants (NESHAP)
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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.
10/10/2019 - Final Amendments
08/20/2018 - Proposed Amendments
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
View the supporting documents in the docket folder for the rule to find additional related documents.