Documents

Approval and Promulgation of Air Quality Implementation Plans; Pennsylvania; Attainment Plan for the Warren County, Pennsylvania Nonattainment Area for the 2010 Sulfur Dioxide Primary National Ambient Air Quality Standard

Federal Register · Rule · Oct 12, 2018

Air Act (CAA). … See General Preamble for the Implementation of Title I of the Clean Air Act Amendments of 1990 at 57 FR 13498 (April 16, 1992).

Approval and Promulgation of Air Quality Implementation Plans; State of Colorado; Revisions to the Transportation Conformity Consultation Process

Federal Register · Proposed Rule · Feb 1, 2018

These actions are being taken under section 110 of the Clean Air Act. DATES: Written comments must be received on or before March 5, 2018. … Make sure to submit your comments by the comment period deadline identified. II.

Approval and Promulgation of Air Quality Implementation Plans; Maine; Nitrogen Oxides Exemption Request

Federal Register · Rule · Jul 29, 2014

SUMMARY: EPA is approving a request from Maine for an exemption from the requirements for the control of nitrogen oxides (NO X ) emissions contained in section 182(f) of the Clean Air Act (CAA or … Air Act.

Air Plan Approval; Guam; Base Year Emissions Inventory for the 2010 1-Hour Sulfur Dioxide National Ambient Air Quality Standard for the Piti-Cabras Nonattainment Area

Federal Register · Rule · Jul 16, 2025

SUMMARY: The Environmental Protection Agency (EPA) is taking direct final action to approve a revision to Guam's State Implementation Plan (SIP) under section 110(k)(3) of the Clean Air Act (CAA or … of 1995 (15 U.S.C. 272 note) because application of those requirements would be inconsistent with the Clean Air Act.

Approval of Arizona Air Plan Revisions, Arizona Department of Environmental Quality and Pinal County Air Quality Control District

Federal Register · Proposed Rule · Jan 9, 2017

We are proposing to approve local rules to regulate these emission sources under the Clean Air Act (CAA or the Act). … Thus, in reviewing SIP submissions, EPA's role is to approve state choices, provided that they meet the criteria of the Clean Air Act.

The Safer Affordable Fuel-Efficient (SAFE) Vehicles Rule Part One: One National Program

Federal Register · Rule · Sep 27, 2019

NHTSA agrees with South Coast, which suggested in its comments that EPCA does not outweigh the Clean Air Act. 160 Likewise, the Clean Air Act does not outweigh EPCA. … The Clean Air Act requires EPA to waive Clean Air Act preemption under a specific section of that statute unless it makes certain findings.

Release of a Draft Document Related to the Review of the National Ambient Air Quality Standards for Particulate Matter

Federal Register · Notice · Sep 11, 2019

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

Opposition — Indianapolis Power & Light Co. v. United States Environmental Protection Agency

Supreme Court brief · Opposition · 1980

“The Clean Air Act (formerly 42 U.S.C. 1857 ef seg.) is now codified as 42 U.S.C. (Supp. 1) 7401 e7 seg. See Clean Air Act Amendments of 1977, Pub. L. No. 95-95, 91 Stat. 685. In this brief. … citations will refer to the current codification of the Clean Air Act. as amended. was below the applicable standards and to designate those areas as “nonattainment areas.”

Approval and Promulgation of Implementation Plans; Illinois

Federal Register · Rule · Nov 8, 1995

Please be aware that USEPA will institute another comment period on this action only if warranted by significant revisions to the rulemaking based on any comments received in response to today's action … The Clean Air Act forbids USEPA to base its actions concerning SIPs on such grounds. Union Electric Co. v. USEPA., 427 U.S. 246, 256-66 (S.Ct. 1976); 42 U.S.C. 7410(a)(2).

Air Plan Approval; Wisconsin; Kenosha County 2008 8-Hour Ozone Nonattainment Area Reasonable Further Progress Plan

Federal Register · Rule · Aug 23, 2016

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 … Thus, 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; Minnesota; Flint Hills Sulfur Dioxide (SO2) Revision

Federal Register · Proposed Rule · Apr 26, 2018

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 … Thus, in reviewing SIP submissions, EPA's role is to approve state choices, provided that they meet the criteria of the Clean Air Act.

Petition for Writ of Certiorari — Imperial County Air Pollution Control District v. Sierra Club

Supreme Court brief · Petition for Writ of Certiorari · 2004

In 1987, pursuant to the Clean Air Act, 42 U.S.C. 88 7401-7671q (“CAA” or “Act”), the U.S. … References herein are to the Clean Air Act, as amended, 42 U.S.C. 7401, et seq.

Approval and Promulgation of Air Quality Implementation Plans; Maine; RACT for VOC Sources

Federal Register · Rule · Apr 18, 2000

This action is being taken in accordance with the Clean Air Act (CAA or Act). … Air Act.

Approval and Promulgation of State Plan for Designated Facilities and Pollutants: Louisiana; Clean Air Mercury Rule (CAMR)

Federal Register · Rule · Aug 17, 2007

We will not institute a second comment period on this action. Any parties interested in commenting must do so at this time. … In reviewing State plans, EPA's role is to approve State choices, provided that they meet the criteria of the Clean Air Act.

California State Nonroad Engine Pollution Control Standards; Portable Diesel-Fueled Engines Air Toxics Control Measure; Request for Confirmation That Amendments Are Within the Scope of Previous Authorization; Opportunity for Public Hearing and Comment

Federal Register · Notice · Nov 21, 2014

By letter dated September 15, 2014, CARB asked that EPA authorize these amendments pursuant to the Clean Air Act (CAA or Act). … Sections 209(b) and 209(e) of the Clean Air Act limit EPA's authority to deny California requests for waivers and authorizations to the three criteria listed therein.

Review of the Primary National Ambient Air Quality Standards for Sulfur Oxides

Federal Register · Rule · Mar 18, 2019

Reviews of the NAAQS are required by the Clean Air Act (CAA) on a periodic basis. The last review of the primary SO 2 NAAQS was completed in 2010 (75 FR 35520, June 22, 2010). … Legislative Requirements Two sections of the Clean Air Act (CAA or the Act) govern the establishment and revision of the NAAQS.

Second Draft Risk and Exposure Assessment Report for Sulfur Dioxide (SO2)

Federal Register · Notice · Apr 23, 2009

• Make sure to submit your comments by the comment period deadline identified. … SUPPLEMENTARY INFORMATION: Under section 108(a) of the Clean Air Act (CAA), the Administrator identifies and lists certain pollutants which “cause or contribute to air pollution which may reasonably be

Adequacy Status of the Motor Vehicle Emissions Budget in the Fairbanks North Star Borough, Alaska Submitted 2006 24-Hour PM2.5 NAAQS Serious Area and 189(d) Plan

Federal Register · Rule · May 8, 2025

Transportation conformity is required by Clean Air Act section 176(c), 42 U.S.C. 7506(c). … The public comment period on the adequacy process closed February 7, 2025. We received three comments during that public comment period related to adequacy of the motor vehicle emissions budgets.

Approval and Promulgation of Air Quality Implementation Plans; State of New Mexico; Infrastructure Requirements for the 2008 Lead National Ambient Air Quality Standard and Repeal of Cement Kilns Rule

Federal Register · Rule · Jun 11, 2015

The public comment period for the December 11, 2014, proposal (79 FR 73512) expired on January 12, 2015, and we did not receive any comments concerning our proposal. … 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

Approval and Promulgation of Implementation Plans; Washington: Update to the Spokane Regional Clean Air Agency Solid Fuel Burning Device Standards

Federal Register · Rule · Sep 28, 2015

We are approving these changes because they meet the requirements of the Clean Air Act and strengthen the Washington SIP. DATES: This final rule is effective October 28, 2015. … The public comment period for this proposed rule ended on September 9, 2015. The EPA received no comments on the proposal. II.