Unified Agenda
Environmental Protection Agency: 2026 Regulatory Agenda
Every rulemaking the EPA has on its regulatory agenda in the 2026 Unified Agenda. Proposed rules, final rules, and long-term actions, each with the agency's own summary and its latest status.
Source: the 2026 Regulatory Plan and Unified Agenda, published by OIRA on July 3, 2026 (reginfo.gov). The EPA lists 184 active actions plus 30 completed this cycle. Refreshed as the agenda changes.
Regulatory Plan marks the agency’s most significant planned actions, singled out by OIRA in the Regulatory Plan that accompanies this edition.
What changed since the Spring 2025 agenda
Between editions, the EPA added 36 new rules, changed the stage on 74, and dropped 55 from the agenda. The official agenda only shows you today’s snapshot. We keep the history, so you can see what actually moved.
- New this edition. Carbon Tetrachloride (CTC); Amendments to Regulation under the Toxic Substances Control Act (TSCA) (entered the Proposed Rule stage)
- Moved. Airplane Greenhouse Gas Endangerment Finding and Airplane Greenhouse Gas Standards Reconsideration (Proposed Rule to Long-Term)
- Moved. Amendments to the Model Year 2027 and Later Heavy-Duty Highway Engine Criteria Pollutant Program (Long-Term to Proposed Rule)
and 162 more changes this edition, including 55 rules that dropped off the agenda entirely.
Track the EPA agenda freeSignificant, priority, and finalized rules are shown in full below. Routine actions are condensed to a line, with full summaries for every rule on the dashboard.
Slated for a final rule. Several have already published in the Federal Register, which we mark on each; the rest are still pending.
Carbon Pollution Standards Repeal
In April 2024, the EPA issued the Carbon Pollution Standards (CPS), which limited greenhouse gas emissions from new and existing fossil fuel-fired power plants. The CPS directed states to set standards of performance for existing fossil fuel-fired steam generating power plants and further tightened New Source Performance Standards first issued in 2015. In June of 2025, the EPA proposed to repeal all GHG emissions standards for fossil fuel-fired power plants. With that action, EPA proposed to make a finding that GHG emissions from fossil fuel-fired power plants do not contribute significantly to dangerous air pollution. The EPA also proposed, as an alternative, to repeal a narrower set of requirements that includes the emission guidelines for existing fossil fuel-fired steam generating units, the carbon capture and sequestration/storage (CCS)-based standards for coal-fired steam generating units undertaking a large modification, and the CCS-based standards for new base load stationary combustion turbines.
Status: Proposed rule published on June 17, 2025
Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From Electric Utilities; Revision of an Alternative Closure Requirement Deadline
This action proposes to extend one compliance deadline applicable to certain impoundments currently operating pursuant to 40 CFR 257.103(f)(2). Specifically, EPA is proposing to extend the deadline to complete closure of coal combustion residuals (CCR) surface impoundments larger than 40 acres from October 17, 2028, to October 17, 2031. This deadline extension will promote electric grid reliability by accommodating certain coal-fired boilers operating beyond the currently scheduled retirement date.
Status: Proposed rule published on January 7, 2026
N-Methylpyrrolidone (NMP); Regulation under the Toxic Substances Control Act (TSCA)
EPA is developing a final rule under the Toxic Substances Control Act (TSCA) to address the unreasonable risk of injury to human health presented by n-methylpyrrolidone (NMP). EPA proposed this rule on June 14, 2024. NMP is a widely used solvent in a variety of industrial, commercial, and consumer applications including the manufacture and production of electronics such as semiconductors, polymers, petrochemical products, paints and coatings, and paint and coating removers. EPA determined that NMP presents an unreasonable risk of injury to health due to the significant adverse health effects associated with exposure to NMP, including developmental post-implantation fetal loss from short-term exposure and reduced fertility and fecundity from long-term exposure. 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. EPA is developing a final rule to address the identified unreasonable risk. EPA proposed requirements to: prohibit the manufacture (including import), processing, and distribution in commerce and use of NMP in several occupational conditions of use; require worker protections through an NMP workplace chemical protection program (WCPP) or prescriptive controls (including concentration limits) for most of the occupational conditions of use; require concentration limits on a consumer product; regulate certain consumer products to prevent commercial use; and establish recordkeeping, labeling, and downstream notification requirements. The Agency's development of this rule incorporated significant stakeholder outreach and public participation. EPA's 2020 final risk evaluation for NMP, describing its conditions of use is in docket EPA-HQ-OPPT-2019-0236, with the 2022 revised unreasonable risk determination and additional materials in docket EPA-HQ-OPPT-2016-0743.
Status: Proposed rule published on June 14, 2024
Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) Data Reporting and Recordkeeping under the Toxic Substances Control Act (TSCA); Revision to Regulation
The EPA is considering a proposed rule to amendments to the Toxic Substances Control Act (TSCA) regulation for reporting and recordkeeping requirements for perfluoroalkyl and polyfluoroalkyl substances (PFAS). As promulgated in October 2023, the regulation requires manufacturers (including importers) of PFAS in any year between 2011-2022 to report certain data to EPA related to exposure and environmental and health effects. EPA plans to propose the incorporation of certain exemptions and other modifications to the scope of the reporting rule.
Status: Proposed rule published on November 13, 2025
Phasedown of Hydrofluorocarbons: Reconsideration of Certain Regulatory Requirements Under the Technology Transitions Provisions of the American Innovation and Manufacturing Act of 2020
The EPA received administrative petitions and other requests to reconsider certain provisions of the 2023 Technology Transitions final rule (88 FR 73098) established under subsection (i) of the American Innovation and Manufacturing (AIM) Act. On October 03, 2025, the EPA issued a proposed rule to address those administrative petitions and other requests from companies and trade associations across a number of subsectors and types of equipment, including intermodal refrigerated transport, industrial process refrigeration and chillers for industrial process refrigeration used in semiconductor manufacturing, retail food refrigeration systems for remote condensing units and supermarkets, cold storage warehouses, refrigerated centrifuges, laboratory shakers, and residential and light commercial air conditioning and heat pump systems. The EPA held a public hearing on October 20, 2025. The public comment period closed on November 21, 2025.
Status: Final rule published in the Federal Register on May 26, 2026
Reconsideration of the Greenhouse Gas Reporting Program
The Greenhouse Gas Reporting Program (GHGRP, 40 CFR part 98) requires reporting of greenhouse gas (GHG) data and other relevant information from certain large GHG emission sources, fuel and industrial gas suppliers, and CO2 injection sites in the U.S. A total of 47 industrial sectors are required to report under the GHGRP, including more than 8,000 facilities. On September 12, 2025, the EPA proposed a rule to remove the obligations of the GHGRP for most source categories, including the distribution segment of the petroleum and natural gas systems source category (Subpart W). The EPA also proposed to suspend reporting obligations for the remaining subpart W segments until 2034. This action will finalize the EPA's reconsideration of the GHGRP.
Status: Final rule published in the Federal Register on February 27, 2026
Congressional Review Act Revocation of National Emission Standards for Hazardous Air Pollutants: Rubber Tire Manufacturing
Congress has passed, and the President has signed a joint resolution of disapproval under the Congressional Review Act (CRA) of the final rule titled National Emission Standards for Hazardous Air Pollutants: Rubber Tire Manufacturing ("2024 Rubber Tire Rule"). The 2024 Rubber Tire Rule implemented emissions standards for the rubber processing subcategory. Under the joint resolution and by operation of the CRA, the 2024 Rubber Tire Rule now has no legal force or effect. Because the rule has been nullified, this action will remove it from the Code of Federal Regulations.
Status: Final rule published in the Federal Register on June 22, 2026
Implementing Statutory Addition of Certain Per- and Polyfluoroalkyl Substances (PFAS) to the Toxics Release Inventory for Reporting Year 2026
Section 7321 of the National Defense Authorization Act for Fiscal Year 2020 (NDAA) provides a framework for per- and polyfluoroalkyl substances (PFAS) to be added automatically to the Toxics Release Inventory (TRI) list on January 1 of the year following certain EPA actions. This regulatory action amends the Emergency Planning and Community Right-to-Know Act (EPCRA) regulations in 40 CFR part 372 to reflect this statutory addition. Each year since 2020, EPA has promulgated a conforming final rule to amend the codified TRI chemical list to reflect the automatic additions of PFAS from the previous year's actions.
Status: Final rule published in the Federal Register on February 27, 2026
National Emission Standards for Hazardous Air Pollutants from Hazardous Waste Combustors Risk and Technology Review
This action will address the EPA's risk and technology review (RTR) of the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Hazardous Waste Combustors (HWC NESHAP). The HWC NESHAP, 40 CFR part 63, subpart EEE, was promulgated pursuant to Clean Air Act (CAA) section 112(d); the EPA finalized the current standards in October 2005 (70 FR 59402, October 12, 2005). The NESHAP established emission limitations and work practice requirements based on maximum achievable control technology (MACT) for controlling emissions of hazardous air pollutants (HAP). The HAP emitted from HWCs include metal HAP, volatile organic HAP, polycyclic organic material, and halogen acids. This action will implement the risk review requirements of CAA section 112(f)(2) and the technology review requirements of CAA section 112(d)(6). The statute directs the EPA to promulgate emission standards under CAA section 112(f)(2) if such standards are required to provide an ample margin of safety to protect public health or to prevent, taking relevant factors into account, an adverse environmental effect. Any such standards are to be promulgated within 8 years after promulgation of MACT standards under CAA section 112(d). CAA section 112(d)(6) requires the EPA to review and revise the MACT standards as necessary, taking into account developments in practices, processes and control technologies, no less often than every 8 years. The EPA has a deadline for final rulemaking action to be completed by December 31, 2025, Blue Ridge Environmental Defense Fund et al. v. EPA, No. 1:22-03134 (D.D.C. 2022).
Status: Final rule published in the Federal Register on June 3, 2026
National Emission Standards for Hazardous Air Pollutants: Plywood and Composite Wood Products
The EPA published a risk and technology review (RTR) of the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Plywood and Composite Wood Products (PCWP), (40 CFR part 63, subpart DDDD) on August 13, 2020 (85 FR 49434). PCWP facilities include lumber, plywood, particleboard, medium density fiberboard, hardboard, (structural) fiberboard, oriented strand board (OSB), and engineered wood product manufacturing processes. In a decision issued April 21, 2020, the D.C. Circuit, Blue Ridge Envtl Defense League, et al. v. Regan, Case No. 1:16-cv-364-CRC (D. D.C.), held that the EPA has an obligation to address unregulated emissions from a source category when the Agency conducts the eight-year technology review under Clean Air Act (CAA) section 112(d)(6). These amendments will define the maximum achievable control technology standards for unregulated hazardous air pollutant emissions within the PCWP source category according to the provisions of the CAA. The amendments were proposed on May 18, 2023 (88 FR 31856). The EPA is under a court-ordered deadline for signature of the final rule by June 30, 2026.
Status: Final rule published in the Federal Register on July 6, 2026
National Oil and Hazardous Substances Pollution Contingency Plan; Extension of Transition Period for New Product Schedule Listing
The EPA is taking interim final action to revise the transition date in recent amendments to the requirements in Subpart J of the National Oil and Hazardous Substances Pollution Contingency Plan (NCP) that govern the use of dispersants, other chemicals and other spill mitigating substances when responding to oil discharges into jurisdictional waters of the United States (June 12, 2023, 88 FR 38280). Specifically, the EPA is revising the date until which products listed on the current NCP Product Schedule will remain conditionally listed and available for use, from December 12, 2025, to June 10, 2026, for certain agent categories for which there are no new products listed as of December 12, 2025, in accordance with recently amended testing and listing criteria.
Status: Final rule published in the Federal Register on November 17, 2025
Procedures for Chemical Risk Evaluation Under the Toxic Substances Control Act (TSCA)
On September 23, 2025, EPA proposed to amend the procedural framework rule for conducting existing chemical risk evaluations under the Toxic Substances Control Act (TSCA). When conducting an existing chemical risk evaluation under TSCA, EPA must determine whether a chemical substance presents an unreasonable risk of injury to health or the environment, without consideration of costs or non-risk factors, including unreasonable risk to a potentially exposed or susceptible subpopulation identified as relevant to the risk evaluation, under the conditions of use. In this action, EPA proposed to rescind or revise certain 2024 amendments to the procedural framework rule to effectuate the best reading of the statute and ensure that the procedural framework rule does not impede the timely completion of risk evaluations or impair the effective and efficient protection of health and the environment. After considering public comments, EPA intends to promulgate a final rule in 2026.
Status: Proposed rule published on September 23, 2025
Updated Definition of "Waters of the United States"
The EPA and the Department of the Army are undertaking a rulemaking to revise key topics of the waters of the United States definition considering the Supreme Court's decision in Sackett v. Environmental Protection Agency, 598 U.S. 651 (2023), including continuous surface connection, relatively permanent, and jurisdictional versus non-jurisdictional ditches. These revisions focus on clarity, simplicity, and improvements that will stand the test of time.
Status: Proposed rule published on November 20, 2025
Updating the Water Quality Certification Rule
Under Clean Water Act section 401, a federal agency may not issue a license or permit to conduct any activity that may result in a discharge into a water of the United States unless a section 401 water quality certification is issued, or certification is waived by a state or authorized Tribe. The EPA last promulgated regulations on CWA section 401 in 2023, including regulatory text addressing the scope of certification. This action will address implementation challenges and clarify regulatory uncertainty associated with the 2023 Rule, including the scope of certification. This action will increase transparency, efficiency, and predictability for co-regulators and the regulated community.
Status: Proposed rule published on January 15, 2026
Other actions in this stage
Rules open for, or headed toward, public comment.
Accidental Release Prevention Requirements: Risk Management Programs Under the Clean Air Act; Common Sense Approach to Chemical Accident Prevention
The EPA is undertaking a rulemaking to amend its Risk Management Program (RMP) regulations by making several proposed changes to the 2024 Safer Communities by Chemical Accident Prevention rule. The proposed amendments will seek to improve chemical process safety by avoiding duplicative requirements, realigning RMP requirements with Occupational Safety and Health Administration (OSHA) Process Safety Management requirements, and eliminating unnecessary burdens placed on facilities where there is not specific data available to show that the current RMP standards would reduce or have reduced the number of accidental releases.
Status: Proposed rule published on April 2, 2026
Additional Reconsideration of Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review
On March 8, 2024, the EPA finalized New Source Performance Standards (NSPS) regulating greenhouse gases (GHG) and volatile organic compounds emissions from the Crude Oil and Natural Gas source category pursuant to the Clean Air Act (CAA). The EPA also finalized Emission Guidelines under the CAA for states to follow in developing, submitting, and implementing state plans to establish performance standards to limit GHG emissions from existing sources (designated facilities) in the Crude Oil and Natural Gas source category. On March 12, 2025, the EPA Administrator announced the Agency will undertake reconsideration of 40 CFR part 60, subparts OOOOb and OOOOc.
Agenda status: Final Rule (planned)
Amendments to the Model Year 2027 and Later Heavy-Duty Highway Engine Criteria Pollutant Program
Consistent with Administrator Zeldin's March 12, 2025, announcement, the EPA will initiate a rulemaking to reconsider the criteria pollutant standards program established in the January 2023 final rule titled Control of Air Pollution from New Motor Vehicles: Heavy-Duty Engine and Vehicle Standards (88 FR 4296; January 24, 2023).
Status: Proposed rule published on July 14, 2026
Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals from Electric Utilities; Legacy/ CCRMU Amendments
On May 8, 2024, EPA published the Legacy CCR Surface Impoundments rule (Legacy Rule). The final rule went into effect November 8, 2024. The Legacy Rule established requirements for the safe disposal of CCR in a new type of regulated CCR unit – legacy surface impoundments (SIs). It also established requirements for CCR management units (CCRMU) to address the risks from previously unregulated solid waste management of CCR that involves the direct placement of CCR on the land at CCR facilities. This new rule will address needed corrections and consider additional methods of closure, alternative points of compliance, and other possible changes to the federal CCR rules. In addition, this action will address the definition of CCR beneficial use, taking into consideration public comments received on the 2019 CCR beneficial use proposal and the 2020 Notice of Data Availability on CCR beneficial use.
Status: Proposed rule published on June 12, 2026
National Emission Standards for Hazardous Air Pollutants: Ethylene Oxide Emissions Standards for Sterilization Facilities Residual Risk and Technology Review, Reconsideration
On April 5, 2024, the EPA published the risk and technology review (RTR) of the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Commercial Ethylene Oxide (EtO) Sterilization Facilities (89 FR 73293). The EPA announced on March 12, 2025 that this rule will be prioritized for reconsideration.
Status: Proposed rule published on May 1, 2026
National Emission Standards for Hazardous Air Pollutants: Taconite Iron Ore Processing Reconsideration
The final rule National Emission Standards for Hazardous Air Pollutants: Taconite Iron Ore Processing was promulgated on March 6, 2024 (89 FR 16408) The final rule established emission limits for mercury, hydrogen chloride, and hydrogen fluoride. The EPA has identified certain items in that final rule for reconsideration, which this action will address.
Agenda status: Final Rule (planned)
Revision of Tier 4 Phase-in Schedule for Light-Duty and Medium-Duty Vehicles
Consistent with Administrator Zeldin's March 12, 2025, announcement, the EPA will initiate a rulemaking to reconsider the phase-in of the criteria pollutant standards established in the April 2024 multi-pollutant standards rule for Model Years 2027 and later for light-duty and medium-duty vehicles (89 FR 27842; April 18, 2024).
Status: Proposed rule published on May 18, 2026
Steam Electric Effluent Limitations Guideline Reconsideration Rule
To stave off unwarranted power plant retirement decisions and maintain abundant and affordable electricity supply in a time of rising demand, the EPA is considering revising some of the existing requirements in the effluent limitations guidelines and standards for the Steam Electric Generating Point Source Category promulgated in 2024. The EPA intends that this rulemaking would potentially revise the limitations in the subcategory for discharges of unmanaged combustion residual leachate. The rulemaking may also seek to revise the technology bases for the 2024 rules zero-discharge limitations and standards, as well as re-evaluate existing compliance pathways.
Status: Proposed rule published on May 18, 2026
Carbon Tetrachloride (CTC); Amendments to Regulation under the Toxic Substances Control Act (TSCA)
EPA is considering amendments to certain aspects of the December 2024 Toxic Substances Control Act (TSCA) section 6(a) rule addressing the unreasonable risk presented by carbon tetrachloride (CTC). EPA is initiating a rulemaking to amend previously promulgated provisions to address this unreasonable risk. EPA will solicit public comment on potential amendments through a notice of proposed rulemaking. Section 6 of TSCA requires EPA to address any unreasonable risk that the Administrator has determined is presented by a chemical substance under the conditions of use. Following a risk evaluation carried out under the authority of TSCA section 6(b), EPA determined that CTC presents an unreasonable risk of injury to health. EPA's risk evaluation, describing the conditions of use and presenting EPAs determinations of unreasonable risk, is in docket EPA-HQ-OPPT-2019-0499, with the 2022 revised risk determination and additional information in docket EPA-HQ-OPPT-2016-0733. EPA's final rule, Carbon Tetrachloride (CTC); Regulation Under the Toxic Substances Control Act (TSCA), published on December 18, 2024, and is in docket EPA-HQ-OPPT-2020-0592.
Agenda status: Final Rule (planned)
Clean Water Act Effluent Limitations Guidelines and Standards for PFAS Manufacturers Under the Organic Chemicals, Plastics and Synthetic Fibers Point Source Category
As announced in the Effluent Guidelines Program Plan 15, the EPA is revising the existing Organic Chemicals, Plastics, and Synthetic Fibers Effluent Limitations Guidelines and Standards (40 CFR part 414) to address per- and polyfluoroalkyl substances discharges from facilities manufacturing PFAS.
Status: Proposed rule published on March 17, 2021
Extending the Reporting Deadline Under the Greenhouse Gas Reporting Rule
The EPA is extending the reporting deadline under the Greenhouse Gas Reporting Rule for reporting year 2025 data. This rule only changes the reporting deadline for annual greenhouse gas reports for reporting year 2025 and makes no other changes to the rule.
Status: Final rule published in the Federal Register on June 5, 2026
Extension for Toxic Substances Control Act (TSCA) And TSCA Section 8(D) Health And Safety Data Reporting
The Environmental Protection Agency is proposing to extend the reporting deadline for the Toxic Substances Control Act (TSCA) Health and Safety Data Reporting Rule. EPA is seeking public comment on the proposed action, including any considerations or concerns that stakeholders may have regarding the proposed extension of the reporting deadline. The proposed extension is intended to delay the compliance burdens associated with the one-time reporting rule while EPA considers potential modifications to the regulation and to make consequent changes to the electronic reporting application in EPA's Central Data Exchange (CDX) necessary to collect the required information.
Status: Final rule published in the Federal Register on May 22, 2026
Formaldehyde; Regulation under the Toxic Substances Control Act (TSCA)
This rulemaking will address the unreasonable risk of injury to health from formaldehyde. Section 6(a) of the Toxic Substances Control Act (TSCA) requires that EPA, when it determines in a TSCA risk evaluation that a chemical substance presents unreasonable risk of injury to health or the environment, apply one or more requirements under TSCA section 6(a) by rule to the extent necessary so the chemical substance no longer presents unreasonable risk. EPA's final risk evaluation for formaldehyde, describing formaldehyde's conditions of use and presenting EPA's determination of unreasonable risk is in docket EPA-HQ-OPPT-2018-0438, with additional information including the draft risk evaluation and public comments received in docket EPA-HQ-OPPT-2023-0613.
Agenda status: Final Rule (planned)
Interstate Transport Plan Review for the 2015 Ozone NAAQS – Phase 2
The EPA is revisiting previous actions proposing or finalizing the disapproval or partial disapproval of certain State Implementation Plans and finalizing Federal Implementation Plans (FIPs) addressing states' interstate transport obligations under the 2015 ozone National Ambient Air Quality Standards (NAAQS). This proposed rule is designed to comport with Kentucky v. EPA, 123 F.4th 447 (6th Cir. 2024) and Texas v. EPA, 132 F.4th 808 (5th Cir. 2025).
Agenda status: Final Rule (planned)
Laboratory Requirements under the Toxic Substances Control Act
EPA is considering a TSCA section 6(a) rule to address the unreasonable risk presented by laboratory use of chemicals that have undergone a TSCA risk evaluation. Laboratories perform important functions such conducting environmental monitoring needed for cleanup sites and wastewater treatment. Section 6 of TSCA requires EPA to regulate to the extent necessary a chemical substance that the Administrator has determined presents unreasonable risk under the conditions of use, which will almost always include use as a laboratory chemical. EPA is initiating a rulemaking so that the requirements for laboratories are consistent for all chemicals evaluated under TSCA section 6. EPA intends to consider the existing Occupational Safety and Health Administration (OSHA) standards, including OSHA's laboratory standard, during the development of this rule to avoid conflicting or duplicative regulation. EPA will solicit public comment through a notice of proposed rulemaking.
Status: Final rule published in the Federal Register on June 23, 2023
National Emission Standards for Hazardous Air Pollutants: Lime Manufacturing Technology Review Reconsideration
This action addresses the EPA's decision to grant reconsideration of the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Lime Manufacturing in response to a petition for reconsideration.
Agenda status: Final Rule (planned)
Perchloroethylene (PCE); Amendments to Regulation Under the Toxic Substances Control Act (TSCA)
EPA is considering amendments to certain aspects of the December 2024 Toxic Substances Control Act (TSCA) section 6(a) rule addressing the unreasonable risk presented by perchloroethylene (PCE). Section 6 of TSCA requires EPA to address any unreasonable risk that the Administrator has determined is presented by a chemical substance under the conditions of use. Following a risk evaluation carried out under the authority of TSCA section 6(b), EPA determined that PCE presents an unreasonable risk of injury to health. EPA is initiating a rulemaking to amend previously promulgated provisions to address this unreasonable risk as appropriate. EPA will solicit public comment on potential amendments through a notice of proposed rulemaking. EPA's risk evaluation, describing the conditions of use and presenting EPA's determinations of unreasonable risk, is in docket EPA-HQ-OPPT-2019-0502, with the 2022 revised risk determination and additional information in docket EPA-HQ-OPPT-2016-0732. EPAs final rule, Perchloroethylene (PCE); Regulation Under the Toxic Substances Control Act (TSCA), published on December 18, 2024, and is in docket EPA-HQ-OPPT-2020-0720.
Agenda status: Final Rule (planned)
Rescission of Regulatory Determinations and Removal of Related Provisions for Four PFAS Substances (PFHxS, PFNA, HFPO-DA (GenX), and the mixture of these three PFAS plus PFBS)
The EPA intends to propose to rescind its regulatory determinations to regulate four per- and polyfluoroalkyl substances (PFAS) perfluorohexane sulfonic acid (PFHxS), perfluorononanoic acid (PFNA), hexafluoropropylene oxide dimer acid and its ammonium salt (HFPO-DA, commonly known as GenX), and the mixture of these three PFAS plus perfluorobutane sulfonic acid (PFBS) under the Safe Drinking Water Act. The EPA also intends to propose to rescind all associated regulatory provisions associated with the Final PFAS NPDWR (89 FR 32532) currently codified in 40 CFR part 141 and 142 exclusive to these PFAS that were promulgated pursuant to the regulatory determinations that EPA is now proposing to rescind.
Status: Proposed rule published on May 20, 2026
Response to Petition for Site-Specific Variance for Elemental Mercury Wastes (D009 and U151) Under the Land Disposal Restrictions
EPA is considering establishing an alternative treatment standard for high-concentration mercury wastes. The Agency is reviewing Republic Services' petition for a Land Disposal Restrictions (LDR) treatment variance that would allow it to stabilize elemental mercury extracted from high-level mercury-containing wastes through a process of conversion to mercuric sulfide followed by encapsulation and monofill disposal. To approve the petition, EPA will go through a notice and comment process and issue a variance from the LDR regulations.
Status: Final rule published in the Federal Register on June 26, 2026
Revision of Criteria Pollutant and Air Toxics Standards for Light-duty and Medium-duty Vehicles for Model Years 2029 and Later
Consistent with Administrator Zeldin's March 12, 2025, announcement, EPA will initiate a rulemaking to reconsider the Tier 4 light- and medium-duty criteria pollutant and air toxics standards established in the April 2024 multi-pollutant standards rule, applicable to Model Years 2029 and later.
Agenda status: NPRM (planned)
Revision to “Begin Actual Construction” in the New Source Review Preconstruction Permitting Program
The EPA is proposing to revise the New Source Review (NSR) preconstruction permitting program's definition of begin actual construction. The EPAs proposed definition will address which physical on-site construction activities an owner or operator may, prior to obtaining an NSR permit, lawfully undertake that would not constitute construction activities on a stationary source. This action is intended to provide additional flexibility and clarity for owners or operators to engage in construction on non-emitting structures and equipment before an NSR permit is issued.
Status: Proposed rule published on May 13, 2026
Technical Amendments to the EPCRA Hazardous Chemical Inventory Reporting Requirements to Conform to the 2024 OSHA Hazard Communication Standard
Through this action, the Agency will modify the hazard categories and adjust the use of terminology within 40 CFR part 370 to conform with the 2012 and 2024 amendments to the OSHA Hazard Communication Standard (HCS) [77 FR 17574; March 26, 2012 and 89 FR 44144; May 20, 2024] which conform to the United Nations Harmonized System of Classification and Labelling of Chemicals [89 FR 44144; May 20, 2024]. The hazard categories will be adjusted to conform with the HCS 2024. The use of the term Material Safety Data Sheet (MSDS) will be replaced with the term Safety Data Sheet (SDS) to conform with the 2012 HCS. The Agency also intends to make minor plain language, clarifying, and consistency corrections.
Status: Final rule published in the Federal Register on June 22, 2026
Trichloroethylene (TCE); Amendments to Regulation Under the Toxic Substances Control Act (TSCA)
EPA is considering amendments to certain aspects of the December 2024 Toxic Substances Control Act (TSCA) section 6(a) rule addressing the unreasonable risk presented by trichloroethylene (TCE). Section 6 of TSCA requires EPA to address any unreasonable risk that the Administrator has determined is presented by a chemical substance under the conditions of use. Following a risk evaluation carried out under the authority of TSCA section 6(b), EPA has determined that TCE presents an unreasonable risk of injury to health. EPA is initiating a rulemaking to amend previously promulgated provisions to address this unreasonable risk as appropriate. EPA will solicit public comment on potential amendments through a notice of proposed rulemaking. EPA's risk evaluation, describing the conditions of use and presenting EPA's determinations of unreasonable risk, is in docket EPA-HQ-OPPT-2019-0500, with additional information in docket EPA-HQ-OPPT-2016-0737. EPA's final rule, Trichloroethylene (TCE); Regulation Under the Toxic Substances Control Act (TSCA), published on December 17, 2024, and is in docket EPA-HQ-OPPT-2020-0642.
Agenda status: Final Rule (planned)
Other actions in this stage
Early-stage actions: reviews and advance notices that come before a formal proposal.
On the agenda, but not expected to move within the next 12 months.
National Primary Drinking Water Regulation for Perchlorate
The EPA is developing a National Primary Drinking Water Regulation (NPDWR) for perchlorate under the authority of the Safe Drinking Water Act (SDWA) and as required by a court order. The EPA is obligated to issue a proposed NPDWR for perchlorate by January 2, 2026, and a final regulation by May 21, 2027.
Status: Proposed rule published on January 6, 2026
Revisitation of the 2024 Reconsideration of the National Ambient Air Quality Standards for Particulate Matter
Under the Clean Air Act, the EPA is required to review and, if appropriate, revise the air quality criteria for the primary (health-based) and secondary (welfare-based) National Ambient Air Quality Standards (NAAQS) every five years. The Administrator is revisiting the 2024 decision on the NAAQS for particulate matter.
Agenda status: NPRM (planned)
Airplane Greenhouse Gas Endangerment Finding and Airplane Greenhouse Gas Standards Reconsideration
This proposed rule would reconsider two actions: 1) Finding That Greenhouse Gas Emissions From Aircraft Cause or Contribute to Air Pollution That May Reasonably Be Anticipated To Endanger Public Health and Welfare (81 FR 54422; Aug. 15, 2016), and 2) Control of Air Pollution From Airplanes and Airplane Engines: GHG Emission Standards and Test Procedures (86 FR 2136; Jan. 11, 2021).
Agenda status: NPRM (planned)
Excess Emissions During Periods of Startup, Shutdown, and Malfunction; Partial Withdrawals of Findings of Failure to Submit State Implementation Plan (SIP)
The EPA proposed to take action on withdrawing two of the EPA's previous findings of failure to submit as a result of a 2024 D.C. Circuit Court decision. See, Environ. Comm. Fl. Elect. Power v. EPA, 94 F.4th 77 (D.C. Cir. 2024). The previous findings, made in January 2022 and April 2023, found that multiple states failed to submit State Implementation Plan (SIP) revisions in a timely manner, as required by the Clean Air Act, in response to the 2015 findings of substantial inadequacy for SIP provisions applying to excess emissions during periods of startup, shutdown, and malfunction.
Status: Final rule published in the Federal Register on June 12, 2026
Pesticides; Expansion of Crop Grouping Program
In phases, EPA is revising the pesticide crop grouping regulations to create new crop groupings, add new subgroups, and expand existing crop groups by adding new commodities. The current crop groupings allow EPA to establish pesticide tolerances for multiple related crops based upon data for a representative set of crops. EPA expects these revisions to promote greater use of crop grouping for tolerance-setting purposes and to facilitate the availability of pesticides for minor crop uses. Most recently, EPA is developing the 7th proposed rulemaking in the series. Upon conclusion of the 7th rulemaking in this series, EPA plans to develop one additional rulemaking to address the remaining crop groups.
Status: Final rule published in the Federal Register on September 21, 2022
Other actions in this stage
Actions the agency reports as completed this cycle. The official agenda rule list files these separately from the active pipeline.
Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category – Deadline Extensions
To stave off unwarranted power plant retirement decisions and maintain abundant and affordable electricity supply in a time of rising demand, the EPA published a final rule on December 31, 2025 to extend deadlines in 40 CFR 423.13(g)(4), (k)(4), and (l)(1), promulgated in the 2024 Supplemental Effluent Limitations Guidelines and Standards (ELGs) for the Steam Electric Power Generating Point Source Category (2024 rule), update the transfer provisions at 40 CFR 423.13(o) to allow facilities to switch between compliance alternatives, and create authority in 40 CFR 423.18 for alternative applicability dates and paperwork submission dates, based on site-specific factors. The Agency is also reviewing comments received on the Fall 2025 proposed rule with the intention of further reconsidering Steam Electric ELGs as appropriate.
Status: Final rule published in the Federal Register on January 30, 2026
National Emission Standards for Hazardous Air Pollutants: Integrated Iron and Steel Interim Final Rule-Final Rule
The final rule National Emission Standards for Hazardous Air Pollutants: Integrated Iron and Steel Manufacturing Facilities Technology Review was promulgated on April 3, 2024 (89 FR 23294). This interim final rule revised certain compliance deadlines for standards finalized in the 2024 rulemaking and was published on July 3, 2025 (90 FR 29485).
Status: Final rule published in the Federal Register on July 3, 2025
New Source Performance Standards (NSPS) and Emission Guidelines (EG) for Large Municipal Waste Combustors (MWCs)
This action will address the Standards of Performance for New Stationary Sources and Emission Guidelines for Existing Sources for Large Municipal Waste Combustors promulgated under Clean Air Act (CAA) section 129. The New Source Performance Standards (NSPS), subpart Eb, and the Emission Guidelines (EG), subpart Cb, were first established on December 19, 1995 (60 FR 65387), and amended on May 10, 2006 (71 FR 27324), pursuant to CAA section 129(a)(5), which requires review of these standards every five years. The NSPS and EG established emission limitations based on maximum achievable control technology (MACT) for hazardous air pollutants and criteria pollutants from large municipal waste combustors. The EPA received a petition for reconsideration of the 2006 rulemaking, and in 2007, EPA announced its reconsideration of several aspects of the rule. Additionally, following a challenge to the 2006 rulemaking (Sierra Club v. EPA, No. 06-1250 (D.C. Cir. filed Feb. 15, 2008)), the D.C. Circuit granted EPA a voluntary remand in 2008 for the Agency to re-evaluate the MACT floors established in 1995 based on the D.C. Circuit's decisions in Northeast Maryland Waste Disposal Facility v. EPA, 358 F.3d 936 (D.C. Cir. 2004) and related cases. The EPA proposed updated NSPS and EG for large municipal waste combustors in response to the voluntary remand and pursuant to the five-year review requirement on January 23, 2024 (89 FR 4243). This final rule will respond to the voluntary remand and complete the five-year review of the NSPS and EG pursuant to CAA section 129(a)(5).
Status: Final rule published in the Federal Register on March 10, 2026
Reconsideration of Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review
Following the March 8, 2024, publication of the final rule titled "Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review final rule" (89 FR 16820), the EPA received multiple requests for reconsideration. The March 8, 2024, final action includes New Source Performance Standards to reduce methane and smog-forming volatile organic compounds from new, modified and reconstructed sources. It also includes Emissions Guidelines, which set procedures for states to follow as they develop plans to limit methane from existing sources. On May 6, 2024, the EPA notified petitioners that the Agency is granting reconsideration on two aspects of the final rule: (1) vent gas net heating value monitoring and alternate sampling demonstration requirements for flares and enclosed combustion devices; and (2) temporary flaring provisions for associated gas in certain situations.
Status: Final rule published in the Federal Register on April 9, 2026
Renewable Fuel Standard (RFS) Program: Set 2
Under the Clean Air Act, the EPA is required to determine the applicable volume requirements for the Renewable Fuel Standard (RFS) program for years after those specified in the statute. This action finalizes the applicable volumes and percentage standards for 2026 and 2027 for cellulosic biofuel, biomass-based diesel, advanced biofuel, and total renewable fuel. This action also addresses reallocation of exempted volumes for the 2023 through 2025 compliance years and a projection of exempted volumes for 2026 and 2027 in the context of establishing the percentage standards for those years.
Status: Final rule published in the Federal Register on April 1, 2026
Repeal of Amendments to National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units
In 2024, the EPA issued a risk and technology review for Mercury and Air Toxics Standards (MATS) that updated certain standards for coal- and oil-fired electric generating units (EGUs). Specifically, the rule updated the filterable particulate matter standard (surrogate for the non-mercury hazardous air pollutant metals) for existing coal-fired EGUs, the mercury standard for lignite coal-fired EGUs, and revised the particulate matter compliance demonstration requirements to only allow particulate matter continuous emission monitoring systems. On June 17, 2025, the EPA published a proposal (90 FR 25535) to repeal these changes.
Status: Final rule published in the Federal Register on April 16, 2026
Rescission of The Greenhouse Gas Endangerment Finding and Motor Vehicle Greenhouse Gas Emission Standards Under The Clean Air Act
This action finalizes the rescission of the 2009 Greenhouse Gas (GHG) Endangerment Finding. The Endangerment Finding is a prerequisite for regulating emissions from new motor vehicles and new motor vehicle engines. Absent this finding, the EPA lacks statutory authority under Clean Air Act section 202 to prescribe standards for GHG emissions. Therefore, this action also repeals GHG regulations for light-, medium-, and heavy-duty on-highway vehicles.
Status: Final rule published in the Federal Register on February 18, 2026
Water Quality Standards to Protect Aquatic Life in the Delaware River
On December 1, 2022, the EPA issued an Administrator's Determination under the Clean Water Act that revised water quality standards in certain zones of the Delaware River are necessary to meet the requirements of the Act. Specifically, the EPA determined that a designated use that includes propagation and corresponding protective dissolved oxygen criteria are required to protect sensitive aquatic life including two federally listed species under the Endangered Species Act in zones 3, 4, and upper-5 of the Delaware River. On December 13, 2023, the EPA Administrator signed a proposed rule. The Administrator signed the final rule on September 22, 2025.
Status: Final rule published in the Federal Register on September 29, 2025
Clean Water Act Effluent Limitations Guidelines and Standards for the Meat and Poultry Products Point Source Category
On September 3, 2025, the EPA issued a final action withdrawing the proposed rule entitled Clean Water Act Effluent Limitations Guidelines and Standards for the Meat and Poultry Products Point Source Category, which published in the Federal Register on January 23, 2024. After considering public comments on the proposed rule, the EPA decided not to finalize revised technology-based effluent limitations guidelines (ELGs) or pretreatment standards for the Meat and Poultry Products (MPP) industry, based on exercise of its statutory discretion and judgment that such revisions would not be appropriate.
Status: Final rule published in the Federal Register on September 3, 2025
Commercial and Industrial Solid Waste Incineration Units: Temporary-Use Incinerators and Air Curtain Incinerators Used in Disaster Recovery
The EPA published an interim final rule under Clean Air Act (CAA) section 129 for temporary-use incinerators and air curtain incinerators (ACI) used in disaster recovery and emergencies. This rule exempts certain incinerators and ACIs from complying with CAA section 129 emission standards and associated requirements when they are used temporarily to incinerate debris in areas declared as a State of Emergency by a local or state government or where the President, under the authority of the Stafford Act, has declared that an emergency or a major disaster exists in the area. Under these temporary-use provisions, debris that is combusted is any non-hazardous material that must be the remains of something that was destroyed, broken, or discarded as a result of a disaster or emergency such as a tornado, hurricane, flood, ice storm, high winds, or act of bioterrorism.
Status: Final rule published in the Federal Register on March 19, 2026
Congressional Review Act Revocation of 2024 Review of Final Rule Reclassification of Major Sources as Area Sources Under Section 112 of the Clean Air Act
On June 20, 2025, President Trump signed into law S.J. Res. 31, a joint resolution under the Congressional Review Act (CRA) disapproving the EPA's 2024 rule amending the 2020 Reclassification of Major Sources as Area Sources Under Section 112 of the Clean Air Act (CAA) (MM2A). The 2024 MM2A Rule amended the 2020 MM2A Rule by requiring sources of persistent and bioaccumulative hazardous air pollutants (HAP) listed in CAA section 112(c)(6) to continue to comply with major source emission standards under CAA section 112(d)(2) or standards under CAA section 112(d)(4) even if the sources reclassify as area sources. By the terms of the CRA, the signing into law of the CRA joint resolution of disapproval means that the 2024 MM2A Rule is treated as if it had never taken effect. On January 02, 2026, the EPA issued an interim final rule to remove the 2024 MM2A Rule amendments from the Code of Federal Regulations, so that the regulation as promulgated by the 2020 MM2A Rule will be in effect.
Status: Final rule published in the Federal Register on January 2, 2026
Emissions Budget and Allowance Allocations for Indiana Under the Revised Cross-State Air Pollution Rule Update
This final rule adjusted the Revised Cross-State Air Pollution Rule (CSAPR) Update "budget" for ozone season nitrogen oxides (NOx) emissions from Indiana electricity generating units (EGUs) for 2024 and subsequent years. Relatedly, the rule also adjusted the default unit-level allocations of emission allowances to Indiana EGUs for 2024 and subsequent years in accordance with the adjustments to the state emissions budget. The purpose of these adjustments is to account for decisions by the owners of two Indiana power plants to defer or cancel previously announced retirement plans.
Status: Final rule published in the Federal Register on May 20, 2025
Extension of the State Implementation Plan Due Date for the Regional Haze Third Implementation Period
The EPA is updating the State Implementation Plan (SIP) due date for third implementation period regional haze SIPs. The Clean Air Act does not mandate a specific date by which states must submit SIPs for each of the regional haze implementation periods. Rather, the EPA established the current SIP due date of July 31, 2028, by regulation when the Agency promulgated the Protection of Visibility: Amendments to Requirements for State Plans Rule (82 FR 3078, Jan. 10, 2017). This is an administrative action with the sole purpose of extending a discretionary SIP due date to allow states adequate time to successfully develop SIPs for the third implementation period.
Status: Final rule published in the Federal Register on January 6, 2026
Final Extension of Deadlines in Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review
On March 8, 2024, the EPA finalized New Source Performance Standards (NSPS) regulating greenhouse gases (GHG) and volatile organic compounds emissions from the Crude Oil and Natural Gas source category pursuant to the Clean Air Act (CAA). The EPA also finalized emission guidelines under the CAA for states to follow in developing, submitting, and implementing state plans to establish performance standards to limit GHG emissions from existing sources (designated facilities) in the Crude Oil and Natural Gas source category. On July 31, 2025, the EPA issued an interim final rule extending certain compliance dates and deadlines in the final NSPS and Emission Guidelines. The EPA held a public hearing on September 2, 2025. The public comment period closed October 3, 2025. The EPA finalized this action on December 3, 2025, which further extended certain deadlines and responded to comments received on the interim final rule.
Status: Final rule published in the Federal Register on December 3, 2025
Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals from Electric Utilities; CCR Management Unit Deadline Extension Rule
On May 8, 2024, EPA published the Legacy CCR Surface Impoundments rule (Legacy Rule) in response to the DC Circuit decision in Utility Solid Waste Activities Group, et al. v. EPA, 901 F.3d 414, 432-33 (D.C. Cir. 2018). The final rule went into effect November 8, 2024. This rule established requirements for the safe disposal of Coal Combustion Residuals (CCR) in inactive CCR surface impoundments located at inactive facilities (i.e. legacy SIs). It also established requirements for CCR management units (CCRMU) to address the risks from previously unregulated solid waste management of CCR that involves the direct placement of CCR on the land at CCR facilities. The proposed rule would extend certain deadlines for CCR management units. Specifically, EPA proposed (1) to establish an additional option other than the existing deadline of February 9, 2026, for owners or operators of CCRMU to comply with the facility evaluation report part 1 and (2) to extend the current deadline of May 8, 2028, for owners and operators of CCRMU to comply with the groundwater monitoring requirements.
Status: Final rule published in the Federal Register on February 10, 2026
Methylene Chloride; Regulation Under the Toxic Substances Control Act (TSCA); Compliance Date Extensions
Following promulgation of May 2024 TSCA section 6(a) final rule addressing the unreasonable risk presented by methylene chloride under its conditions of use, non-federally contracted public and private sector laboratories that use methylene chloride have indicated to EPA that there are challenges in implementing the Workplace Chemical Protection Program (WCPP) for methylene chloride. The first general industry deadline for complying with the WCPP requirements for methylene chloride began on May 5, 2025, with full implementation concluding on October 30, 2025. EPA intends to reconsider the rule's requirements for laboratories either through a rulemaking or interpretative guidance. As an interim step, EPA has initiated an action to extend the WCPP deadlines for such laboratories to comply with the WCPP requirements for methylene chloride while also considering whether to adjust the WCPP requirements for methylene chloride as they apply to laboratories.
Status: Final rule published in the Federal Register on November 13, 2025
National Emission Standards for Hazardous Air Pollutants for Coke Ovens: Pushing, Quenching, and Battery Stacks, and Coke Oven Batteries; Final Rule
On July 5, 2024, the EPA published the risk and technology review (RTR) of the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Coke Ovens: Pushing, Quenching, and Battery Stacks, and Coke Oven Batteries (89 FR 55684). This action moves the compliance dates to July 5, 2027, to allow facilities additional time to comply with the rule. The changes addressed in this action do not affect the substantive requirements of the final rule, and do not result in changes to emission reductions or costs. The rule was signed by the administrator and published on July 8, 2025.
Status: Final rule published in the Federal Register on December 5, 2025
National Emission Standards for Hazardous Air Pollutants for the Polyether Polyols Production Industry: Removal of Affirmative Defense
The National Emission Standards for Hazardous Air Pollutants (NESHAP) for the Polyether Polyols Production Industry (PEPO), codified at 40 CFR part 63, subpart PPP, regulates hazardous air pollutant (HAP) emissions from the production of PEPO. On March 27, 2014, the EPA promulgated regulatory provisions for the PEPO NESHAP establishing that owners and operators may assert an affirmative defense to civil penalties for violations caused by malfunctions. On April 18, 2014, the D.C. Circuit Court issued an opinion vacating the portion of the EPA Portland Cement Manufacturing industry, NESHAP that first established an affirmative defense (NRDC v. EPA, 749 F.3d 1055). The court found that the EPA lacked authority to establish an affirmative defense for private civil suits and held that, under the Clean Air Act, the authority to determine civil penalty amounts in such cases lies exclusively with the courts, not the EPA. In light of NRDC, the EPA has been removing such provisions from all NESHAPs that contain an affirmative defense. This action finalized removal of the affirmative defense provisions from the PEPO NESHAP.
Status: Final rule published in the Federal Register on September 2, 2025
National Emission Standards for Hazardous Air Pollutants: Chemical Manufacturing Area Source Technology Review
This action will address the EPA's technology review of the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Chemical Manufacturing Area Sources (CMAS). The CMAS NESHAP, 40 CFR part 63, subpart VVVVVV, was promulgated on October 29, 2009 (74 FR 56008), pursuant to Clean Air Act (CAA) section 112(d) and established emission limitations and work practice requirements for controlling emissions of hazardous air pollutants (HAP). The NESHAP controls HAP emissions from process vents, storage tanks, equipment leaks, wastewater streams, transfer operations, and heat exchange systems. This action addresses the technology review requirements of CAA section 112(d)(6) which require the EPA to review and revise the standards as necessary, taking into account developments in practices, processes and control technologies, no less often than every eight years.
Status: Final rule published in the Federal Register on April 1, 2026
National Emission Standards for Hazardous Air Pollutants: Polyether Polyols Production Industry Review
This action will address the EPA's technology review of the National Emission Standards for Hazardous Air Pollutants (NESHAP) for the Polyether Polyols (PEPO) Production industry (40 CFR part 63 subpart PPP). The PEPO NESHAP was promulgated pursuant to Clean Air Act (CAA) section 112(d) on June 1, 1999 (64 FR 29420), and the EPA conducted its risk and technology review (RTR) of the PEPO NESHAP on March 27, 2014 (79 FR 17340). The PEPO NESHAP applies to major sources and regulates hazardous air pollutant (HAP) emissions resulting from the production of chemical products formed by the reaction of ethylene oxide, propylene oxide or other cyclic ethers with compounds having one or more reactive hydrogens. The HAP emission sources at PEPO production facilities include process vents, storage vessels, equipment leaks, wastewater, and heat exchange systems. The HAP emitted by the facilities producing polyether polyols include, but are not limited to, ethylene oxide, propylene oxide, hexane, and toluene. This final action will implement the technology review requirements of CAA section 112(d)(6). CAA section 112(d)(6) requires the EPA to review and revise the NESHAP as necessary, taking into account developments in practices, processes and control technologies, no less often than every eight years.
Status: Final rule published in the Federal Register on March 18, 2026
National Volatile Organic Compound Emission Standards for Aerosol Coatings
Pursuant to Clean Air Act (CAA) section 183(e), the EPA is required to control volatile organic compound (VOC) emissions from consumer and commercial products to reduce ozone formation and nonattainment of the ozone National Ambient Air Quality Standards. In accordance, on March 24, 2008, the EPA promulgated the aerosol coatings rule (40 CFR part 59, subpart E). The rule employs a reactivity-based approach to address VOC emissions from spray paints. In 2017 and 2020, the EPA received two petitions requesting updates to the national aerosol coatings rule. The petitions asserted that the updates would provide clarity and uniformity with California Air Resources Boards (CARB) aerosol coatings regulation, thereby reducing burden and costs to industry. In response, the EPA amended the aerosol coatings rule. On March 18, 2025, the EPA received a petition for review, reconsideration, and stay of the final rule amendments. In the petition for reconsideration, the petitioners provided additional information supporting the need for additional time for compliance by certain regulated entities. Specifically, the petitioners contend that significant time is required to reformulate, relabel, and communicate with suppliers, customers, and distributors. In this interim final action, the EPA is changing the compliance date for the amendments to the aerosol coatings rule from July 17, 2025, to January 17, 2027.
Status: Final rule published in the Federal Register on July 2, 2025
Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) Data Reporting and Recordkeeping under the Toxic Substances Control Act (TSCA); Change to Submission Period
On May 13, 2025, the Environmental Protection Agency (EPA or Agency) promulgated an interim final rule that amended the data submission period for the Toxic Substances Control Act (TSCA) PFAS reporting rule by changing the start date for submissions and making corresponding changes to the end dates for the submission period, i.e., the data submission period begins on April 13, 2026, and ends on October 13, 2026, with an alternate end date for small manufacturers reporting exclusively as article importers of April 13, 2027. As promulgated in October 2023, the regulation requires manufacturers (including importers) of PFAS in any year between 2011-2022 to report certain data to EPA related to exposure and environmental and health effects. This change wasnecessary because EPA requires more time to prepare the reporting application being developed to collect this data. The Agency is separately considering reopening certain aspects of the rule to public comment (see the separate entry under RIN 2070-AL29). The delayed reporting date ensures that EPA has adequate time to consider the public comments and propose and finalize any modifications to the rule before the submission period begins.
Status: Final rule published in the Federal Register on May 13, 2025
Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) Data Reporting and Recordkeeping Under the Toxic Substances Control Act (TSCA); Extension of Reporting Deadline
The Environmental Protection Agency is finalizing the reporting deadline for the Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) Reporting and Recordkeeping Rule Toxic Substances Control Act (TSCA). This action will delay the compliance burdens associated with the one-time reporting rule.
Status: Final rule published in the Federal Register on April 13, 2026
Phasedown of Hydrofluorocarbons: Review and Renewal of Eligibility for Application-specific Allowances
On August 26, 2025, the EPA published a final rule that continues to implement the phasedown provisions under the American Innovation and Manufacturing (AIM) Act of 2020. The AIM Act identifies six applications that are to receive "the full quantity of [HFC] allowances necessary, based on projected, current, and historical trends" under the allowance allocation program through the end of 2025. The six applications are a propellant in metered dose inhalers, defense sprays, structural composite preformed polyurethane foam for marine use and trailer use, the etching of semiconductor material or wafers and the cleaning of chemical vapor deposition chambers within the semiconductor manufacturing sector, mission-critical military end uses, and onboard aerospace fire suppression. The final rule established renewal decisions for each of the six applications, consistent with the statutory process under AIM subsection (e)(4)(B). Additionally, the EPA established procedures and the timeline for submitting a petition to designate an application as eligible for ASAs, made targeted revisions to the methodology used to allocate allowances to ASA holders for calendar years 2026 and beyond, and made limited revisions to existing requirements.
Status: Final rule published in the Federal Register on August 26, 2025
Stationary Combustion Turbines New Source Performance Standards (NSPS) Technology Review
This action is required by Clean Air Act section 111(b)(1)(B) and responds to a notice of intent to sue filed by Sierra Club and Environmental Defense Fund. The terms of a consent decree established a deadline of November 12, 2025, for signature of a final rule. The consent decree deadline for final rule signature received an extension to January 9, 2026. On December 13, 2024, the EPA published proposed amendments to the New Source Performance Standards (NSPS) under 40 CFR part 60, subpart KKKKa based on the findings of this technology review that included an analysis of criteria pollutant emissions from stationary combustion turbines and available control technologies. The technology review proposed post-combustion selective catalytic reduction (SCR) to be the best system of emission reduction (BSER) for limiting nitrogen oxide (NOx) emissions from most new sources in this category whether firing natural gas or non-natural gas fuels. The EPA did not propose to amend the standards for sulfur dioxide (SO2) and did not propose to set standards for additional criteria pollutants.
Status: Final rule published in the Federal Register on January 15, 2026
Trichloroethylene; Regulation Under the Toxic Substances Control Act (TSCA); Compliance Date Extension
On September 17, 2025, the Environmental Protection Agency (EPA or Agency) published an interim final rule addressing the Regulation of Trichloroethylene (TCE) under the Toxic Substances Control Act (TSCA) to revise certain compliance deadlines finalized in 2024. Specifically, EPA amended the prohibition compliance date for the use of TCE as a processing aid in the manufacture of nuclear fuel, with corresponding changes to the compliance dates for the manufacturing, processing and distribution in commerce of TCE to support such use, to a prohibition on September 15, 2028. EPA also amended the prohibition compliance date for the disposal of TCE to wastewater by processors of TCE and processors and industrial and commercial users of TCE as a processing aid, to begin on December 18, 2026. EPA also amended the compliance deadline for downstream notification, and the text required to be present in Safety Data Sheets, to accurately reflect the new prohibition compliance deadline for TCE used as a processing aid in the manufacture of nuclear fuel. EPA amended this compliance deadline to allow for 90 days after the publication of the interim final rule for manufacturers, processors, and distributors in commerce of TCE to make such a change. These revisions are necessary to address new information presented to EPA about inadvertent oversights in the original rulemaking and serious concerns that the facilities at issue will be unable to comply with the relevant requirements by the existing deadlines. EPA requested comments on all aspects of this interim final rule and will consider all comments received in determining whether amendments to this rule are appropriate after the conclusion of the comment period.
Status: Final rule published in the Federal Register on September 17, 2025
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Create a free accountCompiled from the 2026 Regulatory Plan and Unified Agenda (reginfo.gov), cross-referenced against Federal Register publications. Regulation Roundup tracks all 214 EPA actions and refreshes as the agenda changes.