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EPA/OAR RIN: 2060-AT00 Publication ID: Fall 2018 
Title: National Emission Standards for Hazardous Air Pollutants: Stationary Combustion Turbine Residual Risk and Technology Review 
Abstract:

This proposal will address the agency's residual risk and technology review (RTR) of the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Stationary Combustion Turbines. The Stationary Combustion Turbine NESHAP, subpart YYYY, was promulgated pursuant to section 112(d) of the Clean Air Act (CAA) on March 5, 2004. The NESHAP established emission limitations based on maximum achievable control technology (MACT) for controlling emissions of hazardous air pollutants (HAP) from stationary combustion turbines. The HAP emitted from stationary combustion turbines include formaldehyde, toluene, benzene, and acetaldehyde. This action will implement the residual risk review requirements of CAA section 112(f)(2) and the technology review requirements of CAA section 112(d)(6). The statute directs the EPA to promulgate emission standards under CAA 112(f)(2) if such standards are required to provide an ample margin of safety to protect public health or to prevent, taking relevant factors into account, an adverse environmental effect. Any such standards are to be promulgated within 8 years after promulgation of MACT standards under CAA section 112(d). CAA section 112(d)(6) requires the EPA to review and revise the MACT standards as necessary, taking into account developments in practices, processes and control technologies, no less often than every 8 years. Pursuant to a court order, the EPA is obligated to complete the final action by March 13, 2020.

 
Agency: Environmental Protection Agency(EPA)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: No  Unfunded Mandates: Undetermined 
EO 13771 Designation: Other 
CFR Citation: 40 CFR 63, subpart YYYY     (To search for a specific CFR, visit the Code of Federal Regulations.)
Legal Authority: 42 U.S.C. 7412   
Legal Deadline:
Action Source Description Date
Final  Judicial  15-cv-00512-TSC; 3/13/17.  03/13/2020 
Timetable:
Action Date FR Cite
NPRM  02/00/2019 
Final Rule  12/00/2019 
Additional Information: Docket #:EPA-HQ-OAR-2017-0688
Regulatory Flexibility Analysis Required: Undetermined  Government Levels Affected: Undetermined 
Federalism: Undetermined 
Included in the Regulatory Plan: No 
RIN Data Printed in the FR: No 
Agency Contact:
Melanie King
Environmental Protection Agency
Office of Air and Radiation
109 T.W. Alexander Drive, Mail Code D243-01,
Research Triangle Park, NC 27711
Phone:919 541-2469
Email: king.melanie@epa.gov

Nick Hutson
Environmental Protection Agency
Office of Air and Radiation
109 T.W. Alexander Drive, Mail Code D243-01,
Research Triangle Park, NC 27711
Phone:919 541-2968
Fax:919 541-4991
Email: hutson.nick@epa.gov