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EPA/OAR RIN: 2060-AU96 Publication ID: Fall 2022 
Title: Stds of Performance for Steel Plants:EAFs Constructed After 10/21/74 & on or Before 8/17/83;Stds of Performance for Steel Plants:EAFs & AOD Constructed After 8/17/83 

This action will address the agency’s review of the New Source Performance Standards (NSPS) for Standards of Performance for Steel Plants: Electric Arc Furnaces Constructed After October 21, 1974, and on or Before August 17, 1983; and Standards of Performance for Steel Plants: Electric Arc Furnaces and Argon-Oxygen Decarburization Vessels Constructed After August 17, 1983 (EAF NSPS). The EAF NSPS, subparts AA and AAa were promulgated pursuant to section 111(b) of the Clean Air Act (CAA) on September 23, 1975 (40 FR 43850), and October 31, 1984 (49 FR 43845), respectively. The EAF NSPS established standards of performance in the form of emission limitations and monitoring requirements based on the best system of emission reductions (BSER) (taking into account the cost of achieving such reduction and any non-air quality health and environmental impact and energy requirements). The parameters regulated at electric arc furnaces and argon oxygen vessels include particulate matter emissions and opacity. This action would implement the review requirements of CAA section 111(b)(1)(B). CAA section 111(b)(1)(B) requires the EPA to review, and, if appropriate, revise the standards of performance based on the BSER, no less often than every 8 years. Pursuant to the consent decree in Our Children’s Earth Foundation v. Wheeler, No. 18-cv-04765 (N.D. Cal. entered May 10, 2019), the EPA is obligated to propose this action by May 2, 2022, and complete this action by August 1, 2023.

Agency: Environmental Protection Agency(EPA)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Final Rule Stage 
Major: No  Unfunded Mandates: No 
CFR Citation: 40 CFR 60, subpart AA    40 CFR 60, subpart AAa     (To search for a specific CFR, visit the Code of Federal Regulations.)
Legal Authority: 42 U.S.C. 7401 et seq., Clean Air Act   
Legal Deadline:
Action Source Description Date
Final  Judicial  18-cv-04765-WHO; 5/10/19  05/01/2023 
NPRM  Judicial  18-cv-04765-WHO; 5/10/19  05/02/2022 
Action Date FR Cite
NPRM  05/16/2022  87 FR 29710   
NPRM Comment Period Extended  07/13/2022  87 FR 41639   
NPRM Comment Period Extended  08/12/2022  87 FR 49796   
NPRM Comment Period End  08/14/2022 
NPRM Comment Period End  08/15/2022 
Final Rule  08/00/2023 
Additional Information: EPA-HQ-OAR-2002-0049.
Regulatory Flexibility Analysis Required: No  Government Levels Affected: None 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
Sectors Affected: 331110 Iron and Steel Mills and Ferroalloy Manufacturing 
RIN Data Printed in the FR: No 
Agency Contact:
Donnalee Jones
Environmental Protection Agency
Office of Air and Radiation
Research Triangle Park, NC 27711
Phone:919 541-5251
Fax:919 541-3207

Chuck French
Environmental Protection Agency
Office of Air and Radiation
109 T.W. Alexander Drive, Mail Code D243-02,
Research Triangle Park, NC 27711
Phone:919 541-7912
Fax:919 541-4991