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EPA/OAR RIN: 2060-AT02 Publication ID: Fall 2018 
Title: National Emission Standards for Hazardous Air Pollutants: Generic Maximum Achievable Control Technology Standards Residual Risk and Technology Review for Ethylene Production 
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 Ethylene Production. The Ethylene Production NESHAPs, subparts XX and YY, were promulgated pursuant to section 112(d) of the Clean Air Act (CAA) on July 12, 2002, and further amended on April 13, 2005. The NESHAP established emission limitations and work practice requirements based on maximum achievable control technology (MACT) for controlling emissions of hazardous air pollutants (HAP) from ethylene process vents, storage vessels, transfer racks, equipment, heat exchange systems and waste streams. The HAP emitted from ethylene process vents, storage vessels, transfer racks, equipment, heat exchange systems and waste streams include benzene, 1,3-butadiene, hexane, toluene and naphthalene. 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). CAA 112(f)(2) directs EPA to revise the NESHAP if such revisions 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. 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. In consideration of this deadline, which also applies to 19 other RTR source categories, we established an internal schedule for this RTR to be proposed and finalized prior to the consent decree deadline.

 
Agency: Environmental Protection Agency(EPA)  Priority: Other Significant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: No  Unfunded Mandates: No 
EO 13771 Designation: Other 
CFR Citation: 40 CFR 63   
Legal Authority: 42 U.S.C. 7412, Clean Air Act   
Legal Deadline:
Action Source Description Date
Final  Judicial  15-cv-00512-TSC, 3/13/17.  03/13/2020 

Overall Description of Deadline: Final Rule 3/13/2020--Court Order: United States District Court for the District of Columbia; California Communities Against Toxics, et al. v. Scott Pruitt; Case 1:15-cv-00512-TSC; 3/13/17.

Timetable:
Action Date FR Cite
NPRM  12/00/2018 
Final Rule  01/00/2020 
Additional Information: Docket #:EPA-HQ-OAR-2017-0357
Regulatory Flexibility Analysis Required: No  Government Levels Affected: None 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
Sectors Affected: 325110 Petrochemical Manufacturing 
RIN Data Printed in the FR: No 
Agency Contact:
Andrew Bouchard
Environmental Protection Agency
Office of Air and Radiation
109 T.W. Alexander Drive, Mail Code E143-01,
Research Triangle Park, NC 27709
Phone:919 541-4036
Email: bouchard.andrew@epa.gov

Brenda Shine
Environmental Protection Agency
Office of Air and Radiation
109 T.W. Alexander Drive, Mail Code E143-01,
Research Triangle Park, NC 27711
Phone:919 541-3608
Fax:919 541-0516
Email: shine.brenda@epa.gov