Rule 25 Sep 2025 air quality, epa, air pollution control, intergovernmental relations, nitrogen dioxide, particulate matter, reporting and recordkeeping requirements, environmental protection, ozone, business operations, lead, volatile organic compounds, carbon monoxide, west virginia, incorporation by reference, compliance, sulfur oxides, environmental regulation

🌬️Approval of West Virginia Air Quality Standards by EPA

The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision submitted by the State of West Virginia. This revision updates West Virginia's incorporation by reference (IBR) of EPA's national ambient air quality standards (NAAQS) and the associated monitoring reference and equivalent methods. EPA is approving these revisions to the West Virginia SIP in accordance with the requirements of the Clean Air Act (CAA).

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Rule 18 Sep 2025 permits, environmental regulation, air quality, business compliance, intergovernmental relations, epa, reporting and recordkeeping requirements, environmental protection, incorporation by reference, guam, air pollution control, administrative practice and procedure

🌬️EPA Approves Guam Air Plan

The Environmental Protection Agency (EPA) is finalizing an approval of a revision to the Guam state implementation plan (SIP). This revision governs the Guam Environmental Protection Agency's (GEPA) issuance of permits for stationary sources and focuses on the preconstruction review and permitting of major sources and major modifications under the Clean Air Act (CAA or "the Act").

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Rule 18 Sep 2025 business compliance, environmental regulation, air quality, intergovernmental relations, reporting and recordkeeping requirements, sulfur dioxide, environmental protection, incorporation by reference, guam, sulfur oxides, air pollution control

🌬️Final Rule on Clean Data Determination for Sulfur Dioxide in Guam

The Environmental Protection Agency (EPA) is taking final action on a clean data determination (CDD) for the Piti-Cabras, Guam sulfur dioxide (SO<INF>2</INF>) nonattainment area ("Piti-Cabras area") based on our determination that the area has attained the 2010 1-hour SO<INF>2</INF> National Ambient Air Quality Standard (NAAQS, "standard," or "2010 SO<INF>2</INF> NAAQS"). In designated nonattainment areas where air quality data demonstrate that a NAAQS has been attained, the EPA interprets certain requirements of the Clean Air Act (CAA) as no longer applicable for so long as air quality continues to meet the standard. Under this Clean Data Policy, the EPA may issue a determination of attainment, known as a CDD, that a nonattainment area is attaining the relevant NAAQS. This CDD suspends the obligation to submit certain attainment planning requirements for the Piti-Cabras area for as long as the area continues to attain the 2010 SO<INF>2</INF> NAAQS or until the area is formally redesignated. This CDD does not constitute redesignation of the area to attainment. This action is being taken under the CAA.

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Proposed Rule 12 Sep 2025 epa, environmental regulation, volatile organic compounds, nitrogen oxides, california, air pollution control, environmental protection, ozone, business compliance, reporting and recordkeeping requirements, air quality, incorporation by reference, intergovernmental relations

🌬️EPA Proposes Air Quality Rule for San Joaquin Valley Businesses

The Environmental Protection Agency (EPA) is proposing to approve a revision to the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD or "District") portion of the California State Implementation Plan (SIP) concerning a rule submitted to address section 185 of the Clean Air Act (CAA or the "Act") with respect to the revoked 1997 8-hour ozone National Ambient Air Quality Standards (NAAQS or "standard"). We are proposing action on this local rule that was submitted as an equivalent alternative to a statutory section 185 program. We are taking comments on this proposal and plan to follow with a final action.

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Rule 11 Sep 2025 carbon monoxide, ozone, incorporation by reference, environmental protection, nitrogen dioxide, epa, particulate matter, environmental regulation, reporting and recordkeeping requirements, greenhouse gases, intergovernmental relations, compliance, sulfur oxides, lead, wyoming, air pollution control, volatile organic compounds, air quality

🌬️Wyoming Air Quality Standards Revised by EPA

The Environmental Protection Agency (EPA) is taking direct final action to approve revisions to the Wyoming State Implementation Plan (SIP) submitted by the Wyoming Department of Environmental Quality (WDEQ) on December 16, 2024. WDEQ requested the EPA approve the revised rules for Chapters 2, 3, 4, 8, and 14 in the Wyoming Air Quality Standards and Regulations (WAQSR). The revised rules include non- substantive updates to rule language that ensure consistent grammar, formatting, and written clarity as well as updated references to the Code of Federal Regulations (CFR). The EPA is taking this action pursuant to the Clean Air Act (CAA).

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Rule 11 Sep 2025 ozone, incorporation by reference, environmental protection, epa, emissions, reporting and recordkeeping requirements, environmental regulations, compliance, new jersey, nitrogen oxides, air pollution control, volatile organic compounds, air quality

🌬️New Jersey EPA Approval of NOx SIP Requirements and Business Impact

The Environmental Protection Agency (EPA) is approving a revision in the New Jersey State Implementation Plan (SIP) that includes a signed Memorandum of Agreement (MOA) developed between the EPA and the New Jersey Department of Environmental Protection (NJDEP). The MOA demonstrates how the State will maintain compliance with its nitrogen oxides (NO<INF>X</INF>) emission control obligations for the types of large non-electricity generating units (non-EGUs) that were previously regulated under the New Jersey NO<INF>X</INF> Budget Program. This action is being taken in accordance with the requirements of the Clean Air Act (CAA).

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Proposed Rule 11 Sep 2025 ozone, voc emissions, incorporation by reference, environmental protection, architectural coatings, environmental regulation, reporting and recordkeeping requirements, intergovernmental relations, nitrogen oxides, air pollution control, volatile organic compounds, air quality, arizona

🎨Proposed Rule on VOC Emissions for Architectural Coatings in Arizona

The Environmental Protection Agency (EPA) is proposing to approve revisions to the Maricopa County Air Quality Department (MCAQD or "County") portion of the Arizona State Implementation Plan (SIP). These revisions concern emissions of volatile organic compounds (VOC) from architectural coatings. Architectural coatings include house paints, stains, industrial maintenance coatings, traffic coatings, and other similar products. We are proposing to approve local rules to regulate these emission sources under the Clean Air Act (CAA or "Act"). The revisions would update the Arizona SIP by replacing an outdated rule version with the current version in effect and would lower VOC emissions limits for some architectural coatings if contingency measures are triggered in the future. We are taking comments on this proposal and plan to follow with a final action.

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Proposed Rule 11 Sep 2025 particulate matter, incorporation by reference, environmental protection, reporting and recordkeeping requirements, regulations, intergovernmental relations, business compliance, air pollution control, air quality, arizona

🌫️EPA Proposes Approval of Arizona's PM10 Air Quality Plan

The Environmental Protection Agency (EPA) is proposing to fully approve the Arizona Department of Environmental Quality's (ADEQ or "State") State Implementation Plan (SIP) submittal under the Clean Air Act (CAA or "the Act") that addresses Nonattainment New Source Review (NNSR) permitting of precursor emissions for the 1987 National Ambient Air Quality Standards (NAAQS or "standard") for particulate matter with a diameter of 10 micrometers or less (PM<INF>10</INF>) in the West Pinal PM<INF>10</INF> nonattainment area. We are taking comments on this proposal and plan to follow with a final action.

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Proposed Rule 11 Sep 2025 ozone, particulate matter, incorporation by reference, environmental protection, nitrogen dioxide, epa, california, reporting and recordkeeping requirements, environmental regulations, intergovernmental relations, compliance, air pollution control, volatile organic compounds, air quality, mojave desert

🌬️Proposed Revisions to Mojave Desert Air Quality Regulations

The Environmental Protection Agency (EPA) is proposing to approve revisions to the Mojave Desert Air Quality Management District (MDAQMD or "District") portion of the California State Implementation Plan (SIP). These revisions concern amended or rescinded prohibitory and administrative rules that regulate air pollutants under the Clean Air Act (CAA or "Act"). We are proposing to rescind numerous requirements from the District's portion of the California SIP because the requirements can be replaced by more current requirements. We are taking comments on this proposal and plan to follow with a final action.

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Proposed Rule 11 Sep 2025 epa, clean air act, environmental regulation, wyoming, business compliance, air quality

🌬️Proposed Approval of Wyoming Air Quality Standards by EPA

The Environmental Protection Agency (EPA) is proposing to approve revisions to the Wyoming State Implementation Plan (SIP) submitted by the Wyoming Department of Environmental Quality (WDEQ) on December 16, 2024. WDEQ requested EPA approve the revisions for Chapters 2, 3, 4, 8, and 14 in the Wyoming Air Quality Standards and Regulations (WAQSR) The revised rules include non-substantive updates to rule language that ensure consistent grammar, formatting, and written clarity as well as updated references to the Code of Federal Regulations. These revisions do not change the intent or scope of each rule. The EPA is proposing approval of these SIP revisions because we have determined that they are in accordance with the requirements for SIP provisions under the Clean Air Act (CAA or the Act). The proposed approval of WAQSR Chapter 2, section 4 of the December 16, 2024 submittal supersedes the revisions to this section contained in WDEQ's February 10, 2014 SIP submittal that the EPA had not previously acted on. In the "Rules and Regulations" section of this Federal Register, we are approving these SIP revisions as a direct final rule without a prior proposed rule. If we receive no adverse comment, we will not take further action on this proposed rule.

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