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EPA/OAR RIN: 2060-AT99 Publication ID: Fall 2018 
Title: Mercury and Air Toxics Standards for Power Plants Residual Risk and Technology Review and Cost Review 
Abstract:

This action will address the Agency's residual risk and technology review (RTR) of the National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units (commonly referred to as the Mercury and Air Toxics Standards (MATS)), 40 CFR 63, subpart UUUUU, promulgated pursuant to section 112(d) of the Clean Air Act (CAA) on February 16, 2012 (67 FR 9464), and address other issues associated with the 2012 rule.

 
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:  None

Statement of Need:

The EPA has completed its initial review of the MATS Supplemental Cost Finding (81 FR 24420, April 25, 2016) to determine if the finding will be reconsidered. The EPA will issue the results of the review in a notice of proposed rulemaking and will solicit comment on the resulting finding. The EPA will also, in the same action, propose the results of the RTR for MATS.

Summary of the Legal Basis:

CAA section 112, 42 U.S.C. 7412, provides the legal framework and basis for regulatory actions addressing emissions of hazardous air pollutants from stationary sources. CAA section 112(f)(2) requires EPA, within 8 years of the promulgation of standards under CAA section 112(d), to determine whether additional standards are needed to provide an ample margin of safety to protect public health or to prevent an adverse environmental effect. CAA section 112(d)(6) requires EPA to review, and revise as necessary, emission standards promulgated under CAA section 112(d) at least every 8 years, taking into account developments in practices, processes and control technologies.

Alternatives:

Not yet determined. The EPA will consider whether alternative options are warranted once the Agency has completed the review of the Supplemental Cost Finding and the RTR.

Anticipated Costs and Benefits:

Not yet determined. Costs and benefits will depend upon the results of the review of the Supplemental Cost Finding and on the results of the RTR.

Risks:

Not yet determined. Risks will depend upon the results of the review of the Supplemental Cost Finding and on the results of the RTR.

Timetable:
Action Date FR Cite
NPRM  11/00/2018 
Final Rule  To Be Determined 
Additional Information: Docket #:EPA-HQ-OAR-2009-0234
Regulatory Flexibility Analysis Required: No  Government Levels Affected: Federal, Local, State, Tribal 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: Yes 
Sectors Affected: 221112 Fossil Fuel Electric Power Generation; 221122 Electric Power Distribution; 921150 American Indian and Alaska Native Tribal Governments 
RIN Data Printed in the FR: No 
Agency Contact:
Mary Johnson
Environmental Protection Agency
Office of Air and Radiation
109 T.W. Alexander Drive, Mail Code D243-01,
Research Triangle Park, NC 27711
Phone:919 541-5025
Email: johnson.mary@epa.gov

Nick Hutson
Environmental Protection Agency
Office of Air and Radiation
D243-01,
Research Triangle Park, NC 27711
Phone:919 541-2968
Email: hutson.nick@epa.gov