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EPA/AR RIN: 2060-AH93 Publication ID: Fall 2008 
Title: Revisions to the General Conformity Regulations 
Abstract: Section 176(c) of the Clean Air Act prohibits Federal entities from taking actions which do not conform to the State implementation plan (SIP) for the attainment and maintenance of the national ambient air quality standards (NAAQS). In November 1993, EPA promulgated two sets of regulations to implement section 176(c). First, on November 24, EPA promulgated the Transportation Conformity Regulations to establish the criteria and procedures for determining that transportation plans, programs, and projects which are funded under title 23 U.S.C. or the Federal Transit Act conform with the SIP. Then, on November 30, EPA promulgated regulations, known as the General Conformity Regulations, to ensure that other Federal actions also conformed to the SIPs. The EPA has not reviewed or revised the General Conformity Regulations since their 1993 promulgation. Several Federal agencies have identified concerns over the implementation of the General Conformity Regulations, including the requirements for areas designated nonattainment for the newly promulgated NAAQS. 
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 51.850 to 51.860    40 CFR 93.150 to 93.160   
Legal Authority: 42 USC 7401 to 7671   
Legal Deadline:  None
Timetable:
Action Date FR Cite
NPRM  01/08/2008  73 FR 1402   
Final Action  04/00/2009    
Additional Information: SAN No. 4070; EPA publication information: NPRM - http://frwebgate6.access.gpo.gov/cgi-bin/waisgate.cgi?WAISdocID=620448219337+0+0+0&WAISaction=retrieve; EPA Docket information: EPA-HQ-OAR-2006-0669
Regulatory Flexibility Analysis Required: No  Government Levels Affected: Federal, State, Tribal 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Data Printed in the FR: No 
Agency Contact:
Tom Coda
Environmental Protection Agency
Air and Radiation
C539-01,
Research Triangle Park, NC 27711
Phone:919 541-3037
Email: coda.tom@epa.gov