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Browse 624 rules and proposed rules from the Federal Register.
624
Total Regulations
Showing 601–624 of 624
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The Environmental Protection Agency (EPA) is making an interim final determination that the California Air Resources Board (CARB) has submitted a Clean Air Act (CAA or "Act") state implementation plan (SIP) revision on behalf of the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD or "District") that corrects deficiencies concerning the District's new source review (NSR) stationary source permitting program. This determination is based on a proposed approval, published elsewhere in this issue of the Federal Register, of SJVUAPCD Rules 1020, 2020, and 2201. The effect of this interim final determination is to defer sanctions that were triggered by the EPA's limited disapproval of SJVUAPCD Rule 2201 in 2023.
The Environmental Protection Agency (EPA) is proposing to partially approve and partially disapprove changes to South Carolina's State Implementation Plan (SIP) to revise regulations prescribing minor source permit program requirements, including minor new source review (NSR) requirements as submitted by the State of South Carolina, through the South Carolina Department of Health and Environmental Control (SC DHEC), on the following dates: October 1, 2007; July 18, 2011; June 17, 2013; August 8, 2014; January 20, 2016; July 27, 2016; and April 24, 2020. This action is being proposed pursuant to the Clean Air Act (CAA or Act).
In the Federal Register of November 19, 2024, EPA issued an advance notice of proposed rulemaking soliciting public comment on and any additional information relevant to the potential risks associated with N-(1,3-Dimethylbutyl)-N'-phenyl-p-phenylenediamine (6PPD) (CASRN 793-24-8, DTXSID 9025114) and its transformation product, 6PPD-quinone (CASRN 2754428-18-5, DTXSID 301034849). EPA is soliciting that information, along with information about potential alternatives and regulatory options, to help inform the Agency's consideration of potential future regulatory actions under the Toxic Substances Control Act (TSCA). With this document, EPA is extending the comment period by 60 days, from January 21, 2025, to March 24, 2025.
The Environmental Protection Agency (EPA) is revising a Federal Implementation Plan (FIP) applicable to sulfur dioxide (SO<INF>2</INF>) emissions from four sources located in Billings and Laurel, Montana. Specifically, the EPA is revising a portion of the FIP promulgated by the EPA in 2008 (2008 Billings/Laurel SO<INF>2</INF> FIP) by removing a provision which contained an affirmative defense for exceedances of flare emission limits during malfunctions, startups, and shutdowns. The EPA is taking this action pursuant to the Clean Air Act (CAA).
The Environmental Protection Agency (EPA) is updating the materials that are incorporated by reference (IBR) into the Alaska State Implementation Plan (SIP). The regulations affected by this update have been previously submitted by the State of Alaska and approved by the EPA. In this final rule, the EPA is also notifying the public of corrections and clarifying changes in the Code of Federal Regulations tables that identify the materials incorporated by reference into the Alaska SIP. This update affects the materials that are available for public inspection at the National Archives and Records Administration and the EPA Regional Office.
The U.S. Environmental Protection Agency (EPA) is finalizing amendments to the National Volatile Organic Compound Emission Standards for Aerosol Coatings. This action revises national emission standards for the aerosol coatings (aerosol spray paints) category under the Clean Air Act (CAA), which requires control of volatile organic compound (VOC) emissions from certain categories of consumer and commercial products for purposes of reducing VOC emissions contributing to ozone formation and ozone nonattainment. The regulation employs a relative reactivity-based approach to control aerosol coating products' contribution to ozone formation by encouraging the use of less reactive VOC ingredients in formulations. In this final rule, the EPA is updating coating category product-weighted reactivity (PWR) limits, adding new compounds and reactivity factors, updating existing reactivity factors, revising the rule's default reactivity factor, amending thresholds for VOC regulated by the rule, amending reporting requirements, updating test methods to reflect more recent versions, adding a new compliance date, and making clarifying edits.
The Environmental Protection Agency (EPA) is modifying proposed amendments to the New Source Performance Standards and Emission Guidelines for Existing Sources for the Crude Oil and Natural Gas Source Category in response to petitions for reconsideration. This action corrects information collection estimates in the January 15, 2025 notice of proposed rulemaking.
The Environmental Protection Agency (EPA) is finalizing deadlines for submission of state implementation plan (SIP) revisions and implementation of the relevant control requirements that will apply for nonattainment areas reclassified as Moderate, Serious, and Severe under the current and any future ozone National Ambient Air Quality Standards (NAAQS) as a result of either failing to attain the standard by the applicable classification attainment date or the EPA granting a voluntary reclassification request. This final rule articulates the implementation requirements and timeframes that will apply for all such areas once reclassified. The EPA is also finalizing regulatory revisions to codify its existing interpretation that following reclassification, a state is no longer required to submit SIP revisions addressing certain, but not all, requirements related to the prior classification level for an ozone nonattainment area.
The National Defense Authorization Act for Fiscal Year 2020 (NDAA) adds certain per- and polyfluoroalkyl substances (PFAS) automatically to the Toxics Release Inventory (TRI) beginning January 1 of the year following specific triggering events. The Environmental Protection Agency (EPA or Agency) is proposing to make conforming edits to the TRI regulation to explicitly include PFAS that are added to the TRI chemical list automatically pursuant to the NDAA in the regulation's definition of "toxic chemical." This edit confirms that the TRI supplier notification provision requires covered suppliers to notify customers receiving a mixture or other trade name product containing a TRI-listed chemical with the first shipment of each calendar year, with such a requirement beginning on January 1 of the applicable year; thus, supplier notifications are required as of January 1 for any NDAA-added PFAS.
The Environmental Protection Agency (EPA) is proposing an approval and a limited approval and limited disapproval of a State Implementation Plan (SIP) submission made by the State of Arizona to address emissions of particulate matter 10 micrometers in diameter or smaller (PM<INF>10</INF>) from agricultural operations. The SIP submission includes an amended statute, two definition rules, and two rules regulating crop and animal operations in Pinal County, Arizona. We are proposing action on local rules to regulate these emission sources under the Clean Air Act (CAA or "Act"). We are taking comments on this proposal and plan to follow with a final action.
The Environmental Protection Agency (EPA) is approving a revision to the Washington State Implementation Plan (SIP) that was submitted by the Department of Ecology (Ecology) in coordination with the Olympic Region Clean Air Agency (ORCAA). In 2013, Ecology and ORCAA inadvertently submitted for incorporation into the SIP a ban on small, recreational fires in Thurston County. These fires are defined as having a maximum pile size of three feet in diameter by two feet high using seasoned firewood or charcoal, generally associated with backyard, summer campfires. Ecology and ORCAA provided a review of the historical record to demonstrate that the ban on recreational fires was not relied upon for attainment, maintenance, or reasonable further progress in the Thurston County area. Ecology and ORCAA also provided data to demonstrate that removing the ban on recreational fires would not interfere with maintenance of the national ambient air quality standards. Therefore, we are approving the request by Ecology and ORCAA to remove this provision from the SIP.
The Environmental Protection Agency (EPA) is reopening the comment period on the proposed Standards of Performance for New Stationary Sources and Emission Guidelines for Existing Sources: Large Municipal Waste Combustors Voluntary Remand Response and 5-Year Review. The original proposed rule was published on January 23, 2024, with a 60-day comment period closing March 25, 2024. With this notification, EPA is reopening the public comment period for an additional 6 months, from January 16, 2025, to July 16, 2025.
The Environmental Protection Agency (EPA) is correcting a final rule published in the Federal Register on October 12, 2023, that became effective on November 13, 2023. The final rule updated the current ozone absorption cross-section to the recommended consensus- based value of 1.1329x10<SUP>-17</SUP> cm\2\ molecule<SUP>-1</SUP> or 304.39 atm<SUP>-1</SUP> cm<SUP>-1</SUP>. After publication, the EPA became aware of an error in the preamble text regarding the date for State, local, and Tribal monitoring agencies to complete implementation of the new ozone cross-section value, as well as a lack of clarity as to which entities the 2025 and 2026 implementation dates apply. With this action, the EPA is updating the final rule preamble and regulatory text to clarify the applicable implementation dates and the specific entities to which they apply. These corrections do not include any substantive changes to the final rule.
The Environmental Protection Agency (EPA or the Agency) is taking direct final action to correct errors and clarify several provisions published in the Federal Register on May 8, 2024. This May 8, 2024 rule (Legacy Final Rule) established regulatory requirements for legacy coal combustion residuals (CCR) surface impoundments and CCR management units, among other things, under the Resource Conservation and Recovery Act (RCRA).
The Environmental Protection Agency (EPA or the Agency) is proposing to correct errors and clarify several provisions published in the Federal Register on May 8, 2024. This May 8, 2024 rule (Legacy Final Rule) established regulatory requirements for legacy coal combustion residuals (CCR) surface impoundments and CCR management units, among other things, under the Resource Conservation and Recovery Act (RCRA). This proposal seeks comment on issues discussed in a direct final rule to correct errors and clarify in the Legacy Final Rule.
The Environmental Protection Agency (EPA) issued a final permit decision under title V of the Clean Air Act (CAA) to Deseret Bonanza and Transmission Co-operative (Deseret) for the operation of Deseret's Uintah County, Utah, Bonanza Power Plant (Bonanza).
This action announces the Environmental Protection Agency's (EPA's) approval of alternative testing methods for use in measuring the levels of contaminants in drinking water to determine compliance with national primary drinking water regulations. The Safe Drinking Water Act authorizes EPA to approve the use of alternative testing methods through publication in the Federal Register. EPA is using this streamlined authority to make two additional methods available for analyzing drinking water samples. This expedited approach provides public water systems, laboratories, and primacy agencies with more timely access to new measurement techniques and greater flexibility in the selection of analytical methods, thereby reducing monitoring costs while maintaining public health protection.
The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the Montana Department of Environmental Quality (MDEQ or "the State"), on January 30, 2024, requesting to change the status of gasoline requirements (the "oxygenated fuels" or "oxyfuels" program) in the Missoula, Montana Carbon Monoxide (CO) Limited Maintenance Plan (LMP) from active control measure to a contingency measure. The SIP revision contains a non- interference demonstration under the Clean Air Act (CAA), which concludes that converting the oxygenated gasoline program from a control measure to a contingency measure in the Missoula CO LMP would not interfere with attainment or maintenance of the CO National Ambient Air Quality Standard (NAAQS). The EPA is finalizing approval of Montana's SIP submittal pursuant the CAA.
The Environmental Protection Agency (EPA) is taking final action to approve revisions to the Maricopa County Air Quality Department (MCAQD or "County") portions of the Arizona State Implementation Plan (SIP). These revisions concern the County's reasonably available control technology (RACT) demonstration for the aerospace coating category and negative declarations for the 2008 8- hour ozone National Ambient Air Quality Standards (NAAQS or "standards") in the portion of the Phoenix-Mesa ozone nonattainment area regulated by the MCAQD, as well as a rule covering emissions of volatile organic compounds (VOCs) from surface coatings and industrial adhesives. We are also approving a local rule that regulates these emission sources under the Clean Air Act (CAA or "the Act").
The Environmental Protection Agency (EPA) is proposing to approve revisions to the State Implementation Plan (SIP) and Operating Permits Program and the 112(l)plan submitted by the State of Kansas on February 20, 2023. The revised Kansas rules update the Class I emission fee and emissions inventory regulations, establish a Class II fee schedule and ensure that Kansas's Operating Permits Program is adequately funded. Approval of these revisions ensures consistency between the State and federally-approved rules and does not impact air quality.
The U.S. Environmental Protection Agency (EPA) is providing notice that it has responded to two petitions for reconsideration of the final action titled, "New Source Performance Standards for Greenhouse Gas Emissions From New, Modified, and Reconstructed Fossil Fuel-Fired Electric Generating Units; Emission Guidelines for Greenhouse Gas Emissions From Existing Fossil Fuel-Fired Electric Generating Units; and Repeal of the Affordable Clean Energy Rule", published in the Federal Register on May 9, 2024. The Administrator has denied or partially denied the requests for reconsideration in separate letters to the petitioners. The basis for the EPA's action is set out fully in the accompanying decision document, available in the rulemaking docket. At this time, the EPA is not addressing other grounds for reconsideration that have been raised by these or other petitioners.
The Environmental Protection Agency (EPA) is proposing amendments to the New Source Performance Standards and Emission Guidelines for Existing Sources for the Crude Oil and Natural Gas Source Category in response to petitions for reconsideration. Specifically, this action proposes discrete technical changes to two different aspects of the rules. First, this action proposes discrete technical changes to the temporary flaring provisions for associated gas in certain situations. Second, this action proposes discrete technical changes to the vent gas net heating value (NHV) continuous monitoring requirements and alternative performance test (sampling demonstration) option for flares and enclosed combustion devices. In a letter dated May 6, 2024, the EPA notified petitioners and the public that the Agency granted reconsideration on these two aspects of the March 8, 2024 (89 FR 16820) final rule. These amendments neither propose changes to any other aspect of the final rule, nor propose to alter the substance of any emission standards within the final rule. Also, in this action, the EPA proposes to make formatting changes to the regulatory text to meet the required formatting standards of the Office of the Federal Register.
This action finalizes revisions, updates, and corrections to EPA's streamlined fuel quality regulations. This action does not change the stringency of the existing fuel quality standards.
The Environmental Protection Agency (EPA or Agency) is proposing to address the unreasonable risk of injury to human health presented by C.I. Pigment Violet 29 (CASRN 81-33-4, also known as PV29), under its conditions of use as documented in EPA's January 2021 Risk Evaluation for PV29 and the September 2022 Revised Risk Determination for PV29 prepared under TSCA. TSCA requires that EPA address by rule any unreasonable risk of injury to health or the environment identified in a TSCA risk evaluation and apply requirements to the extent necessary so the chemical no longer presents unreasonable risk. To address the identified unreasonable risk, EPA is proposing requirements to protect workers from the unreasonable risk of PV29 during manufacturing and processing, certain industrial and commercial uses of the chemical, and disposal, while also allowing for a reasonable transition period prior to enforcement of said requirements.