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Refractory Products Manufacturing: National Emissions Standards for Hazardous Air Pollutants (NESHAP)

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Rule Summary

This rule regulates new and existing refractory products manufacturing facilities requiring all major sources to meet HAP emission standards reflecting the application of maximum achievable control technology (MACT). The final rule protects air quality

and promotes the public health by reducing emissions of several HAP, including:

  • ethylene glycol,
  • formaldehyde,
  • hydrogen fluoride (HF),
  • hydrochloric acid (HCl),
  • methanol,
  • phenol, and
  • polycyclic organic matter (POM).

The rule regulates emissions from the manufacturing processes for both clay and non-clay refractories.

Rule History

02/12/2021 - Pre-publication proposed rule; extension of public comment period

01/14/2020 - Proposed rule | Proposed rule edits

04/16/2002 - Final rule

06/20/2002 - Proposed rule

Additional Resources

Fact Sheet: Proposed Amendments to Air Toxics Standards for Refractory Products Manufacturing

Public Comment Review Tool(1 MB)   for Refractory Products Manufacturing RTR modeling file. To use this tool, please download the file to your computer and unzip, then follow the instructions in the included PDF file.

Fact Sheet


Implementation Documents