Sulfur oxides

Air Plan Approval and Limited Approval-Limited Disapproval; California; Antelope Valley Air Quality Management District; Stationary Source Permits; New Source Review

The Environmental Protection Agency (EPA) is proposing approval, and a limited approval and limited disapproval of a revision to the Antelope Valley Air Quality Management District (AVAQMD or ``District'') portion of the California State Implementation Plan (SIP). The EPA is proposing to take action on nine rules submitted on August 3, 2021. We are proposing approval of three rules, and limited approval and limited disapproval of six rules.

Publication Date: 
Monday, January 30, 2023 - 4:00am

Reconsideration of the National Ambient Air Quality Standards for Particulate Matter

Based on the Environmental Protection Agency's (EPA's) reconsideration of the air quality criteria and the national ambient air quality standards (NAAQS) for particulate matter (PM), the EPA proposes to revise the primary annual PM<INF>2.5</INF> standard by lowering the level. The Agency proposes to retain the current primary 24-hour PM<INF>2.5</INF> standard and the primary 24-hour PM<INF>10</INF> standard.

Publication Date: 
Friday, January 27, 2023 - 4:00am

Air Plan Approval; Ohio; Sulfur Dioxide Regulations

The Environmental Protection Agency (EPA) is proposing to approve, under the Clean Air Act (CAA), revised sulfur dioxide (SO<INF>2</INF>) regulations submitted by Ohio on May 23, 2022. Ohio updated its regulations to correct facility information which has changed, remove requirements for shutdown facilities and units, update references, consolidate county-wide requirements, address style changes, and revise requirements for the Veolia Fort Hill plant in Miami, Ohio and DTE St. Bernard facility in Cincinnati, Ohio.

Publication Date: 
Thursday, January 26, 2023 - 4:00am

Control of Air Pollution From New Motor Vehicles: Heavy-Duty Engine and Vehicle Standards

The Environmental Protection Agency (EPA) is finalizing a program to further reduce air pollution, including ozone and particulate matter (PM), from heavy-duty engines and vehicles across the United States. The final program includes new emission standards that are significantly more stringent and that cover a wider range of heavy-duty engine operating conditions compared to today's standards; further, the final program requires these more stringent emissions standards to be met for a longer period of when these engines operate on the road.

Publication Date: 
Tuesday, January 24, 2023 - 4:00am

Air Plan Approval; IA; Electronic Submittal of Air Quality Information

The Environmental Protection Agency (EPA) is proposing to approve revisions to the Iowa State Implementation Plan (SIP) and the Operating Permit Program for the State of Iowa. The revisions require the electronic submittal of air emissions reporting, construction permit applications, and Title V permit applications, and make administrative updates. These revisions do not impact the stringency of the SIP or have an adverse effect on air quality. The EPA's proposed approval of this rule revision is being done in accordance with the requirements of the Clean Air Act (CAA).

Publication Date: 
Tuesday, January 24, 2023 - 4:00am

Air Plan Approval; AK; Adoption and Permitting Rule Updates

The Environmental Protection Agency (EPA) is proposing to approve revisions to the Alaska State Implementation Plan submitted on May 16, 2022, and August 11, 2022. The revisions proposed for approval update Alaska's adoption by reference date for Federal regulations relied upon for implementation of the air program, including permitting requirements and air pollution test methods.

Publication Date: 
Wednesday, January 18, 2023 - 4:00am

Air Plan Approval; Michigan; Part 4 Rule

The Environmental Protection Agency (EPA) is proposing to approve a revision to Michigan's State Implementation Plan (SIP). On August 17, 2022, The Michigan Department of Environment, Great Lakes, and Energy (EGLE) submitted changes to Michigan's Air Pollution Control Rules, Emissions Limitations and Prohibitions--Sulfur Bearing Compounds. The revision includes administrative changes to existing rules, updates material adopted by reference, and removes a definition.

Publication Date: 
Friday, January 13, 2023 - 4:00am

Approval of the Clean Air Act, Authority for Hazardous Air Pollutants: Asbestos Management and Control; State of New Hampshire Department of Environmental Services

The Environmental Protection Agency (EPA) is proposing to approve the amended ``Env-Sw 2100: Management and Control of Asbestos Sites Not Operated after July 9, 1981,'' effective September 1, 2018 (``amended Asbestos Disposal Site Rule'') in place of the National Emission Standard for Asbestos (``Asbestos NESHAP'') provisions for inactive waste disposal sites not operated after July 9, 1981 submitted by the State of New Hampshire.

Publication Date: 
Thursday, January 12, 2023 - 4:00am

Determination of Attainment by the Attainment Date, Clean Data Determination, and Approval of Base Year Emissions Inventory for the Imperial County, California Nonattainment Area for the 2012 Annual Fine Particulate Matter NAAQS

The Environmental Protection Agency (EPA) is determining that the Imperial County, California fine particulate matter (PM<INF>2.5</INF>) nonattainment area (``Imperial PM<INF>2.5</INF> nonattainment area'') attained the 2012 annual PM<INF>2.5</INF> national ambient air quality standards (NAAQS or ``standard'') by its December 31, 2021 ``Moderate'' area attainment date. This determination is based upon ambient air quality monitoring data from 2019 through 2021.

Publication Date: 
Wednesday, January 11, 2023 - 4:00am

Air Plan Partial Approval and Partial Disapproval; AK, Fairbanks North Star Borough; 2006 24-Hour PM2.5

The Environmental Protection Agency (EPA) is proposing to approve in part and disapprove in part the state implementation plan (SIP) revisions, submitted by the State of Alaska (Alaska or the State) to address Clean Air Act (CAA or Act) requirements for the 2006 24-hour fine particulate matter (PM<INF>2.5</INF>) national ambient air quality standards (NAAQS) in the Fairbanks North Star Borough PM<INF>2.5</INF> nonattainment area (Fairbanks PM<INF>2.5</INF> Nonattainment Area). Alaska made these submissions on December 13, 2019, and December 15, 2020.

Publication Date: 
Tuesday, January 10, 2023 - 4:00am

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