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Federal Register · Proposed Rule · Jun 20, 2025
In designated nonattainment areas where air quality data demonstrate that a NAAQS has been attained, the EPA interprets certain requirements of the Clean Air Act (CAA) as no longer applicable for so long … modeling periods.
90 FR 26235Environmental Protection AgencyFederal Register · Rule · Aug 8, 2013
The Maintenance Plan meets the requirements of Section 110(a)(1) of the Federal Clean Air Act (CAA or Act), EPA's rules, and is consistent with EPA's guidance. … Wegman to Air Division Directors, Maintenance Plan Guidance Document for Certain 8-hour Ozone Areas Under Section 110(a)(1) of Clean Air Act, May 20, 2005).
78 FR 48318Environmental Protection AgencyFederal Register · Proposed Rule · Mar 15, 2023
Information About the Documents Two sections of the Clean Air Act (CAA or the Act) govern the establishment and revision of the NAAQS. … Section 109(d)(1) of the Act requires periodic review and, if appropriate, revision of existing air quality criteria.
88 FR 15940Environmental Protection AgencyFederal Register · Rule · May 9, 2025
ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 52 [EPA-R10-OAR-2024-0373; FRL-12413-02-R10] Air Plan Approval; WA; Southwest Clean Air Agency; Revisions to Excess Emissions, Startup, Shutdown, and General … The public comment period for our proposed approval and determination ended on January 9, 2025, and no comments were received, adverse or otherwise.
90 FR 19650Environmental Protection AgencyFederal Register · Rule · Mar 16, 2022
The EPA is finalizing approval of the SIP revisions because the Agency has determined that they are in accordance with the requirements for SIP provisions under the Clean Air Act (CAA or the Act) and correct … Thus, in reviewing SIP submissions, the EPA's role is to approve state choices, provided that they meet the criteria of the Clean Air Act.
87 FR 14802Environmental Protection AgencyFederal Register · Proposed Rule · Jan 23, 2026
This action is being taken under the Clean Air Act (CAA). DATES: Written comments must be received on or before February 23, 2026. … of 1995 (15 U.S.C. 272 note) because application of those requirements would be inconsistent with the Clean Air Act; In addition, this proposed CDD for the Baltimore Area for the 2015 ozone NAAQS does
91 FR 2887Environmental Protection AgencyFederal Register · Rule · Mar 30, 2007
The final rule contains the funding share for eligible projects that complies with the requirements of 49 U.S.C. 5308 and the Clean Air Act. … Accordingly, the Federal share for eligible projects cannot exceed 90 percent of the net cost to comply with or maintain compliance with the Clean Air Act.
72 FR 15049Transportation DepartmentFederal Transit AdministrationFederal Register · Uncategorized Document · Feb 24, 1994
This action is being taken under section 110 of the Clean Air Act. … (See section 307(b)(2) of the Clean Air Act.)
Environmental Protection AgencyFederal Register · Rule · Aug 15, 2013
to the Clean Air Act, unless the context indicates otherwise. … Response to Comments V. Consideration of Section 110(1) of the Clean Air Act VI. Final Action VII. Statutory and Executive Order Reviews I.
78 FR 49685Environmental Protection AgencyFederal Register · Rule · Jun 13, 1997
Background Subpart 2 of Part D of Title I of the Clean Air Act contains various air quality planning and State Implementation Plan (SIP) submission requirements for ozone nonattainment areas. … All public comments received will then be addressed in a subsequent final rule based on this action serving as a proposed rule. EPA will not institute a second comment period on this action.
62 FR 32204Environmental Protection AgencyFederal Register · Rule · Sep 16, 2003
The purpose of these revisions is to make the revised regulations consistent with the requirements of the Clean Air Act. … In reviewing SIP submissions, EPA's role is to approve state choices, provided that they meet the criteria of the Clean Air Act.
68 FR 54163Environmental Protection AgencyFederal Register · Rule · May 17, 2004
Public Comments and EPA Responses EPA's proposed action provided a 30-day public comment period. During this period, we received comments from the following parties. 1. … Comment 8: Earthjustice argues that the District's offset equivalency tracking system fails to comply with “some of the most basic elements” of the Clean Air Act.
69 FR 27837Environmental Protection AgencyApproval of California Air Plan Revisions, Western Mojave Desert, Rate of Progress Demonstration
Federal Register · Rule · Jun 23, 2017
Public Comments The EPA's proposed action provided a 30-day public comment period. We received one comment, which was submitted anonymously. … Thus, in reviewing SIP submissions, the EPA's role is to approve state choices, provided that they meet the criteria of the Clean Air Act.
82 FR 28560Environmental Protection AgencyFederal Register · Rule · Aug 2, 2001
EPA received numerous comments during the comment period. … Air Act.
66 FR 40137Environmental Protection AgencyWorkshop To Inform Review of the Ozone National Ambient Air Quality Standards
Federal Register · Notice · Apr 24, 2024
Information About the Project Section 108(a) of the Clean Air Act (CAA) directs the Administrator to identify and to list certain air pollutants and then to issue “air quality criteria” for those pollutants … The Clean Air Scientific Advisory Committee (CASAC), part of EPA's Science Advisory Board (SAB) whose review and advisory functions are mandated by section 109(d)(2) of the Clean Air Act, is charged with
89 FR 31200Environmental Protection AgencyFederal Register · Notice · Apr 16, 2001
Air Act. … Air Act.
66 FR 19480Environmental Protection AgencyFederal Register · Rule · Oct 21, 2009
We are approving a local rule that regulates these emission sources under the Clean Air Act as amended in 1990 (CAA or the Act). … Public Comments and EPA Responses EPA's proposed action provided a 30-day public comment period. During this period, we received no comments. III.
74 FR 53888Environmental Protection AgencyFederal Register · Rule · Oct 7, 2002
We are finalizing disapproving under authority of the Clean Air Act as amended in 1990 (CAA or the Act). EFFECTIVE DATE: This rule is effective on November 6, 2002. … Public Comments and EPA Responses EPA's proposed action provided a 30-day public comment period.
67 FR 62383Environmental Protection AgencyApproval and Promulgation of State Implementation Plans: Oregon
Federal Register · Rule · Apr 14, 1997
Air Act (CAA), upon enactment of the Clean Air Act Amendments (CAAA) of 1990.1 See 56 FR 56694 (November 6, 1991) and 40 CFR 81.338. … References herein are to the Clean Air Act, as amended (``the Act''). The Clean Air Act is codified, as amended, in the U.S. Code at 42 U.S.C. 7401, et seq.
62 FR 18047Environmental Protection AgencyRespondents Brief — Engine Mfrs. Assn. v. South Coast Air Quality Management Dist.
Supreme Court brief · Respondents Brief · 2004
The Clean Air Act The Clean Air Act (“CAA” or “Act”), 42 U.S.C. §§ 7401- 7671q, creates a cooperative federal-state framework “in the struggle against air pollution.” General Motors Corp. v. … The period for comment [6] ended on April 26, 1999.
541 U.S. 246
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