🌫️EPA Approves South Dakota’s Regional Haze State Implementation Plan
The Environmental Protection Agency (EPA) is approving a regional haze state implementation plan (SIP) revision submitted by the State of South Dakota on July 29, 2022 (South Dakota's 2022 SIP submission), as satisfying applicable requirements under the Clean Air Act (CAA) and the EPA's Regional Haze Rule (RHR) for the program's second implementation period. The EPA is taking this action pursuant to CAA.
Learn More🌫️Proposed EPA Consent Decree's Impact on Air Quality Standards
In accordance with the Clean Air Act, as amended (CAA or the Act), notice is given of a proposed consent decree in Center for Biological Diversity and Center for Environmental Health v. Lee Zeldin, No. 4:25-cv-03143-HSG (N.D. Cal). On April 8, 2025, Plaintiffs the Center for Biological Diversity and the Center for Environmental Health filed a complaint in the United States District Court for the Northern District of California, alleging that the Environmental Protection Agency (EPA) failed to perform its mandatory duties in accordance with the Act to determine whether the Mariposa County, California, and Phoenix-Mesa, Arizona non-attainment areas attained the 2015 ozone national ambient air quality standards (NAAQS) by the Moderate attainment date. The EPA is providing notice of this proposed consent decree, which would resolve all claims in the case by establishing deadlines for the EPA to take final action as specified in the decree.
Learn More🌫️Proposed Amendments to Connecticut's Air Pollution Regulations by EPA
The Environmental Protection Agency (EPA) is proposing to approve regulatory amendments that revise two previous program approvals from the Connecticut Department of Energy and Environmental Protection (CT DEEP). The revisions include amendments to the Regulations of Connecticut State Agencies (RCSA) that revise the Connecticut State Operating Permit Program and amendments to RCSA that revise limitations on potential to emit Clean Air Act (CAA) pollutants. A significant aspect of this action involves revising the definition of "hazardous air pollutant" in the RCSA in response to EPA adding 1- bromopropane to the list of hazardous air pollutants. This action is being taken under the Clean Air Act.
Learn More🌬️EPA's Proposed Consent Decree for Kentucky Air Quality Compliance
In accordance with the Clean Air Act, as amended (CAA or the Act), notice is given of a proposed consent decree in Commonwealth of Kentucky v. U.S. Environmental Protection Agency, No. 3:24-CV-600-CHB (W.D. Ky.). On October 16, 2024, Plaintiffs the Commonwealth of Kentucky, Energy and Environment Cabinet (KY EEC); Rebecca Goodman, Secretary of the KY EEC; and the Louisville Metro Air Pollution Control District filed a complaint in the United States District Court for the Western District of Kentucky, Louisville Division. Plaintiffs allege that the Environmental Protection Agency (EPA or the Agency) failed to perform certain non-discretionary duties in accordance with the Act to timely approve or deny a request to redesignate the Kentucky portion of the Louisville, Kentucky-Indiana, 2015 8-hour ozone nonattainment area (the Area) to attainment for the 2015 8-hour ozone National Ambient Air Quality Standards (NAAQS or standards). The proposed consent decree would establish deadlines for EPA to approve or deny the request to redesignate.
Learn More🌬️EPA Denies Petition Against Tennessee Valley Authority Operating Permit
The Environmental Protection Agency (EPA) Administrator signed an order dated July 10, 2025, denying a petition dated December 20, 2024, from Kentucky Resources Council, National Parks Conservation Association, Sierra Club, and Kentucky Conservation Committee (Petitioners). The petition requested that EPA object to a Clean Air Act (CAA) title V operating permit proposed by the Kentucky Division for Air Quality (KDAQ) to Tennessee Valley Authority, Shawnee Fossil Plant (Shawnee Plant) for its facility located in McCracken County, Kentucky.
Learn More🌫️Tennessee's Regional Haze Plan
The Environmental Protection Agency (EPA) is proposing to approve a regional haze State Implementation Plan (SIP) revision submitted by the Tennessee Department of Environmental Conservation (TDEC), dated February 23, 2022, as satisfying the applicable requirements under the Clean Air Act (CAA or Act) and EPA's Regional Haze Rule (RHR) for the program's second planning period. Tennessee's SIP submission addresses the requirement that states must periodically revise their long-term strategies for making reasonable progress toward the national goal of preventing any future, and remedying any existing, anthropogenic impairment of visibility, including regional haze, in mandatory Class I Federal areas. The SIP submission also addresses other applicable requirements for the second planning period of the regional haze program. EPA is proposing this action pursuant to sections 110 and 169A of the Act.
Learn More🏭EPA Notice on Clean Air Act Permit for Valero Energy Partners
The Environmental Protection Agency (EPA) Administrator signed an Order dated July 18, 2025, granting in part and denying in part a petition dated December 3, 2024, from Texas Environmental Justice Advocacy Services, Caring for Pasadena Communities, and Lone Star Chapter of the Sierra Club (the Petitioners). The petition requested that the EPA object to a Clean Air Act (CAA) title V operating permit issued by the Texas Commission on Environmental Quality (TCEQ) to Valero Energy Partners, L.P., for its Valero Houston Refinery Tank Farm located in Harris County, Texas.
Learn More🌍EPA Issues Order on Kinder Morgan Altamont Operating Permit
The Environmental Protection Agency (EPA) Administrator signed an order dated May 30, 2025, granting a petition dated October 15, 2024, from the Center for Biological Diversity. The petition requested that the EPA object to a Clean Air Act (CAA) operating permit issued by the Utah Department of Environmental Quality (UDEQ) to Kinder Morgan Altamont, LLC for its compressor station located in Duchesne, County.
Learn More🌬️EPA Denies Petition on Young Gas Storage Company Operating Permit
The Environmental Protection Agency (EPA) Administrator signed an order dated May 30, 2025, denying a petition dated October 15, 2024, from Center for Biological Diversity. The petition requested that the EPA object to a Clean Air Act (CAA) operating permit issued by the Colorado Department of Public Health and Environment's Air Pollution Control Division (Division) authorizing Young Gas Storage Company, Ltd. (Young Gas Storage) to operate the Young Compressor Station in Morgan County, Colorado.
Learn More🌫️Proposed Rule for South Carolina's Regional Haze Plan
The Environmental Protection Agency (EPA) is proposing to approve a regional haze State Implementation Plan (SIP) revision submitted by the South Carolina Department of Health and Environmental Control (DHEC) dated March 3, 2022, as satisfying the applicable requirements under the Clean Air Act (CAA or Act) and EPA's Regional Haze Rule (RHR) for the program's second planning period. South Carolina's SIP submission addresses the requirement that states must periodically revise their long-term strategies for making reasonable progress toward the national goal of preventing any future, and remedying any existing, anthropogenic impairment of visibility, including regional haze, in mandatory Class I Federal areas. The SIP submission also addresses other applicable requirements for the second planning period of the regional haze program. EPA is proposing this action pursuant to sections 110 and 169A of the Act.
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