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Comment Close Date
The Environmental Protection Agency (EPA) is proposing to approve a State Implementation Plan (SIP) revision submitted by the Wisconsin Department of Natural Resources (WDNR or Wisconsin) on December 13, 2019. Wisconsin requests that EPA approve rules related to control of volatile organic compound (VOC) emissions from offset lithographic...
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
The Environmental Protection Agency (EPA) is proposing to determine that the Anderson and Freestone Counties and the Titus County nonattainment areas, in Texas, have attained the 2010 1-hour primary Sulfur Dioxide (SO<INF>2</INF>) National Ambient Air Quality Standard (NAAQS) per the EPA's Clean Data Policy. The primary sources of SO<INF>2</INF>...
Air Quality Implementation Plan; California; Northern Sierra Air Quality Management District; Stationary Source Permits
The Environmental Protection Agency (EPA) is proposing to approve a revision to the Northern Sierra Air Quality Management District (NSAQMD or ``District'') portion of the California State Implementation Plan (SIP). In this action, we are proposing to approve a rule submitted by the NSAQMD that governs the issuance of permits for stationary...
The Environmental Protection Agency (EPA) is proposing to approve revisions to the Jefferson County portion of the Kentucky State Implementation Plan (SIP), submitted by the Commonwealth of Kentucky, through the Energy and Environment Cabinet (Cabinet) on September 5, 2019. The revisions were submitted by the Cabinet on behalf of the Louisville...
Air Plan Partial Approval and Partial Disapproval; Arizona; Maricopa County Air Quality Management Department; Reasonably Available Control Technology State Implementation Plan
The Environmental Protection Agency (EPA) is proposing to partially approve and partially disapprove a revision to the Maricopa County Air Quality Department (MCAQD or County) portion of the Arizona State Implementation Plan (SIP) concerning the MCAQD's demonstration regarding reasonably available control technology (RACT) requirements and...
Air Plan Approval; Illinois; Removal of Variance for Illinois Power Holdings and AmerenEnergy Medina Valley Cogen Facilities
The Environmental Protection Agency (EPA) is proposing to approve a revision to the Illinois State Implementation Plan (SIP) submitted on January 23, 2020, by the Illinois Environmental Protection Agency (IEPA). The revision removes the variance for coal-fired electrical generating units (EGUs) owned by the Illinois Power Holdings, LLC (IPH) and...
The Environmental Protection Agency (EPA) is proposing to partially approve and partially disapprove a revision to the Michigan State Implementation Plan (SIP) for attaining the 2010 1-hour primary sulfur dioxide (SO<INF>2</INF>) national ambient air quality standard (NAAQS or ``standard'') for the Detroit SO<INF>2</INF> nonattainment area...
The United States Environmental Protection Agency (EPA or Agency) proposes to amend the federal regulations to withdraw human health criteria (HHC) for toxic pollutants applicable to waters in the State of Maine. EPA proposes to take this action because Maine adopted, and EPA approved, HHC that the Agency determined are protective of the...
National Emission Standards for Hazardous Air Pollutants for Major Sources: Industrial, Commercial, and Institutional Boilers and Process Heaters; Amendments
On January 31, 2013, the U.S. Environmental Protection Agency (EPA) finalized amendments to the national emission standards (NESHAP) for the control of hazardous air pollutants (HAP) at major sources from new and existing industrial, commercial, and institutional (ICI) boilers and process heaters. Subsequently, the United States Court of Appeals...
Control of Air Pollution From Airplanes and Airplane Engines: GHG Emission Standards and Test Procedures
The Environmental Protection Agency (EPA) is proposing greenhouse gas (GHG) emission standards applicable to certain classes of engines used by certain civil subsonic jet airplanes with a maximum takeoff mass greater than 5,700 kilograms and by certain civil larger subsonic propeller-driven airplanes with turboprop engines having a maximum...