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Air Plan Revisions; California; Yolo-Solano Air Quality Management District
The Environmental Protection Agency (EPA) is taking final action to approve state implementation plan (SIP) revisions to the Yolo-Solano Air Quality Management District (YSAQMD) portion of the California SIP. These revisions concern emissions of oxides of nitrogen (NO<INF>X</INF>) from biomass boilers, and address reasonably available control...
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Second 10-Year Maintenance Plan for the 24-Hour PM10 Standards; Sacramento County Planning Area, California
The Environmental Protection Agency (EPA) is taking final action under the Clean Air Act (CAA or ``Act'') to approve the ``Second 10-Year PM<INF>10</INF> Maintenance Plan for Sacramento County'' (``Second 10-Year Maintenance Plan'' or ``Plan'') as a revision to the state implementation plan (SIP) for the State of California (``State''). The...
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Cloquintocet-mexyl in Pesticide Formulations; Tolerances for Residues
This regulation amends the tolerance expression for residues of the safener cloquintocet-mexyl (acetic acid, [(5-chloro-8- quinolinyl)oxy]-, 1-methylhexyl ester) (CAS Reg. No. 99607-70-2) and its acid metabolite (5-chloro-8-quinlinoxyacetic acid) by removing the active ingredients listed in the tolerance expression so that the safener can be...
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South Carolina; Approval and Promulgation of State Plans for Designated Facilities and Pollutants; Control of Emissions From Existing Municipal Solid Waste Landfills
The Environmental Protection Agency (EPA) is approving a Clean Air Act (CAA) plan submitted by the South Carolina Department of Health and Environmental Control (SCDHEC) on January 19, 2022. This State plan was submitted to fulfill the requirements of the CAA and is responsive to EPA's promulgation of Emissions Guidelines (EG) and Compliance...
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Air Plan Approval; New Hampshire; Single Source Order for PAK Solutions
The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the State of New Hampshire. This revision establishes reasonable available control technology (RACT) requirements for PAK Solutions, LLC, located in Lancaster, New Hampshire. This action is being taken under the Clean Air Act.
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Accidental Release Prevention Requirements: Risk Management Programs Under the Clean Air Act; Safer Communities by Chemical Accident Prevention
The Environmental Protection Agency (EPA) is amending its Risk Management Program (RMP) regulations as a result of Agency review. The revisions include several changes and amplifications to the accident prevention program requirements, enhancements to the emergency preparedness requirements, improvements to the public availability of chemical...
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Determination To Defer Sanctions; California; South Coast Air Quality Management District
The Environmental Protection Agency (EPA) is making an interim final determination that the California Air Resources Board (CARB) has submitted a revised rule on behalf of the South Coast Air Quality Management District (SCAQMD) that corrects deficiencies in its Clean Air Act (CAA or Act) state implementation plan (SIP) provisions concerning...
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Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review
The Environmental Protection Agency (EPA) is finalizing multiple actions to reduce air pollution emissions from the Crude Oil and Natural Gas source category. First, the EPA is finalizing revisions to the new source performance standards (NSPS) regulating greenhouse gases (GHGs) and volatile organic compounds (VOCs) emissions for the Crude Oil...
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National Priorities List
The Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (``CERCLA'' or ``the Act''), as amended, requires that the National Oil and Hazardous Substances Pollution Contingency Plan (``NCP'') include a list of national priorities among the known releases or threatened releases of hazardous substances, pollutants or...
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Air Plan Approval; KY; 2015 8-Hour Ozone Nonattainment New Source Review Permit Program Requirements and Rule Revision for Jefferson County
The Environmental Protection Agency (EPA) is approving a revision to the Jefferson County portion of the Kentucky State Implementation Plan (SIP) submitted by the Commonwealth of Kentucky through the Kentucky Energy and Environment Cabinet (Cabinet) on June 13, 2022. The changes were submitted by the Cabinet on behalf of the Louisville Metro Air...
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Air Plan Revisions; California; Sacramento Air Quality Management District
The Environmental Protection Agency (EPA) is taking final action to approve a revision to the Sacramento Metropolitan Air Quality Management District (SMAQMD) portion of the California State Implementation Plan (SIP). This revision concerns a rule submitted to address section 185 of the Clean Air Act (CAA or the Act).
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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 is revising the primary annual PM<INF>2.5</INF> standard by lowering the level from 12.0 [micro]g/m\3\ to 9.0 [micro]g/m\3\. The Agency is retaining the...
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National Emission Standards for Hazardous Air Pollutants: Taconite Iron Ore Processing
The U.S. Environmental Protection Agency (EPA) is finalizing amendments to the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Taconite Iron Ore Processing. Specifically, the EPA is finalizing maximum achievable control technology (MACT) standards for mercury (Hg) and establishing revised emission standards for hydrogen...
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Approval and Promulgation of State Air Quality Plans for Designated Facilities and Pollutants; Arkansas; Negative Declaration for Existing Sulfuric Acid Plants; Plan Revision for Existing Kraft Pulp Mills
Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is approving the CAA section 111(d) State plan revision submitted by the State of Arkansas for existing kraft pulp mills subject to the Kraft Pulp Mills Emission Guidelines (EG). The Arkansas section 111(d) plan revision for kraft pulp mills...
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Air Plan Approval; Oklahoma; Updates to the State Implementation Plan Incorporation by Reference Provisions
Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is approving revisions to the Oklahoma State Implementation Plan (SIP) submitted by the State of Oklahoma designee on December 17, 2021, and January 20, 2023. This action addresses the submittal of revisions to the Oklahoma SIP to update the...
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1,4-Bis[[3-[2-(2-hydroxyethoxy)ethoxy]propyl]amino]-9,10-anthracenedione in Pesticide Formulations; Tolerance Exemption
This regulation establishes an exemption from the requirement of a tolerance for residues of 1,4-bis[[3-[2-(2- hydroxyethoxy)ethoxy]propyl]amino]-9,10-anthracenedione, when used as an inert ingredient (colorant/dye) on growing crops and raw agricultural commodities pre- and post-harvest in/on animals, limited to a maximum concentration of 0.5%...
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Various Fragrance Components in Pesticide Formulations; Tolerance Exemption
This regulation establishes exemptions from the requirement of a tolerance for residues of various fragrance components listed in Unit II of this document when they are used as inert ingredients in antimicrobial formulations applied to food-contact surfaces in public eating places, dairy-processing equipment, and food-processing equipment and...
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Air Quality Implementation Plans; California; San Diego County; 2008 and 2015 8-Hour Ozone Nonattainment Area Requirements
The Environmental Protection Agency (EPA) is taking final action to approve portions of two State implementation plan (SIP) revisions submitted by the State of California to meet Clean Air Act (CAA) requirements for the 2008 8-hour ozone national ambient air quality standards (NAAQS or ``standards'') and the 2015 8-hour ozone NAAQS in the San...
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Request From States for Removal of Gasoline Volatility Waiver
Pursuant to provisions specified by the Clean Air Act (CAA), the Governors of Illinois, Iowa, Minnesota, Missouri, Nebraska, Ohio, South Dakota, and Wisconsin submitted petitions requesting that EPA remove the 1-pound per square inch (psi) Reid vapor pressure (RVP) waiver for summer gasoline-ethanol blended fuels containing 10 percent ethanol...
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Triclopyr; Pesticide Tolerances
This regulation establishes a tolerance for residues of triclopyr, including its metabolites and degradates, in or on sugarcane, cane. The Interregional Project Number 4 (IR-4) requested this tolerance under the Federal Food, Drug, and Cosmetic Act (FFDCA).