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
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)