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Home > Focus Areas > Legislation, Regulation and Litigation > Rulemakings

Rulemakings

Office of Wastewater Management (OWM)

TitleDescriptionKey DatesACWA Staff Contact
Section 402/404 Negligence StandardStates can seek approval to administer the 402 (NPDES) program and can assume the dredge and fill activities under 404(g). EPA is considering regulations to clarify the criminal intent standard applicable to state and tribal CWA 402 and 404(g) programs when administering those programs.

|https://www.regulations.gov/docket/EPA-HQ-OW-2020-0517
  • NPRM Comment Period: Ended January 14, 2021

  • Final Rule Publication Date: June, 2025
Sean Rolland
Market-Based Approaches under the NPDES ProgramEPA supports market-based mechanisms to accomplish its mission to protect human health and the environment. Market-based mechanisms include water quality trading under the Clean Water Act (CWA), an approach that promotes water quality improvements at lower cost than more traditional regulatory approaches. The Agency has long interpreted the CWA to allow pollutant reductions from water quality trading and offsets to achieve compliance with CWA regulatory requirements. EPA is proposing a regulation to clarify how water quality trading and other market-based approaches may be used by NPDES permitting authorities in permits to meet applicable water quality standards.
  • NPRM Publication Date: March, 2025
  • Final Rule Publication Date: November, 2025
Sean Rolland
Peak Flows Management Wet weather events (e.g., rain, snowmelt) can affect operations at publicly owned treatment works (POTWs) when excess water enters the wastewater collection system. Large wet weather events can exceed the POTW treatment plant's capacity to provide the same type of treatment for all incoming wastewater. POTWs need flexibility to manage and treat peak flows under wet weather conditions to ensure efficient treatment plant operation while protecting public health. EPA is currently exploring permitting approaches to allow flexibility for more resilient and adaptable solutions for managing peak flows.
  • NPRM Publication Date: TBD
  • Final Rule Publication Date: TBD
Sean Rolland
PFAS Requirements in NPDES ApplicationsBased on limited compliance data, EPA has determined that currently less than 1% of facilities covered by an NPDES permit contain any PFAS related requirements such as monitoring, best management practices and/or effluent limits, resulting in the need to require permit applicants with PFAS in their discharges to notify the permitting authority prior to permit issuance to protect public health and the environment. This proposed rulemaking seeks to update requirements for several of the existing NPDES permit applications to address monitoring and/or reporting of PFAS.
  • NPRM Publication Date: June, 2025
  • Final Rule Publication Date: December, 2026
Sean Rolland
Corrections to the National Pollutant Discharge Elimination System (NPDES) Regulations This action would provide several minor but necessary corrections to the NPDES regulations to update obsolete or incorrect language or correct cross-referenced citations. The Agency has become aware of several instances where cross-referencing has not occurred correctly, leading to potential confusion regarding which regulatory provisions apply. In addition, the EPA has become aware of inadvertent deletions or typographical errors in the NPDES regulations that should be corrected.
  • Direct Final: February, 2025
Sean Rolland

Office of Wetlands, Oceans and Watersheds (OWOW)

TitleDescriptionKey DatesACWA Staff Contact
Revised Definition of Waters of the United States - Conforming Rule
On August 29, 2023, EPA and USACE issued a final rule that amends the “Revised Definition of Waters of the United States” – which was finalized earlier in 2023 - to conform key aspects of the regulatory text to the U.S. Supreme Court’s May 25, 2023 decision in Sackett v. EPA. The new final conforming rule, “Revised Definition of ‘Waters of the United States’; Conforming,” was published in the Federal Register and effective on September 8, 2023.

EPA Link: Revising the Definition of Waters of the United States

RIN: 2040-AG32
  • Final Rule: September 8, 2023 (88 FR 61969)
  • Final Rule Effective: September 8, 2023
    Ward Scott
    2024 Clean Water Act Section 404 Tribal and State Assumption Program RuleOn December 18, 2024, EPA published the final rule for the CWA Tribal and State Assumption Program. This rule is effective on January 17, 2025. The comprehensive update to the program’s regulations is intended to update and clarify the requirements and procedures for Clean Water Act Section 404 program assumption, making administration and oversight more straightforward and transparent.

    EPA Link: Final 2024 CWA Section 404(g) Tribal and State Assumption Program

    RIN: 2040-AF83
    • NPRM: August 14, 2023 (88 FR 55276)
    • Comment Period End: October 13, 2023
    • Final Rule: December 18, 2024 (89 FR 103454)
    • Final Rule Effective: January 17, 2025


    Ward Scott
    Clean Water Act Section 401 Water Quality Certification Improvement RuleOn November 27, 2023, the Clean Water Act Section 401 Water Quality Certification Improvement Rule became effective.  EPA first implemented regulations for water quality certification in 1971, which remained in effect until the Agency finalized the 2020 CWA Section 401 Certification Rule (2020 Rule). President Biden’s Executive Order 13990 required EPA to review and, as appropriate and consistent with applicable law, take action to revise or replace the 2020 Rule. Following this review, the Agency announced its intention to revise the 2020 Rule to better uphold the role of states, territories, and Tribes under section 401.

    EPA Link: Final 2023 CWA Sec. 401 Water Quality Certification Improvement Rule

    RIN: 2040-AG12
    • ANPRM: June 2, 2021 (88 FR 29541)
    • NPRM: June 9, 2022 (87 FR 35318)
    • Comment Period End: August 8, 2022
    • Final Rule: September 27, 2023 (88 FR 66558)
    • Final Rule Effective: November 27, 2023
      Ward Scott
      Vessel Incidental Discharge National Standards of Performance On December 4, 2018, the Vessel Incidental Discharge Act was signed into law establishing a new framework for the regulation of discharges incidental to the normal operation of vessels. Under the VIDA, the Environmental Protection Agency is responsible for developing national performance standards for discharges from primarily commercial vessels 79 feet in length and above, and for ballast water from small vessels less than 79 feet in length and fishing vessels. A Supplemental Notice of Proposed Rulemaking included additional regulatory options that the EPA was considering for select discharges.
      • SNPRM: October 13, 2023
      • Final Rule: October 9, 2024
        Sean Rolland

        Office of Science and Technology (OST)

        TitleDescriptionKey DatesACWA Staff Contact
        Federal Baseline Water Quality Standards for Indian Reservations n April 27, 2023, the Environmental Protection Agency (EPA) Administrator signed a proposed rule to establish water quality standards (WQS) for waters on Indian reservations that do not have WQS under the Clean Water Act (CWA). This rule will help advance President Biden’s commitment to strengthening the nation-to-nation relationships with Indian country. Fifty years after enactment of the CWA, over 80% of Indian reservations do not have this foundational CWA protection for their waters. Addressing this lack of CWA-effective WQS for the waters of more than 250 Indian reservations is a priority for EPA, given that WQS are central to implementing the water quality framework of the CWA. Promulgating baseline WQS would provide more scientific rigor and regulatory certainty to National Pollutant Discharge Elimination System (NPDES) permits for discharges to these waters. Consistent with EPA’s regulations, the baseline WQS include designated uses, water quality criteria to protect those uses, and antidegradation policies to protect high quality waters. EPA consulted with tribes in the summer of 2021 during the pre-proposal phase and in the summer of 2023, concurrent with the public comment period associated with the proposal.
        • Baseline NPRM: May 5, 2023
        • Baseline Public Comments: May-August 3, 2023
        • Baseline Final Rule: September, 2024
          Jasper Hobbs
          Water Quality Standards Regulatory Revisions to Protect Tribal Reserved Rights Many tribes hold reserved rights to resources on lands and waters where states establish water quality standards, through treaties, statutes, or other sources of federal law. The U.S. Constitution defines treaties as the supreme law of the land. On November 28, 2022, the EPA Administrator signed a proposed rule that would revise the federal water quality standards regulation to ensure that water quality standards do not impair tribal reserved rights by giving clear direction on how to develop water quality standards where tribes hold reserved rights. This proposed rule would help EPA ensure protection of resources reserved to tribes in treaties, statutes, or other sources of federal law when establishing, revising, and reviewing water quality standards. The development of this rule helps advance President Biden’s commitment to strengthening nation-to-nation relationships with tribes. EPA consulted with tribes in the summer of 2021 during the pre-proposal phase and in the winter of 2023, concurrent with the public comment period for the proposed rule. EPA is working to expeditiously finalize the proposed rule, taking into account public comments.

          This rule would establish a durable and transparent national framework outlining how tribal reserved rights to aquatic-dependent resources must be protected in water quality standards (WQS) for waters in which such rights apply. In 2016 EPA took actions in Maine and Washington to protect tribal reserved rights, requiring that human health criteria for waters in those states where tribes reserved the rights to fish for subsistence be set at more stringent levels to protect tribal fish consumers. In 2019 EPA disavowed the approach it took to protecting tribal reserved rights in the 2016 Maine and Washington actions and concluded that states and EPA can always protect tribal reserved rights by simply applying EPA’s existing regulations and guidance, with no additional consideration of such rights. EPA has now reconsidered its past assertions that tribal reserved rights do not impose any additional requirements in the WQS context. The changes in EPA’s position regarding consideration of reserved rights in the water quality standards context over the years have resulted in confusion for tribes, states, stakeholders and the public about how tribal reserved rights must be considered in establishment of WQS. In addition, states and industry groups criticized EPA for taking its actions in 2016 without first going through a national notice and comment rulemaking on its approach.
          • NPRM: December 5, 2022
          • Public Comments: Closed March 6, 2023
          • Final Rule: 03/00/2024
            Jasper Hobbs
            Preliminary Effluent Limitation Guidelines Plan 16The U.S. Environmental Protection Agency has released Preliminary Effluent Guidelines Program Plan 16 (Preliminary Plan 16), its latest plan for studying and developing technology-based pollution limits on industrial wastewater discharges (also called effluent).

            Preliminary Plan 16 provides updates related to several regulatory revision actions including:
            • Meat and Poultry Products Category to address nutrient discharges;
            • Organic Chemicals, Plastics & Synthetic Fibers Category to address PFAS discharges;
            • Metal Finishing and Electroplating Categories to address PFAS discharges.
            • Landfills Category to address PFAS discharge from landfill leachate; and
            • The recently finalized Steam Electric Power Generating Category rulemaking to strengthen certain wastewater pollution discharge limitations for coal-fired power plants that use steam to generate electricity.

            Finally, Preliminary Plan 16 provides updates on three ongoing EPA studies of: 1) the Concentrated Animal Feeding Operations Category, 2) the Textile Mills Category, and 3) POTW influent for PFAS.
            • Public Comment Deadline: January 17, 2025
            • Finalized: TBD
            Jasper Hobbs and Sean Rolland
            Revisions to the Metal Finishing Effluent Guidelines to Address PFAS Discharges in Chromium Electroplating WastewaterUnder this action, EPA is revising the Metal Finishing ELGs at 40 CFR part 433 to address discharges of per- and polyfluoroalkyl substances (PFAS) in wastewater from chromium electroplating facilities.
            • NPRM Publication Date: May 1, 2026
            • Final Rule Publication Date: TBD
            Jasper Hobbs and Sean Rolland
            Effluent Limitations Guidelines and Standards for the Meat and Poultry Point Source CategoryAs announced in the Effluent Limitations Guidelines Program Plan 15, EPA has initiated a rulemaking to revise the existing Meat and Poultry Products (MPP) Effluent Guidelines and Standards (ELGs) (40 CFR part 432) to address nutrient discharges. The agency will accept public comments on the proposal following publication in the Federal Register. Public hearings on the proposal will be held on January 24, 2024 and January 31, 2024.
            • Notice of Proposed Rule: December 2023
            • Final Rule: August 2025
              Jasper Hobbs and Sean Rolland
              Effluent Limitations Guidelines and Standards for the Organic Chemicals, Plastics and Synthetic Fibers Point Source Category: PFAS Discharges In February 2019, EPA announced in the Per- and polyfluoroalkyl substances (PFAS) Action Plan that the Agency was taking steps to evaluate if industrial sources warranted regulation through national Effluent Limitation Guidelines (ELGs) to address PFAS discharges. After studying the available data regarding wastewater discharges from facilities that manufacture PFAS, the EPA is initiating a rulemaking to revise ELGs for these manufacturers. As a preliminary step, the EPA intends to publish an advanced notice of proposed rulemaking (ANPRM) to solicit data and information regarding manufacturers of PFAS and the presence and treatment of PFAS in discharges from this industrial category. The EPA also intends to request information regarding PFAS formulators, which are facilities that produce a variety of PFAS products and materials from PFAS feedstocks. The EPA was able to obtain only limited data regarding formulators through publicly available sources, and additional information would inform the Agency’s consideration of discharges from PFAS formulators and the need for updated ELGs for these facilities. PFAS manufacturers and formulators are currently regulated under the Organic Chemicals, Plastics and Synthetic Fibers (OCPSF) ELGs found at 40 CFR part 414. Based, in part, on the public comments EPA receives on the ANPRM, the EPA intends to develop a proposed regulation.
              • Advanced Notice of Proposed Rule: March 17, 2021
              • ACWA Submits Comments: May 17, 2021
              • NPRM: December, 2024
                Jasper Hobbs and Sean Rolland
                Landfills Effluent Guidelines As announced in the Effluent Guidelines Program Plan 15 at 88 FR 6258 (January 31, 2023), the EPA is revising the Landfills Effluent Limitation Guidelines at 40 CFR part 445 to address discharges of per- and polyfluoroalkyl substances in wastewater from landfills. The existing effluent guidelines do not include pretreatment standards or limitations on any PFAS. The EPA identified landfills as a significant source of PFAS during the EPA’s detailed study of the landfills industry. The EPA has gathered enough data to support a decision to initiate a rulemaking to revise the existing effluent guidelines for the landfills point source category to address discharges of PFAS and other pollutants in their wastewater.
                • Notice of Proposed Rule: January, 2027
                • Final Rule: TBD
                  Jasper Hobbs and Sean Rolland
                  304(a) Recommended Lake/Reservoir Numeric Nutrient CriteriaOn May 22, 2020, EPA announced the release of the Draft Ambient Water Quality Criteria Recommendations for Lakes and Reservoirs of the Conterminous United States: Information Supporting the Development of Numeric Nutrient Criteria for a 60-day comment period for scientific input. These draft national criteria recommendations are models for total nitrogen and total phosphorus concentrations in lakes and reservoirs to protect three different designated uses—aquatic life, recreation, and drinking water source protection—from the adverse effects of nutrient pollution. See Regulations.gov, Docket "EPA-HQ-OW-2019-0675"
                  • Public Comment Deadline: August 20, 2020
                  • FInalized: August, 2021
                  • Implementation Document Review: Summer 2022
                  • Implementation Document Public Comment Period: January 12-March 13, 2023
                    Jasper Hobbs
                    Updated Selenium Criteria and Technical Support MaterialsEPA’s water quality criterion for selenium provides recommendations to states and tribes authorized to establish water quality standards under the Clean Water Act. This criterion includes information to help states to develop site specific criteria that account for differing local conditions.

                    In 2021, EPA identified that the following text was missing from the second sentence in footnote 4 in the criterion table: "When selenium inputs are increasing." Corrected footnote 4 now states: "4. Water column values are based on dissolved total selenium in water and are derived from fish tissue values via bioaccumulation modeling. When selenium inputs are increasing, water column values are the applicable criterion element in the absence of steady-state condition fish tissue data.” Footnotes 2 and 3 also reflect that footnote 4 was corrected.
                    • Criteria Update Using Fish Tissue Concentrations: 2004
                    • Draft Criteria for Public Comment: 2014
                    • Revised Draft Criteria for Public Comment: 2015
                    • Final Criteria: 2016
                    • Final Criteria Re-published with Footnote Corrections: August 2021
                    • Public Comments Due for Selenium Criteria Technical Support Materials: January 3, 2022
                    • Final Technical Support Materials: 2023 TBD
                    Jasper Hobbs
                    Updated Aluminum Criteria and Technical Support MaterialsEPA requested scientific review for the draft updated aquatic life ambient water water quality criteria for aluminum in freshwater. Due to state interest, EPA and ACWA set up a Aluminum Criteria Working Group in January of 2018. This working group is working on implementation guidance for the updated criteria. EPA has targeted a final review of draft implementation guidance in Fall 2020 .
                    • Proposed: Jul. 28, 2017
                    • Comment Period: Closed Sept. 26, 2017
                    • Finalized: December 2018
                    • Public Comment Deadline on Technical Support Materials: February 6, 2022
                    • Final Technical Support Materials: 2023 TBD
                    Jasper Hobbs
                    Recreational Ambient Water Quality Criteria/Swimming Advisories for CyanotoxinsEPA proposed a recreational ambient water quality criteria for cyanotoxins, which was later changed to a criteria or an advisory. This criteria/advisory focuses on microcystin and cylindrospermopsin concentration in fresh waters. The criteria/advisory, originally intended to be published in time for the 2017 swimming season has been delayed.
                    • Proposed: Dec. 2016
                    • Comment Period: Closed Mar. 20, 2017
                      ACWA
                    • Comments: Mar. 20, 2017
                    • Issued: May 22, 2019
                    Jasper Hobbs
                    Preliminary Effluent Limitation Guidelines Plan 15On March 29, 2023, EPA published a proposed rule to potentially strengthen the Steam Electric Effluent Limitations Guidelines and Standards (ELGs) (40 CFR 423). EPA previously revised the Steam Electric ELGs in 2015 and 2020. The proposed rule would establish more stringent ELGs for two waste streams addressed in the 2020 “Steam Electric Reconsideration Rule” (flue gas desulfurization wastewater and bottom ash transport water). In addition, the proposal would establish more stringent effluent limitations and standards for an additional waste stream (combustion residual leachate) and takes comment on potential revisions to limitations and standards for a fourth waste stream (legacy wastewater). The first two waste streams mentioned above are the subject of current litigation pending in the U.S. Court of Appeals for the Fourth Circuit. Appalachian Voices, et al. v. EPA, No. 20-2187 (4th Cir.). The 2015 limitations for combustion residual leachate and legacy wastewater discharged by existing sources were vacated by the U.S. Court of Appeals for the Fifth Circuit in Southwestern Electric Power Co., et al. v. EPA, 920 F.3d 999 (5th Cir. 2019).
                    • Comment Period Closed: May 2023
                    • Final Plan 15: April 2024
                      Jasper Hobbs and Sean Rolland
                      Clean Water Act Methods Update Rule for the Analysis of Effluent EPA regularly promulgates updates to the table of approved Clean Water Act monitoring methods at 40 CFR 136.3. This methods update rule (MUR) considers adding new methods and analytes to the 40 CFR part 136.3 tables. These include multi-laboratory validated EPA methods for per- and polyfluorinated alkyl substances (PFAS), a method defined parameter for adsorbable organic fluorine, the promulgation of which in 40 CFR 136.3 will support the Organic Chemicals, Plastics, and Synthetic Fibers Effluent Limitations Guidelines and Standards (40 CFR part 414) rulemaking to address PFAS discharges from facilities manufacturing PFAS. The MUR also considers adding a method for poly-chlorinated biphenyl (PCB) congeners (a more accurate substitute for PCB Aroclors). The rule may also include other parameters proposed by Voluntary Consensus Standard Bodies (VCSB) as is consistent with the National Technology Transfer Act. These VCSB methods are most likely proposing a PFAS method, peracetic acid, hydrogen peroxide, and total nitrogen; assuming the VCSB provides adequate validation data. The EPA is not considering method revisions or Alternate Test Procedures that would be addressed more routinely in a routine MUR.
                      • NPRM: December , 2024
                      • Final: March, 2026
                        Jasper Hobbs and Sean Rolland
                        National Biosolids Program Strategy: Fiscal Year 2020-2025The Biosolids Program Strategy is a 5-year outlook that describes key activities in the following focus areas. This strategy will be updated as needed including target initiation and completion dates. The strategy details CWA Activities Based on the Latest Scientific Knowledge; Resource Recovery and Reuse Alternatives; Lifecycle Assessment; Biosolids Partner Engagement; and, Biosolids Research.
                        Specific activities for Fiscal Years 2020-2025 under the focus areas support meeting CWA requirements for biosolids and are consistent with scientific recommendations to EPA from the National Research Council (NRC).
                        • Strategy Update: December 2021
                          Jasper Hobbs

                          Office of Ground Water and Drinking Water (OGWDW)

                          TitleDescriptionKey DatesACWA Staff Contact
                          Lead and Copper RuleOn November 13, 2019, EPA issued regulatory revisions to the National Primary Drinking Water Regulation (NPDWR) for lead and copper under the authority of the Safe Drinking Water Act (SDWA). This proposed rule provides more effective protection of public health by reducing exposure to lead and copper in drinking water. This proposed rule also strengthens procedures and requirements related to health protection and the implementation of the existing Lead and Copper Rule (LCR) in the following areas: Lead tap sampling; corrosion control treatment; lead service line replacement; consumer awareness; and public education. This proposal does not include revisions to the copper requirements of the existing LCR. In addition, this proposal includes new requirements for community water systems to conduct lead in drinking water testing and public education in schools and child care facilities.

                          The Final LCR Regulatory Revisions were published to the Federal Register here.

                          On March 12, 2021, EPA issued a proposed rule delaying the LCRR's effective and compliance dates to enable the Agency to consult with stakeholders and review the LCRR in accordance with Executive Order 13990. This review of the LCRR will be consistent with the policy aims set forth in Executive Order 13985 on Advancing Racial Equity and Support for Underserved Communities Through the Federal Government.

                          The Environmental Protection Agency (EPA) published the final Lead and Copper Rule Revision (LCRR) on January 15, 2021. EPA reviewed the LCRR and decided to initiate a new rulemaking process to improve the rule. This new National Primary Drinking Water Regulation is called the Lead and Copper Rule Improvements (LCRI). EPA is developing LCRI to strengthen the regulatory framework and address lead in drinking water.

                          More information can be found here.
                          • Proposed Rule Published: Nov. 13, 2019
                          • Comment Deadline: January 13, 2020
                          • Comment Deadline Extended: February 12, 2020
                          • Pre-Pub Version of Final Rule Posted Dec. 22, 2020
                          • Final Regulatory Revisions Published to FR: January 15, 2021
                          • Effective Date: March 16, 2021
                          • Proposed Rule Delaying Effective & Compliance Dates Published to FR: March 12, 2021
                          • Finalization of Lead and Copper Rule Revisions (LCRR): December 16, 2021
                          • Announcement of Future Rule Revision "Lead and Copper Rule Improvements (LCRI)": 12/16/21
                          • LCRI NPRM 12/6/23
                          • Final Rule: 10/30/24
                          • Effective Date: 12/30/24
                            Julia Anastasio
                            Regulatory Determinations for PFOA and PFOS, National Primary Drinking Water RegulationSDWA requires EPA to make regulatory determinations on at least five contaminants on the Contaminant Candidate List (CCL) every five years. The CCL is a list of contaminants that are currently not subject to any proposed or promulgated national primary drinking water regulations but are known or anticipated to occur in public water systems. A regulatory determination is a decision about whether or not to begin the process to propose and promulgate a national primary drinking water regulation for an unregulated contaminant. Before EPA can issue a final regulatory determination, it must propose a preliminary regulatory determination to present EPA's supporting rationale about whether the specific statutory criteria for regulating a contaminant have been met.

                            On March 10, 2020, the EPA published a notice which proposed to make positive regulatory determinations for perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), and to make negative determinations for six contaminants (1,1-dichloroethane, acetochlor, methyl bromide, metolachlor, nitrobenzene, and RDX). The notice also presents an update on three other contaminants (strontium, 1,4-dioxane, and 1,2,3-trichloropropane).

                            On February 22, 2021, EPA reissued the same final regulatory determinations for the contaminants noted above. EPA will now pursue a national primary drinking water regulation (NPDWR) for PFOA and PFOS.
                            • Proposed Determination: March 10, 2020
                            • Final Determination Made: February 22, 2021
                            • NPDWR NPRM: March 3, 2023
                            • Final NPDWR: September 3, 2024
                            Julia Anastasio

                            Office of Enforcement Compliance Assurance (OECA)

                            TitleDescriptionKey DatesACWA Staff Contact
                            There are no current pending rules at this time. N/AN/A
                            Sean Rolland

                            Office of Water (OW)

                            TitleDescriptionKey DatesACWA Staff Contact
                            Cybersecurity in Public Water SystemsEPA is evaluating regulatory approaches to improve cybersecurity at public water systems. EPA plans to offer separate guidance, training, and technical assistance to states and public water systems on cybersecurity. This action will provide regulatory clarity and promote the adoption of cybersecurity measures by public water systems.
                            • NPRM Publication Date: TBD
                            Sean Rolland
                            Vessel Incidental Discharge National Standards of PerformanceOn September 20, 2024, EPA finalized national standards of performance for incidental discharges from non-recreational, non-Armed Forces vessels 79 feet in length and above, as well as ballast water only from fishing vessels of any size and non-recreational, non-Armed Forces vessels less than 79 feet in length.

                            EPA Link: Commercial Vessel Discharge Standards

                            RIN: 2040-AF92
                            • NPRM: April 26, 2020 (85 FR 67818)
                            • Comment Period End: November 25, 2020
                            • Supplemental NPRM: October 18, 2023 (88 FR 71788)
                            • Supplemental NPRM Comment Period End: December 18, 2023
                            • Final Rule: October 9, 2024 (89 FR 82074)
                            • Final Rule Effective: November 8, 2024

                            Ward Scott

                            Office of Land and Emergency Management (OLEM) & Office of Chemical Safety and Pollution Prevention (OCSPP)

                            TitleDescriptionKey DatesACWA Staff Contact
                            PFAS-Related Designations as CERCLA Hazardous Substances: "Addressing PFAS in the Environment"Under the Comprehensive Environmental Response, Compensation, and Liability Act of 1980, as amended (“CERCLA” or “Superfund”), the Environmental Protection Agency (EPA or the Agency) is moving to finalize the designation of perfluorooctanoic acid (PFOA) and perfluoro octane sulfonic acid (PFOS), including their salts and structural isomers, as hazardous substances. CERCLA authorizes the Administrator to promulgate regulations designating as hazardous substances such elements, compounds, mixtures, solutions, and substances which, when released into the environment, may present substantial danger to the public health or welfare or the environment. Such a designation would ultimately facilitate cleanup of contaminated sites and reduce human exposure to these “forever” chemicals.
                            • ANPRM: April 3, 2023
                            • Comments due: June 12, 2023
                            • Final Rule: March 2024
                            Jasper Hobbs
                            Listing of PFOA, PFOS, PFBS, and GenX as Resource Conservation and Recovery Act (RCRA) Hazardous ConstituentsBased on public health and environmental protection concerns and in response to petitions from the Governor of New Mexico, Public Employees for Environmental Responsibility, and Berkeley School of Law on behalf of five other organizations, which request EPA to take regulatory action on PFAS under RCRA, EPA is evaluating the existing toxicity and health effects data on four PFAS constituents to determine if they should be listed as RCRA Hazardous Constituents. If the existing data for the four PFAS constituents support listing any or all of these constituents as RCRA hazardous constituents, EPA will propose to list the constituents in a Federal Register notice for public comment. The four PFAS chemicals EPA will evaluate are: perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid (PFOS), perfluorobutane sulfonic acid (PFBS), hexafluoropropylene oxide dimer acid (HFPO-DA, and/or GenX).
                            • NPRM: December 2023
                            Jasper Hobbs
                            Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From Electric Utilities; Legacy Surface Impoundments On April 17, 2015, the Environmental Protection Agency (EPA or the Agency) promulgated national minimum criteria for existing and new coal combustion residuals (CCR) landfills and existing and new CCR surface impoundments. On August 21, 2018, the D.C. Circuit Court of Appeals issued its opinion in the case of Utility Solid Waste Activities Group, et al v. EPA, which vacated and remanded the provision that exempted inactive impoundments at inactive facilities from the CCR rule. In May 2023, EPA proposed regulations to implement this part of the court decision for inactive CCR surface impoundments at inactive utilities, or “legacy CCR surface impoundments”. This proposal included adding a new definition for legacy CCR surface impoundments. EPA also proposed to require such legacy CCR surface impoundments to follow existing regulatory requirements for fugitive dust, groundwater monitoring, and closure, or other technical requirements. Finally, EPA proposed requirements for CCR management units including a facility evaluation and to follow existing regulatory requirements for groundwater monitoring, corrective action, and closure for all CCR contamination (regardless of how or when that CCR was placed) at a regulated facility. After reviewing the public comments on the proposed rule, EPA will take final action.
                            • ANPRM: October 14, 2020
                            • NPRM: June 2023
                            • Final Rule: April 2024
                            Jasper Hobbs
                            Procedures for Chemical Risk Evaluation Under the Amended Toxic Substances Control ActPer S. 6(b)(4) of the TSCA, EPA published a final rule on July 20, 2017, that established a process for conducting chemical risk evaluations. This process incorporates the science requirements of the amended statute, including best available science and weight of the scientific evidence. The final rule established the steps of a risk evaluation process including: scope, hazard assessment, exposure assessment, risk characterization, and risk determination. The Agency is now in the process of reconsidering that final rule in keeping with new executive orders concerning the advancement of racial equity and support for underserved communities through the Federal government (EO 13985), the protection of public health and the environment and restoring science to tackle the climate crisis (EO 13990), tackling the climate crisis at home and abroad (EO 14008), and other Administration priorities (such as the Presidential memorandum on restoring trust in government through scientific integrity and evidence-based policymaking). If EPA determines to amend the 2017 final rule, EPA will solicit public comment through a NPRM.
                            • NPRM: September 2023
                            • NPRM Comment Period End December 14 2023
                            • Final Rule: April 2024
                            Jasper Hobbs
                            Changes to Reporting Requirements for PFAS and to Supplier Notifications for Chemicals of Special Concern ( Community Right-to-Know Toxic Chemical Release Reporting); AND Changes to Reporting Requirements for PFAS (Community Right-to-Know Toxic Chemical Release Reporting (40 CFR 372))EPA is proposing to add all PFAS subject to reporting under section 313 of the Emergency Planning and Community Right-to-Know Act (EPCRA) and section 6607 of the Pollution Prevention Act (PPA) to the list of Lower Thresholds for Chemicals of Special Concern (Chemicals of Special Concern). The addition of the PFAS to the Chemicals of Special Concern list will eliminate the use of the de minimis exemption, eliminate the option to use Form A, and will limit the use of range reporting. In addition, EPA is proposing to eliminate the use of the de minimis exemption under the Supplier Notification Requirements for facilities that manufacture, or process all chemicals included on the Chemicals of Special Concern list. Chemicals of Special Concern may be found in products below de minimis levels, this is especially true for PFAS which are used at low concentrations in many products. However, because of the widespread use of PFAS and their (or their degradants) persistence in the environment even concentrations below de minimis levels can contribute significantly to environmental loading.
                            • NPRM: March 2022
                            • Proposal to designate PFAS as "Special Chemicals of Concern" to lower/eliminate de minimis reporting exemption: December 5, 2022, comments due February 3, 2023
                            • Final Rule: November 2023
                            Jasper Hobbs
                            Revisions to Regulations on Persistent, Bioaccumulative, and Toxic (PBT) Chemicals Subject to the Toxic Substances Control Act (TSCA)TSCA directs EPA to take expedited action on certain persistent, bioaccumulative, and toxic (PBT) chemicals to address the risks of injury to health or the environment presented by the chemical substance and reduce exposure to the substance to the extent practicable. Consistent with that mandate, final risk management rules restricting the use of five PBT chemicals were issued in January 2021 and went into effect in February 2021. EPA is considering revisions to all five of the final rules to further reduce exposures, promote environmental justice, and better protect human health and the environment.

                            • NPRM: October, 2023
                            Jasper Hobbs
                            Addition of Certain Per- and Polyfluoroalkyl Substances (PFAS) to the Toxics Release Inventory (TRI) EPA is developing a rulemaking to add certain per and polyfluoroalkyl substances (PFAS) to the list of chemicals reportable under section 313 of the Emergency Planning and Community Right-to-Know Act (EPCRA). The proposed addition of these PFAS is in direct response to a statutory mandate under section 7321(d) of the National Defense Authorization Act for Fiscal Year 2020 (NDAA), which requires EPA to add any PFAS that the Agency determines meet the listing criteria by December 2023.
                            • NPRM: February 2024
                            • Final Rule: November 2024
                            Jasper Hobbs
                            TSCA Section 8(a)(7) Reporting and Recordkeeping Requirements for PFASEPA published a proposed rule on June 28, 2021, addressing reporting and recordkeeping requirements for Per- and Polyfluoroalkyl Substances (PFAS) under section 8(a)(7) of the Toxic Substances Control Act (TSCA). In accordance with obligations under TSCA section 8(a), as amended by section 7351 of the National Defense Authorization Act for Fiscal Year 2020, persons that manufacture (including import) or have manufactured these chemical substances in any year since January 1, 2011, would be subject to the reporting and recordkeeping requirements. In addition to fulfilling statutory obligations under TSCA, EPA expects that the final rule will enable EPA to better characterize the sources and quantities of manufactured PFAS in the United States. EPA solicited additional public comments on an Initial Regulatory Flexibility Analysis (IRFA) following the completion of a Small Business Advocacy Review (SBAR) Panel addressing the proposed PFAS reporting and recordkeeping requirements.
                            • NPRM: June 28, 2021
                            • Notice: November 25, 2022
                            • Comments Due: December 27, 2022
                            • Final Rule: September 2023
                            Jasper Hobbs
                            Addition of Diisononyl Phthalate Category; Community Right-to-Know Toxic Chemical Release ReportingOn September 5, 2000, in response to a petition filed under the Emergency Planning and Community Right-to-Know Act (EPCRA), EPA issued a proposed rule to add a diisononyl phthalate (DINP) category to the list of toxic chemicals subject to the reporting requirements under EPCRA and the Pollution Prevention Act (PPA). EPA proposed to add this chemical category to the EPCRA toxic chemical list based on its preliminary conclusion that this category met the EPCRA toxicity criterion. EPA has updated its hazard assessment for DINP and is proposing to add DINP as a category defined to include branched alkyl di-esters of 1,2 benzenedicarboxylic acid in which alkyl ester moieties contain a total of nine carbons. The updated hazard assessment demonstrates that the proposed DINP category meets the EPCRA toxicity criterion because the members of the category can reasonably be anticipated to cause cancer and serious or irreversible chronic health effects in humans; specifically, developmental effects, kidney toxicity, and liver toxicity. On August 15, 2022, EPA proposed to add the DINP category to the toxic chemical list on this basis and requested comment on the updated DINP hazard assessment and associated updated economic analysis. EPA is considering the public comments received and next steps for this rulemaking.
                            • NPRM: September 2000
                            • Notice: June 14, 2005
                            • Supplemental NRPM: August 15, 2022
                            • Final Rule: May 2023
                            Jasper Hobbs
                            New Chemicals Procedural Regulations to Reflect the 2016 Amendments to the Toxic Substances Control Act (TSCA)On June 22, 2016, the Lautenberg amendments to the Toxic Substances Control Act (TSCA) were signed into law and impacted how EPA reviews and makes determinations on new chemical notices under TSCA section 5. As a result of these increased responsibilities, it has become more challenging for EPA to complete reviews within 90 days. This rulemaking seeks to revise the new chemicals procedural regulations in 40 CFR part 720 to improve the efficiency of EPA’s review process and to align its processes and procedures with the new statutory requirements. This rulemaking seeks to increase the quality of information initially submitted in new chemicals notices and improve the Agency’s processes to reduce unnecessary rework in the risk assessment and, ultimately, the length of time that new chemicals are under review.
                            • NPRM: September 2022
                            • Final Rule: TBD
                            Jasper Hobbs

                            Select Non Rulemaking Efforts and Other Developments

                            TitleDescriptionKey DatesACWA Staff Contact
                            EPA Climate Change Strategic PlansEPA’s Climate Adaptation Action Plan is intended to accelerate and focus attention on five priority actions the Agency will take over the next four years to increase human and ecosystem resilience as the climate changes and disruptive impacts increase. ACWA and ASDWA are working with EPA on implementation planning.
                            • EPA Climate Adaptation Plan published: 10/2021
                            • EPA National Program, Regional Office, and Office of Policy Climate Adaptation Implementation Plans published: October 2022
                            Ward Scott
                            National Water Reuse Action PlanEPA is leading a multi-agency directive on water reuse and recycling across sectors including agriculture, industry, potable water, national security, and environmental restoration. In 2019, EPA consulted with states and other stakeholders to develop a draft National Water Reuse Action Plan containing proposed actions across 11 strategic objectives.

                            Because water reuse is governed at the state level, ACWA and partner state water organizations (i.e., ASDWA, GWPC, WSWC) has been identified as a "critical partner" in carrying out the plan.

                            View example outputs from Plan Implementation, such as "Financial Support for Water Reuse from the Clean Water State Revolving Fund," here.

                            View each action, action teams and timelines, and outputs/materials produced to date here.

                            Access EPA materials, public comment docket, and Federal Register materials here.
                            • Draft Plan published: September 10, 2019
                            • Comment period deadline: Dec. 16, 2019
                            • Final National Water Reuse Action Plan Issued: Feb. 27, 2020
                            • 2nd Water Reuse State Regulator Summit (ACWA, ASDWA): September 2020
                            • EPA Water Reuse Program Codified in Congress' Infrastructure Investment and Jobs Act: November 15, 2021
                            • Federal Water Reuse Interagency Working Group: established May 2022
                            • 3rd States-only Water Reuse Workshop: March 5 2023
                            • 4th States-only Water Reuse Workshop: March 11, 2024
                            Ward Scott
                            Credit Assistance for Water Infrastructure Projects EPA is taking this action to update the Water Infrastructure Finance and Innovation Act (WIFIA) program regulation. This update is based on lessons learned from the first three years of program implementation. This action is also intended to provide guidelines on the WIFIA loan program for State Revolving Funds (SRFs) included in amendments passed as part of America's Water Infrastructure Act of 2018, Public Law 115-270.
                            • Interim Final Rule: December 2016
                            • Estimated Update of Interim Rule: August, 2021
                            Ward Scott
                            Nonpoint Source Program and Grants Guidelines for States and TerritoriesOn May 4, 2024, EPA released Nonpoint Source Program and Grants Guidelines for States and Territories, providing revised guidelines to states and territories for the award of CWA Section 319 grants and the implementation of nonpoint source (NPS) management programs. The new guidelines replace the Nonpoint Source Program and Grants Guidelines for States and Territories that had been in effect since the fiscal year 2014 grant cycle.

                            EPA Link: CWA Section 319 Grant: Current Guidance
                            • Notice: October 30, 2023
                            • Comment Period End: December 31, 2023
                            • Final Guidelines: May 4, 2024
                            Ward Scott

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