Loading
Loading
Your feedback directly shapes Sporos.
Sign in to track your feedback history
Browse 622 rules and proposed rules from the Federal Register.
622
Total Regulations
Showing 61–90 of 622
Page 3 / 21
The Environmental Protection Agency (EPA) is approving portions of the regional haze state implementation plan (SIP) revisions submitted by the Nevada Division of Environmental Protection (NDEP) on August 12, 2022 ("2022 Nevada Regional Haze Plan") and on May 28, 2025 ("2025 SIP Supplement"), 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. These revisions address the requirement that states must periodically revise their long-term strategies for making 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. The revisions also address other applicable requirements for the second implementation period of the regional haze program.
The Environmental Protection Agency (EPA) is proposing to grant, with conditions, US Ecology Nevada Inc.'s (USE) petition for a site-specific treatability variance from the Resource Conservation and Recovery Act (RCRA) Land Disposal Restrictions (LDR) treatment standards. USE's petition is for treatment and disposal of elemental mercury waste generated from retorting high mercury waste in accordance with the LDR technology-based standard of RMERC. The EPA believes that the petition demonstrates that the LDR standard for placing elemental mercury generated from RMERC back into commerce for reuse is inappropriate and the treatment variance is sufficient to minimize threats to human health and the environment posed by land disposal of the waste. If the variance is granted, the existing LDR treatment standard of RMERC will continue to apply to high mercury hazardous wastes, but the elemental mercury generated from this process will be treated and land disposed subject to specified conditions at both Bethlehem Apparatus in Hellertown, Pennsylvania and USE's Beatty, Nevada, Subtitle C treatment, storage, and disposal (TSD) facility where treated mercury wastes will be disposed in a designated monofill.
The U.S. Environmental Protection Agency (EPA) is taking final action to partially approve and partially disapprove a submission by the State of California to revise its State Implementation Plan (SIP) relating to the control of emissions from non-gasoline combustion vehicles over 14,000 pounds. The EPA's partial approval will allow the submitted Heavy-Duty Inspection and Maintenance Regulation ("HD I/M Regulation") to become federally enforceable as part of the California SIP with respect to vehicles registered within the State. The EPA is partially disapproving the submission to the extent that the HD I/M Regulation purports to apply to out-of-state vehicles as inconsistent with the Clean Air Act (CAA), because the State has not provided adequate assurances under CAA section 110(a)(2)(E)(i) that implementation of the SIP is not prohibited by Federal law. The partial disapproval will not trigger CAA section 179 sanctions because the submittal is not a required submission under CAA section 110(a)(2).
This document announces the Agency's receipt of and solicits public comment on initial filings of pesticide petitions requesting the establishment or modification of regulations for residues of pesticide chemicals in or on various commodities. The Agency is providing this notice in accordance with the Federal Food, Drug, and Cosmetic Act (FFDCA). EPA uses the month and year in the title to identify when the Agency compiled the petitions identified in this notice of filing. Unit II. of this document identifies certain petitions received in 2024 and 2025 that are currently being evaluated by EPA, along with information about each petition, including who submitted the petition and the requested action.
Pursuant to the Clean Air Act (CAA), the U.S. Environmental Protection Agency (EPA) is proposing to approve State Implementation Plan (SIP) submissions from eight States--Alabama, Arizona, Kentucky, Minnesota, Mississippi, Nevada, New Mexico, and Tennessee--regarding interstate transport for the 2015 8-hour ozone National Ambient Air Quality Standards (NAAQS). This action also explains why the EPA anticipates withdrawing previously proposed EPA error-correction actions related to interstate transport obligations for Iowa and Kansas and withdrawing previously proposed SIP disapproval actions for Tennessee, New Mexico, and Arizona. The "good neighbor" or "interstate transport" provision requires that each State's SIP contain adequate provisions to prohibit emissions from within the State from significantly contributing to nonattainment or interfering with maintenance of the NAAQS in other States. If finalized as proposed, this action would resolve these 10 States' obligations to eliminate significant contribution to nonattainment or interference with maintenance of the 2015 8-hour ozone NAAQS in other States.
The U.S. Environmental Protection Agency (the EPA or Agency) is issuing a notice to correct some of the deadlines listed in the final rule, "Effluent Limitations Guidelines and Standards for the Steam Electric Generating Point Source Category-- Deadline Extensions," which published in the Federal Register on December 31, 2025. After publication, the EPA became aware of post- signature typographical errors in the published regulatory text concerning compliance deadlines for pretreatment standards and related reporting recordkeeping requirements in the rule. This correction will ensure that the rule's compliance deadlines and reporting and recordkeeping deadlines match those in the version of the rule signed by the EPA Administrator.
This regulation establishes an exemption from the requirement of a tolerance for residues of PDHP 68949 in or on all food commodities if used according to the label and good agricultural practices. Plant Health Care, Inc. submitted a petition to the EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), requesting an exemption from the requirement of a tolerance. This regulation eliminates the need to establish a maximum permissible level for residues of PDHP 68949 under FFDCA when used in accordance with this exemption.
This regulation establishes an exemption from the requirement of a tolerance for residues of chlorate (CAS Reg. No. 7775-09-9) in or on several food commodities. Under the Federal Food, Drug, and Cosmetic Act (FFDCA), TriNova LLC submitted a petition to EPA requesting an exemption from the requirement of a tolerance. This regulation eliminates the need to establish a maximum permissible level for residues of this pesticide when used in accordance with the terms of the exemption.
The Environmental Protection Agency (EPA) is finalizing our determination 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 determination is based on ambient air quality monitoring data from 2022 through 2024. We are also making a clean data determination (CDD) based on the 2022 through 2024 data and our evaluation of preliminary air quality monitoring data from 2025.
The Environmental Protection Agency (EPA) approves revisions to the Oregon State Implementation Plan (SIP) applicable in Lane County, Oregon, as meeting Clean Air Act requirements. The revisions, submitted on June 26, 2024, align local stationary source permitting rules with existing State rules by eliminating generic plant site emission limits in favor of source-specific limits, updating construction notification requirements, clarifying the use of modeling and monitoring related to permitting, and streamlining the permit application process.
The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision submitted by the Commonwealth of Pennsylvania. This SIP revision addresses Clean Air Act (CAA) requirements for the enactment of a Basic vehicle emissions inspection and maintenance (I/M) program for the five counties comprising the Pennsylvania portion of the Philadelphia-Wilmington-Atlantic City, PA- NJ-MD-DE Moderate nonattainment area (Philadelphia nonattainment area) for the 2015 8-hour ozone national ambient air quality standards (NAAQS). The SIP revision demonstrates that Pennsylvania's existing I/M program in the Philadelphia nonattainment area meets applicable requirements for a Basic I/M program. The EPA is approving this SIP revision to the Pennsylvania SIP in accordance with the requirements of the Clean Air Act (CAA).
The Environmental Protection Agency (EPA) is denying the request to redesignate the Kentucky portion of the Louisville, Kentucky-Indiana, 2015 8-hour ozone nonattainment area (hereinafter referred to as the "Louisville, KY-IN Area" or "Area") to attainment for the 2015 8-hour ozone National Ambient Air Quality Standards (NAAQS or standards). EPA is taking no action at this time on Kentucky's maintenance plan, including the regional motor vehicle emission budgets for nitrogen oxides (NO<INF>X</INF>) and volatile organic compounds (VOC) for the years of 2019 and 2035, submitted with Kentucky's redesignation request for the Louisville, KY-IN Area. The redesignation request and the maintenance plan state implementation plan (SIP) revision were submitted by the Commonwealth of Kentucky, through the Kentucky Energy and Environment Cabinet (Cabinet), Division for Air Quality (KDAQ), on September 6, 2022.
The Environmental Protection Agency (EPA) is proposing action related to the attainment date for the Kentucky portion of the Louisville, Kentucky-Indiana area (hereinafter referred to as the "Louisville, KY-IN Area" or "Area"). The Kentucky portion of this Area is classified as "Moderate" nonattainment for the 2015 ozone National Ambient Air Quality Standard (NAAQS), and the Indiana portion of this Area has been redesignated to attainment for this NAAQS. EPA is proposing to determine, with the consideration of exceptional events, that the Kentucky portion of the Louisville, KY-IN Area attained the standard by the applicable August 3, 2024, attainment date. This action, if finalized, will fulfill EPA's statutory obligation to determine whether the Kentucky portion of the Louisville, KY-IN Area attained the 2015 8-hour ozone NAAQS by the Moderate attainment date. As part of this rulemaking, EPA also proposes to take final agency action on the portion of an exceptional events request submitted by the Louisville Metro Air Pollution Control District (LMAPCD) on June 11, 2025, addressing six days in June 2023. EPA concurred on these six days on August 12, 2025. The proposed determination by the attainment date is based on EPA's partial concurrence on the exceptional events demonstration. This action is being taken under the Clean Air Act (CAA or Act).
This document announces the Agency's receipt of and solicits public comment on initial filings of pesticide petitions requesting the establishment or modification of regulations for residues of pesticide chemicals in or on various commodities. The Agency is providing this notice in accordance with the Federal Food, Drug, and Cosmetic Act (FFDCA). EPA uses the month and year in the title to identify when the Agency compiled the petitions identified in this notice of filing. Unit II. of this document identifies certain petitions received in 2025 that are currently being evaluated by EPA, along with information about each petition, including who submitted the petition and the requested action.
The Environmental Protection Agency (EPA or agency) proposes revisions to the agency's regulations under the Freedom of Information Act (FOIA or Act). This action is based on EPA's targeted reconsideration of the 2023 Freedom of Information Act (FOIA) Regulations Update, Phase II. EPA proposes to eliminate the inclusion of the newly minted Environmental Justice Expedited Processing (EJ EP) criteria.
The Environmental Protection Agency (EPA) is approving the Regional Haze State Implementation Plan (SIP) revision for Indiana submitted by the Indiana Department of Environmental Management (IDEM or Indiana) on December 29, 2021, as satisfying applicable requirements under the Clean Air Act (CAA) and EPA's Regional Haze Rule (RHR) for the program's second implementation period. Indiana's SIP submission addresses the requirement that States must periodically revise their long-term strategies for making 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. Indiana's SIP submission also addresses other applicable requirements for the second implementation period of the regional haze program. EPA is taking this action pursuant to sections 110 and 169A of the CAA.
Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is approving revisions to the State Implementation Plan (SIP) for Oklahoma, submitted to the EPA by the State of Oklahoma designee ("the State") on November 22, 2024. The SIP revisions being finalized address amendments to Subchapter 13, Open Burning.
Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is approving revisions to the Arkansas State Implementation Plan (SIP) submitted by the Arkansas Department of Energy and Environment (ADEE) to the EPA on February 4, 2025. The revisions address the codification of the Arkansas Pollution Control and Ecology Commission (APC & EC) Rule 19 and Regulations 9, 26, and 31 into the Code of Arkansas Rules (CAR). The revisions are non-substantive formatting edits and do not relax or introduce new rules to the approved SIP.
The Environmental Protection Agency (EPA) is disapproving a regional haze state implementation plan (SIP) revision submitted in 2022 by the State of Colorado under the Clean Air Act (CAA or Act) and the EPA's Regional Haze Rule (RHR) for the program's second implementation period. Colorado's 2022 regional haze SIP revision 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 (Class I areas). We are disapproving Colorado's 2022 regional haze SIP revision pursuant to the CAA and regulatory regional haze requirements. The EPA is not taking final action at this time on a separate revision to Colorado's SIP that consolidates existing, previously approved regional haze provisions into the same regulation where Colorado's new, second planning period provisions are located.
The Environmental Protection Agency (EPA) is proposing to determine that the Baltimore, Maryland nonattainment area (the Baltimore Area or the Area) has clean data for the 2015 8-hour ozone national ambient air quality standards (2015 ozone NAAQS or standard). This proposed clean data determination (CDD) under the EPA's Clean Data Policy is based upon quality-assured, quality-controlled, and certified ambient air quality monitoring data showing that the Baltimore Area has attained the 2015 ozone NAAQS based on 2022-2024 data available in the EPA Air Quality System (AQS) database. If finalized, this proposed CDD would suspend the obligations of the State of Maryland (MD) to submit certain attainment area planning requirements for as long as the Baltimore Area continues to attain the 2015 ozone NAAQS. As part of this rulemaking, the EPA also proposes to take final agency action on portions of exceptional events requests submitted by MD on February 2, 2024 and concurred on by the EPA on November 12, 2025. The proposed CDD is based upon the EPA's concurrence on portions of the exceptional events demonstrations. This action is being taken under the Clean Air Act (CAA).
The Environmental Protection Agency (EPA) is extending the comment period for a proposed rule that published January 2, 2026. The current comment period for the proposed rule was scheduled to close on February 2, 2026. The EPA is extending the comment period for the proposed action to February 9, 2026.
The Environmental Protection Agency (EPA) is proposing to approve revisions to the Montana State Implementation Plan (SIP). These revisions specifically address sulfur dioxide (SO<INF>2</INF>) emission limits and associated requirements related to the Western Sugar Cooperative facility in Billings, Montana. The EPA is taking this action pursuant to the Clean Air Act (CAA).
The Environmental Protection Agency (EPA) is approving revisions to Ohio Administrative Code (OAC) Chapters 3745-21 and 3745- 110 into the Ohio State Implementation Plan (SIP). The Ohio Environmental Protection Agency ("Ohio" or "Ohio EPA") submitted these revisions on March 30, 2022, and supplemented the submittal on February 1, 2023, and August 28, 2023. The EPA is approving parts of OAC Chapters 3745-21 and 3745-110 as satisfying some of the Moderate Volatile Organic Compound (VOC) Reasonably Available Control Technology (RACT) and Nitrogen Oxide (NO<INF>X</INF>) RACT requirements for the Cleveland, OH nonattainment area (Cuyahoga, Geauga, Lake, Lorain, Medina, Portage, and Summit counties) under the 2015 ozone National Ambient Air Quality Standard ("NAAQS" or "standard") and as SIP strengthening for Ashtabula County and the Ohio portion of the Cincinnati, OH-KY maintenance area (Butler, Clermont, Hamilton, and Warren counties). The EPA is also approving Table (M)(1) in OAC rule 3745-21-07 into the SIP, with the exception of the row for The Ruscoe Company. Finally, the EPA is approving OAC rule 3745-15-03, submitted by Ohio on February 9, 2023, and supplemented on December 1, 2023, and December 30, 2024. The EPA proposed to approve this action on August 28, 2025 and received two comments.
The Environmental Protection Agency (EPA) is proposing to determine that the Riverside County (Coachella Valley) 1997 ozone Extreme nonattainment area ("Coachella Valley") attained the 1997 ozone national ambient air quality standards (NAAQS) by its June 15, 2025, attainment date. This proposed determination is based on quality- assured and certified ambient air quality monitoring data from 2022 through 2024. We are taking comments on this proposal and plan to follow with a final action.
The U.S. Environmental Protection Agency (EPA) is publishing this proposed rule to update and clarify several substantive and procedural requirements for water quality certification under Clean Water Act (CWA or the Act) section 401. CWA section 401 is a direct grant of authority to States (and Tribes that have been approved for "treatment as a State" status) to review for compliance with appropriate Federal, State, and Tribal water quality requirements any discharge into waters of the United States that may result from a proposed activity that requires a Federal license or permit. This proposed rule is intended to clarify several aspects of the certification process consistent with the statutory framework.
The U.S. Environmental Protection Agency (EPA, or Agency) is finalizing amendments to the new source performance standards (NSPS) for stationary combustion turbines and stationary gas turbines pursuant to a review required by the Clean Air Act (CAA). As a result of this review, the EPA is establishing subcategories for new, modified, or reconstructed stationary combustion turbines based on size, rates of utilization, design efficiency, and fuel type. The EPA determined that combustion controls are the best system of emission reduction (BSER) for nitrogen oxide (NO<INF>X</INF>) emissions for most new, modified, or reconstructed stationary combustion turbines. For one subcategory, the BSER for NO<INF>X</INF> is combustion controls with the addition of selective catalytic reduction (SCR). The EPA further determined that the BSER for sulfur dioxide (SO<INF>2</INF>) emissions has not changed since the last NSPS review. Based on these determinations, the Agency is promulgating standards of performance in a new subpart of the Code of Federal Regulations (CFR). The Agency is also adding a subcategory for stationary combustion turbines that are used in temporary applications, exempting certain sources from title V requirements, and finalizing other provisions. The EPA is finalizing amendments to existing regulations to address or clarify specific technical and editorial issues.
This regulation establishes tolerances for residues of pyriofenone in or on apple; apple, wet pomace; berry, low growing, subgroup 13-07G (except cranberry); and cherry subgroup 12-12A. ISK Biosciences Corporation requested these tolerances under the Federal Food, Drug, and Cosmetic Act (FFDCA).
This regulation establishes a tolerance for residues of permethrin in or on the food and feed commodities of dragon fruit (pitaya) as well as crop group expansions to field corn subgroup 15-22C and sweet corn subgroup 15-22D, and crop group conversions to leafy greens subgroup 4-16A, including tolerances for arugula, garden cress, and upland cress. The Interregional Research Project No. 4 (IR-4), requested this tolerance under the Federal Food, Drug, and Cosmetic Act (FFDCA).
The Environmental Protection Agency (EPA) is approving delegation of authority to the Ohio Environmental Protection Agency (Ohio EPA) for implementing and enforcing the Federal plan requirements for municipal solid waste (MSW) landfills that commenced construction on or before July 17, 2014, and have not been modified or reconstructed since July 17, 2014. Additionally, Ohio EPA has requested to withdraw an existing MSW landfill State plan which will be replaced with the delegation of authority of the Federal plan. On June 12, 2025, the Ohio EPA Director signed a Memorandum of Agreement concerning the delegation of authority of the Federal plan to Ohio EPA by EPA. On June 24, 2025, the Memorandum of Agreement became effective upon the EPA Region 5 Regional Administrator's signature. The Federal plan addresses the implementation and enforcement of emission guidelines that impose emission limits and other control requirements on designated air pollutants from MSW landfills. This document informs the public of the Memorandum of Agreement, provides a copy of the signed document, and amends regulatory text in accordance with the Clean Air Act (CAA).
The Environmental Protection Agency (EPA) finds that Huntington Township in Huntington County, Indiana (hereafter referred to as "Huntington area") is attaining the 2010 sulfur dioxide (SO<INF>2</INF>) National Ambient Air Quality Standard (NAAQS). EPA is approving Indiana's request to redesignate the Huntington area from nonattainment to attainment for the 2010 SO<INF>2</INF> NAAQS because the request meets the statutory requirements for redesignation under the Clean Air Act (CAA). EPA is also approving Indiana's maintenance plan for the area as part of Indiana's federally enforceable State Implementation plan (SIP).