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EPA/AR RIN: 2060-AS02 Publication ID: Spring 2015 
Title: Treatment of Data Influenced by Exceptional Events--Rule Revisions 
Abstract:

This proposed action will revise the Exceptional Events rulemaking to clarify and streamline certain rule elements, including, but not limited to, those associated with high wind dust events, historical fluctuations, the "not reasonably controllable or preventable" criterion, and the "but for" criterion. On March 22, 2007, the EPA promulgated the "Treatment of Data Influenced by Exceptional Events; Final Rule" pursuant to the 2005 amendment of Clean Air Act. This rule, known as the Exceptional Events Rule (EER), superseded the EPA's previous natural events guidance and those sections of the interim fire policy document that address exceptional events. The EER created a regulatory process. These regulatory sections contain definitions, procedural requirements, requirements for air agency demonstrations, and criteria for the EPA approval for the exclusion of air quality data from regulatory decisions under the EER. Since EPA promulgated the EER in 2007, numerous interested parties have raised questions and issues regarding implementation of the 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: uncollected 
CFR Citation: 40 CFR 51    40 CFR 50   
Legal Authority: 42 U.S.C. 7619 Clean Air Act   
Legal Deadline:  None
Timetable:
Action Date FR Cite
NPRM  10/00/2015 
Final Rule  To Be Determined 
Regulatory Flexibility Analysis Required: Undetermined  Government Levels Affected: State, Tribal 
Federalism: No 
Included in the Regulatory Plan: No 
RIN Data Printed in the FR: No 
Agency Contact:
Andy Chang
Environmental Protection Agency
Air and Radiation
C539-04,
Research Triangle Park, NC 27711
Phone:919 541-2416
Fax:919 541-5315
Email: chang.andy@epa.gov