🌫️EPA Proposes Utah Air Plan Approval for PM2.5 Standards
The Environmental Protection Agency (EPA) is proposing to approve, through parallel processing, a State Implementation Plan (SIP) submission from the State of Utah with revisions to Utah Administrative Code (UAC), Utah State SIP, and the best available control measures/ best available control technologies (BACM/BACT) determinations for five facilities found in the Salt Lake City, Utah nonattainment area (NAA) for the 2006 24-hour fine particulate matter with an aerodynamic diameter less than or equal to a nominal 2.5 microns (PM<INF>2.5</INF>) National Ambient Air Quality Standard (NAAQS) (State of Utah draft dated May 20, 2025). The EPA is taking this action pursuant to the Clean Air Act (CAA or the Act).
Learn More🌱EPA Findings on New Chemicals Under TSCA Regulations
The Toxic Substances Control Act (TSCA) requires EPA to publish in the Federal Register a statement of its findings after its review of certain TSCA submissions when EPA makes a finding that a new chemical substance or significant new use is not likely to present an unreasonable risk of injury to health or the environment. Such statements apply to premanufacture notices (PMNs), microbial commercial activity notices (MCANs), and significant new use notices (SNUNs) submitted to EPA under TSCA. This document presents statements of findings made by EPA on such submissions during the period from May 1, 2025 to May 31, 2025.
Learn More🌊General Permit for Ocean Disposal of Marine Mammal Carcasses
The Environmental Protection Agency (EPA) is re-issuing a general permit under the Marine Protection, Research and Sanctuaries Act (MPRSA) to authorize the transport of marine mammal and sea turtle carcasses from the United States and disposal of marine mammal and sea turtle carcasses in ocean waters. Permit re-issuance is necessary because the most recent permit expired on January 4, 2024. The EPA has not made substantive changes to the content of the recently expired general permit, though it has revised the scope and eligibility provisions, and general permittees will be able to resume permitted deposition of marine mammal carcasses in ocean waters pursuant to the re-issued permit terms.
Learn More🌍EPA Proposes Approval of Ohio's Sulfur Dioxide Maintenance Plan
The Environmental Protection Agency (EPA) is proposing to approve, under the Clean Air Act (CAA), the second 10-year maintenance plan submitted to EPA on November 7, 2024, by the Ohio Environmental Protection Agency (Ohio EPA) for the Ohio portion of the Campbell- Clermont Counties, Kentucky-Ohio maintenance area. The Ohio portion of this area consists of Pierce Township in Clermont County, Ohio. The plan addresses the second 10-year maintenance period for the 2010 sulfur dioxide (SO<INF>2</INF>) National Ambient Air Quality Standards (NAAQS). EPA is proposing to approve Ohio EPA's submittal for the area because it provides for the continued maintenance of the 2010 SO<INF>2</INF> NAAQS through the end of the second 10-year portion of the maintenance period.
Learn More🌬️Proposed Air Quality Regulations for Montana Business Compliance
The Environmental Protection Agency (EPA) is proposing to approve elements of a state implementation plan (SIP) submission from Montana regarding the infrastructure requirements of the Clean Air Act (CAA) for the 2015 ozone National Ambient Air Quality Standards (NAAQS). The infrastructure requirements are designed to ensure that the structural components of each state's air quality management program are adequate to meet the state's responsibilities under the CAA. Additionally, EPA is proposing to approve Montana's request to update their SIP, to incorporate the most current version of the "Guideline on Air Quality Models." The EPA is taking this action pursuant to the CAA.
Learn More🌬️Proposed Revisions to Minnesota Air Quality Regulations
The Environmental Protection Agency (EPA) is proposing to approve a revision to the Minnesota State Implementation Plan (SIP) which updates Minnesota's air program rules. The Minnesota Pollution Control Agency (MPCA) submitted the request to EPA on October 1, 2021. The revision to Minnesota's air quality rules will reflect changes that have occurred to the State air quality rules since July 2020. EPA is proposing to approve MPCA's submittal, which will result in consistent requirements of rules at both the State and Federal level.
Learn More🌫️EPA Proposes Approval of Guam's Sulfur Dioxide Emissions Plan
The Environmental Protection Agency (EPA) is proposing to approve a revision to Guam's State Implementation Plan (SIP) under section 110(k)(3) of the Clean Air Act (CAA or "the Act"). This revision concerns the base year emissions inventory for the Piti- Cabras, Guam sulfur dioxide (SO<INF>2</INF>) nonattainment area ("Piti-Cabras area" or NAA) for the 2010 1-hour SO<INF>2</INF> National Ambient Air Quality Standard (NAAQS, "standard," or "2010 SO<INF>2</INF> NAAQS"). We are taking comments on a proposed approval of this revision and are simultaneously publishing a final action approving this revision in a direct final rule.
Learn More🌫️EPA Proposes New PM2.5 Air Quality Standards Affecting Businesses
The Environmental Protection Agency (EPA) is proposing to determine that the San Joaquin Valley, California fine particulate matter (PM<INF>2.5</INF>) nonattainment area attained the 1997 annual PM<INF>2.5</INF> national ambient air quality standards (NAAQS) by the December 31, 2024 applicable attainment date. This proposed determination is based on ambient air quality monitoring data from 2022 through 2024. We are also proposing to make a clean data determination (CDD) based on the 2022 through 2024 data and our evaluation of preliminary air quality monitoring data from 2025. We are taking comments on this proposal and plan to follow with a final action.
Learn More🍊New Triclopyr Pesticide Tolerances Impacting Agriculture
This regulation establishes a tolerance for residues of triclopyr, including its metabolites and degradates, in or on orange subgroup 10-10A. UPL Chile S.A. requested this tolerance under the Federal Food, Drug, and Cosmetic Act (FFDCA).
Learn More🌍EPA Approves Guam Sulfur Dioxide Emissions Inventory Plan
The Environmental Protection Agency (EPA) is taking direct final action to approve a revision to Guam's State Implementation Plan (SIP) under section 110(k)(3) of the Clean Air Act (CAA or "the Act"). This revision concerns the base year emissions inventory for the Piti-Cabras, Guam sulfur dioxide (SO<INF>2</INF>) nonattainment area ("Piti-Cabras area" or NAA) for the 2010 1-hour SO<INF>2</INF> National Ambient Air Quality Standard (NAAQS, "standard," or "2010 SO<INF>2</INF> NAAQS").
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