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EPA/OAR RIN: 2060-AT08 Publication ID: Spring 2017 
Title: Lime Manufacturing Risk and Technology Review 
Abstract: This action will address the agency's residual risk and technology review (RTR) of the National Emission Standards for Hazardous Air Pollutants (NESHAP) for lime manufacturing. The Lime Manufacturing NESHAP, subpart AAAAA, was promulgated pursuant to section 112(d) of the Clean Air Act (CAA) in January 2004. The NESHAP established emission limitations and work practice requirements based on maximum achievable control technology (MACT) for control of hazardous air pollutants (HAP) from kilns at new and existing lime manufacturing plants. The pollutants emitted from lime manufacturing kilns include metallic HAP, hydrogen chloride, particulate matter, sulfur dioxide, nitrogen oxides and carbon dioxide. These pollutants are predominantly originating from the limestone feed material and the fuels used, and are formed from the combustion of fuels and the heating of feed material in the kiln. This action will implement the residual risk review requirements of CAA section 112(f) 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 June 30, 2020. 
Agency: Environmental Protection Agency(EPA)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Long-Term Actions 
Major: No  Unfunded Mandates: Undetermined 
CFR Citation: 40 CFR 63   
Legal Authority: 42 U.S.C. 7401 et seq. Clean Air Act   
Legal Deadline:
Action Source Description Date
Final  Judicial  16-cv-00364-CRC; Filed March 22, 2017.  06/30/2020 

Overall Description of Deadline: None

Timetable:
Action Date FR Cite
NPRM  10/00/2018 
Final Rule  10/00/2019 
Regulatory Flexibility Analysis Required: Undetermined  Government Levels Affected: None 
Small Entities Affected: Undetermined  Federalism: No 
Included in the Regulatory Plan: No 
Sectors Affected: 327410 Lime Manufacturing 
RIN Data Printed in the FR: No 
Agency Contact:
Jim Eddinger
Environmental Protection Agency
Office of Air and Radiation
109 T.W. Alexander Drive, Mail Code D243-01,
Research Triangle Park, NC 27711
Phone:919 541-5426
Email: eddinger.jim@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