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EPA/AR

RIN: 2060-AO24

Publication ID: Spring 2009

Title: Prevention of Significant Deterioration for PM2.5--Increments, Significant Impact Levels and Significant Monitoring Concentrations
Abstract: Section 166 of the Clean Air Act authorizes the Environmental Protection Agency to establish regulations to prevent significant deterioration of air quality due to emissions of any pollutant for which a NAAQS has been promulgated. The NAAQS for PM2.5 were promulgated in 1997. On November 1, 2005, EPA proposed regulations for the implementation of the PM2.5 program including the New Source Review (NSR) provisions. In that NPRM, we indicated that we would be proposing a separate rule for developing increments and Significant Impact Levels (SILs), and a Significant Monitoring Concentration (SMC) to facilitate implementation of a PM2.5 PSD program. This rulemaking will address those issues.
Agency: Environmental Protection Agency(EPA)	Priority: Other Significant
RIN Status: Previously published in the Unified Agenda	Agenda Stage of Rulemaking: Final Rule Stage
Major: No	Unfunded Mandates: No
CFR Citation: 40 CFR 52.21 40 CFR 51.166
Legal Authority: 42 USC 7410 42 USC 7470 to 7479 42 USC 7501 to 7503

Legal Deadline: None

Timetable:

Action	Date	FR Cite
NPRM	09/21/2007	72 FR 54112
Notice of Extension of Comments	11/20/2007	72 FR 65282
Final Action	10/00/2009

Additional Information: SAN No. 5068; EPA publication information: NPRM - http://www.epa.gov/fedrgstr/EPA-AIR/2007/September/Day-21/a18346.htm; EPA Docket information: EPA-HQ-OAR-2005-0605
Regulatory Flexibility Analysis Required: No	Government Levels Affected: Federal, Local, State, Tribal
Small Entities Affected: No	Federalism: No
Included in the Regulatory Plan: No
RIN Data Printed in the FR: No
Agency Contact: Dan DeRoeck Environmental Protection Agency Air and Radiation C504-03, Research Triangle Park, NC 27711 Phone:919 541-5593 Fax:919 541-5509 Email: deroeck.dan@epamail.epa.gov Chuck Buckler Environmental Protection Agency Air and Radiation C504-03, Research Triangle Park, NC 27711 Phone:919 541-0873 Fax:919 541-5509 Email: buckler.charles@epa.gov