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EPA/OAR RIN: 2060-AW93 Publication ID: 2026 
Title: ●Stationary Compression Ignition Engine NSPS Amendments 
Abstract:

This action will amend the Standards for Performance for Stationary Compression Ignition Internal Combustion Engines, codified at 40 CFR part 60, subpart IIII. Specifically, this action will revise the approach to certification and inducements for stationary compression ignition engines equipped with selective catalytic reduction and certified to the emission standards in subpart IIII.

 
Agency: Environmental Protection Agency(EPA)  Priority: Substantive, Nonsignificant 
RIN Status: First time published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: No  Unfunded Mandates: No 
EO 14192 Designation: Deregulatory 
CFR Citation: 40 CFR Part 60, Subpart IIII     (To search for a specific CFR, visit the Code of Federal Regulations.)
Legal Authority: 42 U.S.C. 7411   
Legal Deadline:  None
Timetable:
Action Date FR Cite
NPRM  07/00/2026 
Final Rule  01/00/2027 
Regulatory Flexibility Analysis Required: No  Government Levels Affected: Federal, Local, State, Tribal 
Small Entities Affected: Businesses  Federalism: No 
Included in the Regulatory Plan: No 
RIN Information URL: https://www.epa.gov/stationary-engines  
Sectors Affected: 2211 Electric Power Generation, Transmission and Distribution 
RIN Data Printed in the FR: No 
Agency Contact:
Melanie King
Environmental Protection Agency
Office of Air and Radiation
109 T.W. Alexander Drive, Mail Code D243-01,
Research Triangle Park, NC 27711
Phone:919 541-2469
Email: king.melanie@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