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Industrial-Commercial-Institutional Steam Generating Units: New Source Standards of Performance (NSPS)

Rule Summary

Industrial-commercial-institutional steam generating units are boilers that are capable of combusting over 10 MMBtu/h of fuel. The New Source Performance Standards (NSPS) for industrial-commercial-institutional steam generating units are outlined in the Code of Federal Regulations (CFR) under 40 CFR Part 60 Subparts Db and Dc. Subpart Db covers industrial-commercial-institutional steam generating units with heat inputs greater than 100 MMBtu/h of that commenced constructed after September 18, 1978. Subpart Dc covers smaller industrial-commercial-institutional steam generating units that commenced constructed after June 9, 1989. The key pollutants the EPA regulates from these sources includes particulate matter (PM), nitrogen oxides (NOx), and sulfur dioxide (SO2).

Rule History

02/27/2014 – Final Rule; Revisions to Test Methods and Testing Regulations

02/16/2012 – Final Rule

05/03/2011 – Proposed Rule

01/20/2011 – Proposed Rule & Direct Final Rule

01/28/2009 – Final Rule

06/12/2008 – Proposed Rule

06/13/2007 – Final Reconsideration

02/09/2007 – Proposed Rule

02/27/2006 – Final Rule

02/28/2005 – Proposed Amendments

12/18/1989 – Final Rule

07/06/1989 – Proposed Revision of Rule

06/09/1989 – Proposed Rule and Notice of Public Hearing

01/13/1989 – Denial of Petitions for Reconsideration

12/16/1987 – Final Rule

06/19/1986 – Proposed Rule and Notice of Public Hearing

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Additional Resources

View the supporting documents for 2005 and subsequent rulemakings in the docket folder to find additional related documents to this rule.

Related Rules

Standards of Performance for Fossil-Fuel-Fired Steam Generators

Electric Utility Steam Generating Units (Boilers): New Source Performance Standards (NSPS)

Alternative Control Techniques Document: NOx Emissions from Industrial/Commercial/Institutional (ICI) Boilers

Industrial, Commercial, and Institutional Boilers and Process Heaters: National Emission Standards for Hazardous Air Pollutants (NESHAP) Major Sources

Industrial, Commercial, and Institutional Boilers: National Emission Standards for Hazardous Air Pollutants (NESHAP) Area Sources

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