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EPA/OAR RIN: 2060-AV09 Publication ID: Fall 2022 
Title: Amendments to the NSPS for GHG Emissions From New, Modified, & Reconstructed Stationary Sources: EGUs 

Under CAA section 111(b), EPA sets New Source Performance Standards (NSPS) for GHG emissions from new, modified, and reconstructed fossil fuel-fired power plants. In 2015, EPA finalized regulations to limit GHG emissions from new fossil-fuel fired utility boilers and from natural gas-fired stationary combustion turbines. That rulemaking determined that the best system of emission reduction (BSER) for greenhouse gases (GHGs) for newly constructed coal-fired steam generating units (i.e., EGUs) is efficient generation in combination with partial carbon capture and storage, the BSER for natural gas-fired base load combustion turbine EGUs is efficient generation (i.e., the use of combined cycle technology), and the BSER for non-base load and multi-fuel-fired combustion turbine EGUs is the use of clean fuels. In 2018, EPA proposed to revise the BSER for coal fired EGUs to be efficient generation. To date, that proposed action has not been finalized. The purpose of this action is to conduct a comprehensive review of the NSPS and, if appropriate, amend the emission standards for new fossil fuel fired EGUs. EPA anticipates issuing a proposed rule in spring 2023, and promulgating a final rule by Summer 2024.

Agency: Environmental Protection Agency(EPA)  Priority: Other Significant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: Undetermined  Unfunded Mandates: Undetermined 
CFR Citation: 40 CFR 60, subpart TTTT     (To search for a specific CFR, visit the Code of Federal Regulations.)
Legal Authority: 42 U.S.C. 7411 Clean Air Act    42 U.S.C. 7414, 7601   
Legal Deadline:  None

Statement of Need: New EGUs are a significant source of GHG emissions. This action will evaluate options to reduce those emissions.

Summary of the Legal Basis: Clean Air Act section 111(b) provides the legal framework for establishing greenhouse gas emission standards for new electric generating units.

Alternatives: EPA evaluated several options for reducing GHG emissions from new EGUs

Anticipated Costs and Benefits: Undetermined.

Risks: Undetermined.

Action Date FR Cite
NPRM  04/00/2023 
Final Rule  06/00/2024 
Additional Information: .
Regulatory Flexibility Analysis Required: Undetermined  Government Levels Affected: Undetermined 
Federalism: Undetermined 
Included in the Regulatory Plan: Yes 
Sectors Affected: 22111 Electric Power Generation; 221112 Fossil Fuel Electric Power Generation 
RIN Data Printed in the FR: No 
Related RINs: Related to 2060-AT56 
Agency Contact:
Christian Fellner
Environmental Protection Agency
Office of Air and Radiation
109 T.W. Alexander Drive, Mail Code D243-01,
Research Triangle Park, NC 27711
Phone:919 541-4003
Fax:919 541-4991

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