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

Rule Summary

Fossil fuel-fired electric utility steam generating units are boilers that are capable of combusting over 250 MMBtu/h of fossil fuel and that was constructed for the purpose of supplying more than one-third of its potential electric output capacity and more than 25 MW electrical output to any utility power distribution system for sale. The New Source Performance Standards (NSPS) for fossil fuel-fired electric utility steam generating units are outlined in the Code of Federal Regulations under 40 CFR Part 60 Subpart Da. Subpart Da covers fossil fuel-fired electric utility steam generating units that commenced constructed after September 18, 1978. The key pollutants EPA regulates from these sources includes particulate matter (PM), nitrogen oxides (NOx), and sulfur dioxide (SO2).

Rule History

02/17/2015 - Proposed Rule

06/25/2013 - Reopening of Comment Period

04/24/2013 - Notice of Final Action on Reconsideration

12/12/2012 - Extension of Public Comment Period

11/30/2012 - Proposed Rules

04/19/2012 - Final rule; correction

02/16/2012 - Final rule

05/03/2011 - Proposed Rule

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

07/01/2011 - Proposed Rule

06/13/2007 - Final rule

03/06/2007 - Extension of public comment period

02/09/2007 - Proposed rule

02/27/2006 - Final rule

02/28/2005 - Proposed rule

08/14/2011 - Removal of Modification

06/11/2011 - Partial Withdrawal of Direct Final Rule

04/10/2001 - Proposed Rule & Direct Final Rule

09/16/1998 - Final rule

07/09/1997 - Proposed rule

06/11/1979 - Final Rule

09/19/1978 - Proposed Rule

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Additional Resources

View the supporting documents for the rulemakings from 2005 to 2011 docket folder to find additional related documents to these rules.

View the supporting documents for the rulemakings from 2011 to 2015 in the docket folder to find additional related documents to these rules.

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