• Rule Summary
• Rule History
• Additional Resources
• Compliance

Rule Summary

Section 111 of the Clean Air Act (CAA) requires the EPA to list categories of stationary sources, if such sources cause or contribute significantly to air pollution, which may reasonably be anticipated to endanger public health or welfare. The EPA must then issue performance standards for such source categories. This new source performance standard regulates sulfur dioxide (SO₂) emissions from new, modified, and reconstructed sweetening units and sulfur recovery units located at onshore natural gas processing facilities.

Rule History

08/16/2012 – New Source Performance Standards and National Emissions Standards for Hazardous Air Pollutants Reviews: Final Rule

08/23/2011 – New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants Reviews: Proposed Rule

10/17/2000 – Amendments for Testing and Monitoring Provisions: Final Rule

01/14/1998 – Amendments for Testing and Monitoring Provisions: Supplemental

08/27/1997 – Amendments for Testing and Monitoring Provisions: Proposed Rule

02/14/1989 – Standards of Performance for New Stationary Sources; Amendments to Test Methods and Procedures:  Final Rule

02/19/1988 – Standards of Performance for New Stationary Sources; Amendments to Test Methods and Procedures; Proposed Rule and Notice of Public Hearing

10/01/1985 – Standards of Performance for New Stationary Sources; Onshore Natural Gas Processing SO₂ Emissions: Final Rule

01/20/1984 – Standards of Performance for New Stationary Sources: Equipment Leaks of VOC and SO₂ Emissions From Onshore Natural Gas Processing Plants; Proposed Rules

01/20/1984 – Standards of Performance for New Stationary Sources; Onshore Natural Gas Processing SO2 Emissions From Onshore Natural Gas Processing; Proposed Rule and Notice of Public Hearing

Additional Resources

EPA's Actions to Reduce Methane and Volatile Organic Compound (VOC) Emissions from the Oil and Natural Gas Industry: 2016 Final Rules and Draft Information Collection Request Fact Sheet and Presentation

Sources Covered by the 2012 New Source Performance Standards (NSPS) for Volatile Organic Compounds (VOCs) and the 2016 NSPS for Methane and VOCs, by Site

Fact Sheets and Additional Information Regarding the 2012 Final Amendments to Air Regulations for the Oil and Natural Gas Industry

Related Actions

Compliance

Applicability Determination Index (ADI).  The ADI is maintained by EPA's Office of Enforcement and Compliance Assurance (OECA) and provides a data base of memoranda dealing with applicability issues.  The database is searchable by Subpart.