On March 9, 2020, EPA published the residual risk and technology review (RTR) of the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Stationary Combustion Turbines. EPA evaluated the risks remaining after fully implementing the 2004 NESHAP for Stationary Combustion Turbines and determined that risks from this source category are acceptable. In addition, the agency identified no developments in practices, processes or control technologies that would further reduce emissions of air toxics. EPA is not making significant changes to the original NESHAP for this source category and has determined the standards continue to provide an ample margin of safety to protect public health and the environment.
EPA is finalizing only minor amendments to the existing regulation. These amendments clarify that the standards are applicable during periods of startup, shutdown and malfunction and require electronic reporting of performance test results.
On August 13, 2020, EPA granted reconsideration petition from Earthjustice for the final RTR of the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Stationary Combustion Turbines. See the petition for reconsideration and the granting of reconsideration letters.You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.
- Fact Sheet: Final Amendments to Air Toxics Standards for Stationary Combustion Turbines (PDF)(3 pp, 194 K)
Stationary Turbines RTR Reconsideration Petition (PDF)(7 pp, 91 K,
EarthJustice reconsideration petition of the final Stationary Turbines RTR
Letter Granting Reconsideration for the Stationary Turbines RTR (PDF)(1 pg, 25 K,
EPA letter granting reconsideration of the Stationary Turbines RTR