Documents

PM2.5 and PM10 Hot-Spot Analyses in Project-Level Transportation Conformity Determinations for the New PM2.5 and Existing PM10 National Ambient Air Quality Standards

Federal Register · Rule · Mar 10, 2006

Clean Air Act requirements. … the 1977 Clean Air Act conformity requirements.

Science Advisory Board Staff Office; Notification of an Upcoming Meeting of the Ecological Effects Subcommittee of the Advisory Council on Clean Air Compliance Analysis

Federal Register · Notice · Oct 14, 2004

Clean Air Act. … EPA has thus far issued one retrospective analysis of the Clean Air Act covering the 1970-1990 time period and one prospective analysis covering the 1990-2010 time period.

Approval and Promulgation of Air Quality Implementation Plans; Kentucky: Approval of American Greetings Corporation; Source-Specific State Implementation Plan Revision

Federal Register · Rule · May 9, 2001

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 Air Quality Implementation Plans; Federally Enforceable State Operating Permit Program; Allegheny County, Pennsylvania

Federal Register · Rule · Jun 26, 2003

EPA is approving this revision in accordance with the requirements of the Clean Air Act. … Please ensure that your comments are submitted within the specified comment period. Comments received after the close of the comment period will be marked “late.”

Standards for Air Curtain Incinerators That Only Burn Wood Wastes, Yard Wastes and Clean Lumber; Provision for Commercial and Industrial Solid Waste Incineration Units: Temporary Use Incinerators and Air Curtain Incinerators Used in Disaster Recovery

Federal Register · Proposed Rule · Mar 20, 2026

ACTION: Proposed rule; request for comment. SUMMARY: The U.S. Environmental Protection Agency (EPA) is proposing two separate and distinct actions under Clean Air Act (CAA) section 129. … Pursuant to Clean Air Act (CAA) section 129(g)(1)(C), the EPA has previously established in various CAA section 129 regulations opacity limitations and associated monitoring and recordkeeping requirements

Approval and Promulgation of Implementation Plans; Spokane, Washington: Second 10-Year PM10 Limited Maintenance Plan

Federal Register · Proposed Rule · Feb 26, 2016

Does the plan meet the Clean Air Act requirements for contingency provisions? … If finalized, the EPA's approval of this limited maintenance plan will satisfy the section 175A Clean Air Act requirements for the second 10-year period in the Spokane PM 10 area.

Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; Ohio

Federal Register · Rule · Feb 8, 1995

No other comments were received during the extended comment period. … -Canada Clean Air Quality Agreement.

Six Actions Published by the Environmental Protection Agency With Comment Periods That Closed January 27, 2025, and January 29, 2025; Reopening of Comment Periods

Federal Register · Notice · Jan 31, 2025

1/27/2025 EPA-HQ-OW-2023-0107. 89 FR 105045 Proposed Consent Decree, Clean Air Act Citizen Suit 12/26/2024 1/27/2025 EPA-HQ-OGC-2024-0601. 89 FR 105043 Agency Information Collection … This document reopens the public comment period for the notice “Proposed Consent Decree, Clean Air Act Citizen Suit” established in the Federal Register document of December 26, 2024 (89 FR 105045)

Approval and Promulgation of State Implementation Plans: Idaho

Federal Register · Rule · Aug 1, 2008

Air Act. … the IDEQ's 2008 SIP revision request meets the requirements of the Clean Air Act.

National Emission Standards for Hazardous Air Pollutants: Halogenated Solvent Cleaning

Federal Register · Rule · Dec 3, 1999

(See section 307(d)(7)(A) of the Clean Air Act.) … form for a period of 5 years

Approval and Promulgation of State Implementation Plans: Washington; Vancouver Air Quality Maintenance Area Second 10-Year Carbon Monoxide Maintenance Plan

Federal Register · Rule · Jun 27, 2008

In accordance with the requirements of the Federal Clean Air Act (the Act), EPA is approving Washington's revision because the State adequately demonstrates that the Vancouver Air Quality Maintenance Area … Transportation and General Conformity Transportation conformity is required by section 176(c) of the Clean Air Act.

Approval and Promulgation of Air Quality Implementation Plans; Texas; Control of Air Pollution From Motor Vehicles

Federal Register · Rule · Apr 9, 2010

The EPA is approving these revisions pursuant to section 110 of the Clean Air Act (CAA). … Thus, 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; Washington: Update to the Spokane Regional Clean Air Agency Solid Fuel Burning Device Standards

Federal Register · Proposed Rule · Aug 10, 2015

More recently, the Washington State Legislature revised the underlying statutory authority contained in Chapter 70.94 Revised Code of Washington (RCW) Washington Clean Air Act (Washington Clean Air … Air Act.

Other Solid Waste Incinerators; Air Curtain Incinerators Title V Permitting Provisions

Federal Register · Rule · Apr 17, 2024

SUMMARY: On August 31, 2020, in accordance with requirements under the Clean Air Act (CAA), the U.S. … for public comment or if the grounds for such objection arose after the period for public comment (but within the time specified for judicial review) and if such objection is of central relevance to the

National Emission Standards for Hazardous Air Pollutants for Source Categories: Aerospace Manufacturing and Rework

Federal Register · Uncategorized Document · Jun 6, 1994

A major source is defined in section 112(a) of the Clean Air Act as amended in 1990 (Act) as a source that emits, or has the potential to emit, considering controls, 10 tons per year (tpy) or more of any … The public is invited to comment on the proposed regulation during the public comment period.

Air Plan Approval; Connecticut; 2014 and 2017 Periodic Emissions Inventory for 2008 8-Hour Ozone NAAQS

Federal Register · Rule · Nov 18, 2025

The SIP revisions consist of the following: 2014 and 2017 calendar year periodic emissions inventories. This action is being taken under the Clean Air Act (CAA). … 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 of Texas Air Quality Plans; Clean Data Determination for the 2010 1-Hour Primary Sulfur Dioxide National Ambient Air Quality Standard; Anderson and Freestone Counties and Titus County Nonattainment Areas

Federal Register · Proposed Rule · Sep 25, 2020

Air Act. … Air Act Section 107(d)(3)(E).

Approval and Promulgation of Air Quality Implementation Plans; Maryland; Determination of Attainment of the 2008 8-Hour Ozone National Ambient Air Quality Standard for the Baltimore, Maryland Moderate Nonattainment Area

Federal Register · Rule · Jun 1, 2015

The designation status of the Baltimore Area will remain nonattainment for the 2008 8-hour ozone NAAQS until such time as EPA determines that the Area meets the Clean Air Act (CAA) requirements for redesignation … The commenter states EPA should decline to grant the clean data determination at this time due to “illusory air quality improvements.”

Approval and Promulgation of Implementation Plans; New York Prevention of Significant Deterioration of Air Quality and Nonattainment New Source Review

Federal Register · Proposed Rule · Jul 27, 2010

The 2002 NSR Reform Rules are part of EPA's implementation of parts C and D of title I of the Clean Air Act (CAA), 42 U.S.C. 7470-7515. … New York's NNSR SIP approval dates back to July 1, 1980, well before the 1990 Clean Air Act Amendments.

Approval and Promulgation of Air Quality Implementation Plans; Colorado; 1993 Periodic Carbon Monoxide Emission Inventories for Colorado

Federal Register · Rule · Jul 15, 1998

to the State Implementation Plan (SIP), as required by section 187(a)(5) of the Clean Air Act (CAA), as amended in 1990. … In addition, citizen enforcement under section 304 of the Clean Air Act is likewise unaffected by a state audit privilege or immunity law.