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EPA/OAR RIN: 2060-AW72 Publication ID: 2026 
Title: Treatment of Data Influenced by Exceptional Events: Rule Revisions 
Abstract:

The EPA is proposing to revise the Exceptional Events Rule to incorporate certain regulatory and implementation flexibilities as well as prioritize the allowance of prescribed fires. The Exceptional Events Rule implements Clean Air Act section 319(b), which outlines a pathway for air agencies to request the exclusion of air quality monitoring data influenced by exceptional events from certain regulatory actions.

 
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 14192 Designation: Deregulatory 
CFR Citation: 40 CFR 50    40 CFR 51   
Legal Authority: 42 U.S.C. 7401 et seq, CAA   
Legal Deadline:  None
Timetable:
Action Date FR Cite
NPRM  07/00/2026 
Final Rule  To Be Determined 
Additional Information: Docket #: EPA-HQ-OAR-2025-0195.
Regulatory Flexibility Analysis Required: No  Government Levels Affected: Federal, State 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Data Printed in the FR: No 
Related RINs: Related to 2060-AS02 
Agency Contact:
Alyssa Piliero
Environmental Protection Agency
Office of Air and Radiation
109 T.W. Alexander Drive, Mail Code C304-02,
Research Triangle Park, NC 27709
Phone:919 541-0863
Fax:919 685-3700
Email: piliero.alyssa@epa.gov