Environmental Protection Agency 2025 – Federal Register Recent Federal Regulation Documents

EPA is issuing significant new use rules (SNURs) under the Toxic Substances Control Act (TSCA) for certain chemical substances that were the subject of premanufacture notices (PMNs) and are also subject to an Order issued by EPA pursuant to TSCA. The SNURs require persons to notify EPA at least 90 days before commencing the manufacture (defined by statute to include import) or processing of any of these chemical substances for an activity that is designated as a significant new use in the SNUR. The required notification initiates EPA's evaluation of the conditions of that use for that chemical substance. In addition, the manufacture or processing for the significant new use may not commence until EPA has conducted a review of the required notification; made an appropriate determination regarding that notification; and taken such actions as required by that determination.

The Environmental Protection Agency (EPA) is approving, 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 (SO2) National Ambient Air Quality Standards (NAAQS). EPA is approving Ohio EPA's submittal for the area because it provides for the continued maintenance of the 2010 SO2 NAAQS through the end of the second 10-year portion of the maintenance period.

The Environmental Protection Agency (EPA) is proposing to partially approve and partially disapprove a regional haze state implementation plan (SIP) submission submitted by the State of Colorado under the Clean Air Act (CAA) and the EPA's Regional Haze Rule (RHR) for the program's second implementation period. Colorado's 2022 SIP submission addresses the requirement that states revise their long-term strategies every implementation period to make reasonable progress towards the national goal of preventing any future, and remedying any existing, anthropogenic impairment of visibility, including regional haze, in mandatory Class I Federal areas. We propose to base our partial disapproval of Colorado's long-term strategy on its inclusion of insufficiently justified enforceable source closures that are not consistent with statutory requirements. Colorado's 2022 SIP submission also addresses other applicable requirements for the second implementation period of the regional haze program. Concurrently, the EPA is proposing to approve a revision to Colorado's SIP consolidating existing regional haze provisions into the same regulation where the State's new, second planning period provisions are located.

The Environmental Protection Agency (EPA) is proposing to determine that the San Joaquin Valley, California fine particulate matter (PM2.5) nonattainment area attained the 1997 annual PM2.5 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.

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 (SO2) nonattainment area ("Piti-Cabras area" or NAA) for the 2010 1-hour SO2 National Ambient Air Quality Standard (NAAQS, "standard," or "2010 SO2 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.

The Environmental Protection Agency (EPA) is approving State Implementation Plan (SIP) revisions submitted by the State of Connecticut that relate to the 2015 8-hour ozone National Ambient Air Quality Standards (NAAQS). The SIP revisions are for the Greater Connecticut and the Connecticut portion of the New York-Northern New Jersey-Long Island, NY-NJ-CT ozone nonattainment areas. This action will approve submittals which include the 2017 base year emissions inventories for these two nonattainment areas for the 2015 Ozone National Ambient Air Quality Standard. This action is being taken under the Clean Air Act (CAA).

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.

The Environmental Protection Agency (EPA) is extending the comment period for a proposed rule published on June 18, 2025. The current comment period for the proposed rule was scheduled to close on July 18, 2025. EPA is extending the comment period for the proposed action by 30 days to August 18, 2025.

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.

This regulation establishes tolerances for residues of acetamiprid in or on multiple spice commodities that are identified and discussed in this document. Under the Federal Food, Drug, and Cosmetic Act (FFDCA), the American Spice Trade Association submitted a petition to EPA requesting that EPA establish a maximum permissible level for residues of this pesticide in or on these commodities.

This document announces the Agency's receipt of new chemical submissions under the Toxic Substances Control Act (TSCA), including information about the receipt of a Premanufacture notice (PMN), Significant New Use Notice (SNUN), Microbial Commercial Activity Notice (MCAN), and an amendment to a previously submitted notice; test information; a biotechnology exemption application; an application for a test marketing exemption (TME); and a notice of commencement of manufacture (defined by statute to include import) (NOC) for a new chemical substance. This document also provides a periodic status report on the new chemical substances that are currently under EPA review or have recently concluded review. EPA is hereby providing notice of receipt of this information, as required by TSCA, and an opportunity to comment. This document covers the period from 2/27/2025 to 3/31/2025.

This document announces the Agency's receipt of new chemical submissions under the Toxic Substances Control Act (TSCA), including information about the receipt of a Premanufacture notice (PMN), Significant New Use Notice (SNUN), Microbial Commercial Activity Notice (MCAN), and an amendment to a previously submitted notice; test information; a biotechnology exemption application; an application for a test marketing exemption (TME); and a notice of commencement of manufacture (defined by statute to include import) (NOC) for a new chemical substance. This document also provides a periodic status report on the new chemical substances that are currently under EPA review or have recently concluded review. EPA is hereby providing notice of receipt of this information, as required by TSCA, and an opportunity to comment. This document covers the period from 4/1/2025 to 4/30/2025.

The Oklahoma Department of Environmental Quality (ODEQ) has submitted updated regulations for receiving delegation and approval of its program for the implementation and enforcement of certain National Emission Standards for Hazardous Air Pollutants (NESHAP) for all sources, as provided for under previously approved delegation mechanisms. The updated State regulations incorporate by reference certain NESHAP promulgated by the Environmental Protection Agency (EPA), as they existed through June 30, 2023. The EPA is proposing to approve ODEQ's requested delegation update. The proposed delegation of authority under this action applies to sources located in certain areas of Indian country as discussed herein.

The U.S. Environmental Protection Agency's (EPA) Office of Ground Water and Drinking Water is announcing a meeting of the National Drinking Water Advisory Council (NDWAC or Council) as authorized under the Safe Drinking Water Act (SDWA). The purpose of the meeting is for EPA to consult with the NDWAC as required by the SDWA on proposed revisions to the PFAS National Primary Drinking Water Regulation. Additional details will be provided in the meeting agenda, which will be posted on EPA's NDWAC website prior to the meeting. See the SUPPLEMENTARY INFORMATION section of this announcement for more information.

Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is notifying the public that we have received CAA section 111(d)/129 negative declarations from Oklahoma for existing incinerators subject to the Other Solid Waste Incineration units (OSWI), Hospital/Medical/ Infectious Waste Incinerator units (HMIWI), and Commercial and Industrial Solid Waste Incineration Units (CISWI) Emission Guidelines (EG). These negative declarations certify that existing incinerators subject to the OSWI, HMIWI, and CISWI EG and the requirements of sections 111(d) and 129 of the CAA do not exist within specified jurisdictions in Oklahoma. The EPA is proposing to accept the negative declarations and amend the agency regulations in accordance with the requirements of the CAA. In addition, EPA is withdrawing its prior proposed approval of the Oklahoma CISWI plan revision due to Oklahoma's submission of its negative declaration for incinerators subject to the CISWI EG and its withdrawal of the CISWI plan revision.

In the Federal Register of June 20, 2023, EPA proposed significant new use rules (SNURs) under the Toxic Substances Control Act (TSCA) for 18 chemical substances that were the subject of premanufacture notices (PMNs) and a subsequent TSCA Order. EPA is withdrawing the proposed rules because the Agency withdrew the TSCA Order that was the basis of the rules on December 18, 2024.

The U.S. Environmental Protection Agency (EPA) is taking interim final action on revisions to the National Emission Standards for Hazardous Air Pollutants (NESHAP) for the Coke Oven Batteries (COB) source category and the Coke Ovens: Pushing, Quenching, and Battery Stacks (PQBS) source category by revising certain compliance deadlines for standards finalized in 2024. Specifically, the EPA is amending the compliance deadlines for certain 2024 revisions to the COB and PQBS NESHAPs from July 7, 2025 and January 6, 2026, to July 5, 2027. The EPA seeks comment on this final action and will respond to comments received and revise this final action as appropriate.

The Environmental Protection Agency (EPA) is proposing to update federal regulations to reflect Oklahoma's current New Source Performance Standards (NSPS) delegation status and the mailing address for the Oklahoma Department of Environmental Quality (ODEQ). The ODEQ has submitted updated regulations for the delegation of EPA authority for implementation and enforcement of certain NSPS. The updated State regulations incorporate by reference certain NSPS promulgated by EPA, as they existed through June 30, 2023. The delegation of authority for implementation and enforcement applies to sources subject to the delegated NSPS, including those located in certain areas of Indian country as discussed herein.

The Environmental Protection Agency (EPA) is proposing to approve State Implementation Plan (SIP) revisions submitted by the State of Connecticut. These SIP revisions relate to the 2008 8-Hour ozone National Ambient Air Quality Standards (NAAQS). The SIP revisions consist of the following: 2014 and 2017 calendar year periodic emissions inventories. This action is being taken under the Clean Air Act.

The Environmental Protection Agency (EPA) is approving the following portions of Ohio's State Implementation Plan (SIP) submission for the Cleveland 2015 ozone national ambient air quality standard (NAAQS or standard) Moderate nonattainment area: the base year emissions inventory, the reasonable further progress (RFP) demonstration, the motor vehicle inspection and maintenance (I/M) program, and the nonattainment new source review (NNSR) program. EPA is approving these portions of the state's submission as a SIP revision pursuant to section 110 and part D of the Clean Air Act (CAA) and EPA's regulations. EPA is also finding adequate and approving the 2023 motor vehicle emissions budgets (budgets) associated with the Cleveland Moderate ozone nonattainment RFP demonstration. EPA proposed to approve this action on January 3, 2025, and received no comments.

EPA is partially waiving the 2024 cellulosic biofuel volume requirement and revising the associated percentage standard under the Renewable Fuel Standard (RFS) program due to a shortfall in cellulosic biofuel production. This action also makes a minor revision to the biogas provisions of the RFS program.

The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the Florida Department of Environmental Protection (FDEP) on August 15, 2023. The revision removes certain Clean Air Interstate Rule (CAIR)-related definitions, and CAIR-related portions of certain definitions, in the Stationary SourcesGeneral Requirements chapter of the Florida SIP because they have become obsolete. EPA is approving these changes pursuant to the Clean Air Act (CAA or Act).

Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is approving the portion of the State Implementation Plan (SIP) submittal from the State of Louisiana demonstrating that the State satisfies the interstate transport requirements of section 110(a)(2)(D)(i)(I), also known as the "good neighbor" provision of the CAA, for the 2010 1-hour sulfur dioxide (SO2) primary National Ambient Air Quality Standard (NAAQS). The good neighbor provision requires each State's implementation plan to include adequate provisions prohibiting the interstate transport of air pollution in amounts that will contribute significantly to nonattainment, or interfere with maintenance, of a NAAQS in any other State.

The Environmental Protection Agency (EPA) is approving the regional haze State implementation plan (SIP) revision submitted by West Virginia (West Virginia, WV, or the State) on August 12, 2022, to address applicable requirements under the Clean Air Act (CAA) and the EPA's Regional Haze Rule (RHR) for the regional haze program's second implementation period. The EPA is taking this action pursuant to the CAA.

The U.S. Environmental Protection Agency (EPA) is taking interim final action on the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Integrated Iron and Steel Manufacturing Facilities to revise certain compliance deadlines for standards finalized in 2024. Specifically, the EPA is revising certain compliance deadlines in the 2024 rule to April 3, 2027, in light of serious concerns that facilities will be unable to comply with the relevant requirements by the existing deadlines.