Documents

Air Quality Criteria for Particulate Matter (External Review Draft)

Federal Register · Notice · Oct 27, 1999

Sections 108 and 109 of the Clean Air Act require that the EPA carry out a periodic review and revision, where appropriate, of the criteria and the National Ambient Air Quality Standards (NAAQS) for the … Near the end of the comment period on the external review draft, Air Quality Criteria for Particulate Matter, the EPA will present the draft at a public meeting for review by the Clean Air Scientific Advisory

Release of Draft Integrated Science Assessment To Support the Review of the Primary National Ambient Air Quality Standards for Oxides of Nitrogen

Federal Register · Notice · Jul 17, 2026

Information About the Draft Document Two sections of the Clean Air Act (CAA) govern the establishment and revision of the NAAQS. … CAA section 109(d)(1) requires periodic review and, if appropriate, revision of existing air quality criteria.

Approval and Promulgation of Implementation Plans; Minnesota

Federal Register · Uncategorized Document · Sep 9, 1994

Air Act and also the nonattainment area plan requirements listed in subpart I of part D of subchapter I of the Clean Air Act. … (See section 307(b)(2) of the Clean Air Act.)

Final Rule To Implement the 1997 8-Hour Ozone National Ambient Air Quality Standard: Classification of Areas That Were Initially Classified Under Subpart 1; Revision of the Anti-Backsliding Provisions To Address 1-Hour Contingency Measure Requirements; Deletion of Obsolete 1-Hour Ozone Standard Provision

Federal Register · Rule · May 14, 2012

This final rule assigns Clean Air Act (CAA or Act) classifications and associated state planning and control requirements to selected ozone nonattainment areas. … Air Act.

Air Plan Approval; California; Mojave Desert Air Quality Management District

Federal Register · Rule · Jul 28, 2021

We are approving a local rule that regulates these emission sources under the Clean Air Act (CAA or the Act). DATES: This rule will be effective on August 27, 2021. … Public Comments The EPA's proposed action provided a 30-day public comment period. During this period, we received no comments. III. EPA Action No comments were submitted.

Air Plan Approval; Arizona; Maricopa County Air Quality Department; Volatile Organic Compounds and Particulate Matter; Solvent Cleaning; Architectural Coatings; Incinerators, Burn-Off Ovens, and Crematories

Federal Register · Rule · Dec 11, 2025

We are approving local rules that regulate these emission sources under the Clean Air Act (CAA or “Act”). DATES: This rule is effective January 12, 2026. … Public Comments and EPA Responses The EPA's proposed actions provided a 30-day public comment period.

Revisions to the California State Implementation Plan, Yolo-Solano Air Quality Management District

Federal Register · Rule · Oct 31, 2006

We are approving YSAQMD Rule 2.21 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.

Air Plan Approval; NC; NC BART Rule Revisions

Federal Register · Proposed Rule · Apr 27, 2022

EPA proposes to approve North Carolina's SIP revision because the changes are consistent with Clean Air Act (CAA or Act) requirements. … The EGUs relied on the Clean Air Interstate Rule (CAIR)  9 as a BART alternative for NO X and SO 2 and submitted BART-exemption modeling demonstrations for PM.

Approval and Promulgation of Implementation Plans; Georgia: Approval of Revisions to the Georgia State Implementation Plan: Transportation Conformity Interagency Memorandum of Agreement

Federal Register · Rule · Apr 7, 2000

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.

Approval and Promulgation of Implementation Plans: State of Alaska; Anchorage Carbon Monoxide Nonattainment Area; Designation of Areas for Air Quality Planning Purposes

Federal Register · Rule · Jun 23, 2004

Public Comments on the Proposed Action EPA provided a 30-day review and comment period and solicited comments on our proposal published in the May 10, 2004, Federal Register . … In reviewing SIP submissions, EPA's role is to approve state choices, provided that they meet the criteria of the Clean Air Act.

Air Plan Approval; California; Eastern Kern Air Pollution Control District; Portland Cement Kilns

Federal Register · Rule · Apr 16, 2026

We are approving a local rule that regulates these emission sources under the Clean Air Act (CAA or “Act”). DATES: This rule is effective May 18, 2026. … Public Comments and EPA Responses The EPA's proposed action provided a 30-day public comment period. During this period, we received no comments. III. EPA Action No comments were submitted.

Revisions to the California State Implementation Plan, South Coast Air Quality Management District

Federal Register · Rule · May 23, 2013

We are approving local rules that regulate these emission sources under the Clean Air Act (CAA or the Act). DATES: These rules will be effective on June 24, 2013. … Public Comments and EPA Responses EPA's proposed action provided a 30-day public comment period. During this period, we received no adverse comments on this proposal. III.

Approval and Promulgation of Air Quality Implementation Plans; Maryland; Amendments to VOC Regulations for Dry Cleaning and Stage I Vapor Recovery

Federal Register · Rule · Sep 2, 1998

The intended effect of this action is to approve these revisions to Maryland's SIP in accordance with the Clean Air Act (the Act). … All public comments received will then be addressed in a subsequent final rule based on the proposed rule. EPA will not institute a second comment period on this rule.

Approval and Promulgation of Air Quality Implementation Plans; Rhode Island; Determination of Attainment of the 1997 Ozone Standard for the Providence, RI Area

Federal Register · Proposed Rule · Jul 28, 2010

period. … In addition, in accordance with the Clean Air Act, EPA is proposing to determine, that this area has attained the 1997 ozone NAAQS as of June 15, 2010, its applicable attainment date.

Approval and Promulgation of Implementation Plans; State of California; Coachella Valley; Extreme Attainment Plan for 1997 8-Hour Ozone Standards

Federal Register · Proposed Rule · Apr 16, 2024

In 1979, under section 109 of the Clean Air Act (CAA), the EPA established primary and secondary NAAQS for ozone at 0.12 parts per million (ppm) averaged over a 1-hour period. 3 On July 18, 1997, … The public comment period ended with a board meeting on February 25, 2021.

Air Plan Approval; Indiana; Sulfur Dioxide

Federal Register · Proposed Rule · Jun 24, 2024

Statutory and Executive Order Reviews Under the Clean Air Act, the Administrator is required to approve a SIP submission that complies with the provisions of the Clean Air Act and applicable Federal regulations … of 1995 (15 U.S.C. 272 note) because application of those requirements would be inconsistent with the Clean Air Act.

Draft Integrated Science Assessment for Sulfur Oxides-Health Criteria

Federal Register · Notice · Nov 24, 2015

Information About the Document Section 108(a) of the Clean Air Act directs the Administrator to identify certain pollutants which, among other things, “cause or contribute to air pollution which may … The CASAC, an independent science advisory committee whose review and advisory functions are mandated by Section 109(d)(2) of the Clean Air Act, is charged (among other things) with independent scientific

Approval and Promulgation of Air Quality Implementation Plans; Wyoming; Regional Haze Federal Implementation Plan

Federal Register · Proposed Rule · Jun 8, 2026

Air Act CAMPD Clean Air Markets Program Data CBI Confidential Business Information CFR Code of Federal Regulations EGU Electric Generating Unit EPA U.S. … Clean Air Act Section 110(l) VI. Statutory and Executive Order Reviews I. What action is the EPA proposing?

Approval and Promulgation of Air Quality Implementation Plans; District of Columbia; GSA Central and West Heating Plants

Federal Register · Rule · Sep 30, 1999

Air Act (the Act). … The Clean Air Act forbids EPA to base its actions concerning SIPs on such grounds. Union Electric Co. v. U.S. EPA, 427 U.S. 246, 255-66 (1976); 42 U.S.C. 7410(a)(2). F.

Outer Continental Shelf Air Regulations Consistency Update for Alaska

Federal Register · Rule · Feb 8, 2007

”), as mandated by section 328(a)(1) of the Clean Air Act (“the Act”). … Public Comment and EPA Response EPA's proposed action provided a 30-day public comment period which closed on September 21, 2006. During this period, we received one comment on the proposed action.