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EPA/AR

RIN: 2060-AO96

Publication ID: Fall 2008

Title: Implementation of the 8-Hour Ozone National Ambient Air Quality Standards: Revisions for Subpart 1 Areas and 1-Hour Contingency Measures
Abstract: This rulemaking action proposes revisions to the Phase 1 and Phase 2 rule for implementation of the 8-hour ozone national ambient air quality standard (NAAQS) to address partial vacatur by the U.S. Circuit Court of Appeals for the District of Columbia Circuit. The rulemaking would propose to do the following: (1) Remove the provision that places some 8-hour ozone nonattainment areas under title I, part D, subpart 1 of the CAA; (2) Remove the exemption from anti-backsliding for the following three obligations under the now-revoked 1-hour ozone NAAQS: - New source review; - CAA section 185 penalty fees for severe and extreme areas that fail to attain the 1-hour standard by their attainment date; and - contingency measures for failure to attain the 1-hour standard or make reasonable progress toward attainment. The proposal also addresses: (1) the classification system for nonattainment areas that the implementation rule originally covered under Clean Air Act (CAA) title I, part D, subpart 1; and (2) contingency measures that apply as anti-backsliding measures under the now-revoked 1-hour standard.
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
CFR Citation: 40 CFR 51
Legal Authority: 42 USC 7410 42 USC 7511 to 7511f 42 USC 7601(a)(1)

Legal Deadline: None

Timetable:

Action	Date	FR Cite
NPRM	12/00/2008
Final Action	08/00/2009

Additional Information: SAN No. 5194
Regulatory Flexibility Analysis Required: No	Government Levels Affected: Federal, Local, State
Small Entities Affected: No	Federalism: No
Included in the Regulatory Plan: No
RIN Data Printed in the FR: No
Agency Contact: John Silvasi Environmental Protection Agency Air and Radiation C539-01, Research Triangle Park, NC 27711 Phone:919 541-5666 Fax:919 541-0824 Email: Silvasi.John@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