Per- and Polyfluoroalkyl Substances (PFAS) | State Legislation and Federal Action

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Introduction

Per- and poly-fluoroalkyls, known more commonly as PFAS, are a group of human-made chemicals not found naturally in the environment that have emerged in the last decade as an issue of increasing interest to state legislatures and the federal government. The PFAS group includes chemicals such as perfluorooctanoic acid (PFOA), perfluorooctanesulfonic acid (PFOS), GenX and more than 7,800 others.

PFAS are used in a wide range of products used daily-from cookware to rain jackets to pizza boxes-because of their ability to repel dirt, water and grease. In fact, since their introduction in the 1940s, the chemicals have been used in a variety of industries and consumer goods, including carpeting, paper packaging, nonstick and weather-resistant coatings, rubber and plastics. As such, most people have been exposed to PFAS at some point in their lives, and while PFOA and PFOS are no longer manufactured in the United States, these chemicals are still produced internationally and imported into the country in consumer products.

Studies have linked the chemicals to adverse health effects such as low infant birth weights, asthma, cancer and thyroid hormone disruptions. According to the Environmental Protection Agency, studies indicate that PFOA and PFOS can impact reproductive and developmental systems, liver and kidney function and cause immunological effects in laboratory animals. The Agency for Toxic Substances and Disease Registry's 2020 toxicological profile of PFAS also indicates that high levels of the chemicals in the blood may decrease the body's ability to respond to vaccines. Given the negative public health impacts, it is alarming that 95% of people tested since 1999 were found to have PFAS in their bodies, according to the National Health and Nutrition Examination Survey performed by the Centers for Disease Control and Prevention.

Given the widespread exposure to PFAS in the U.S., state legislatures and the federal government are acting to mitigate the public health impacts and address the environmental degradation that the production and use of these chemicals have caused.

Key Takeaways

Federal Action

The Environmental Protection Agency has been investigating a group of chemicals known as per- and polyfluoroalkyl substances or PFAS since 2004 and has found that certain PFAS, including perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), cause significant negative health impacts in laboratory animals. Given the negative health impacts, the EPA has committed itself to moving forward with several actions aimed at helping affected communities better monitor, detect and address these chemicals.

Previous Agency Actions

One of the first actions conducted by the EPA with respect to PFAS was the publication of a nonenforceable health advisory on PFOA and PFOS in 2016. This advisory, which has since been superseded by the below National Primary Drinking Water Regulation, established safe levels of the chemicals in drinking water at no more than 70 parts per trillion.

Another early action of the EPA was the release of a formal PFAS Action Plan in 2019, following several meetings with federal, state and local government stakeholders. In the plan, the agency outlined long- and short-term previous, ongoing, and anticipated actions that it had already undertaken or planned to undertake with respect to the chemicals.

These actions included but were not limited to: developing a maximum containment level for states and local water utilities via the Safe Drinking Water Act; listing PFOA and PFOS as hazardous substances under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA, also known as Superfund); considering listing the chemicals in the Toxic Release Inventory; and developing new and better methods to detect the chemicals in drinking water, soil and groundwater. The EPA updated the plan in 2020 and outlined agency actions taken to address and mitigate the chemicals in the environment.

In 2021, the agency released a new plan, the PFAS Strategic Roadmap: EPA's Commitments to Action 2021-2024, which highlighted new actions, goals and objectives for addressing PFAS at the federal level. Many of these actions have since been completed and are described in more detail in the subsection below. Other objectives that have been achieved, but are not described below, include but are not limited to providing grant fundingfor understanding and managing PFAS in the agriculture sector; implementation of new rules that bar federal buildings from purchasing cleaning supplies that include PFAS; adding seven PFAS to the Toxic Releases Inventory; publishing recommendations for groundwater cleanup; and announcing a new testing method for 11 additional PFAS chemicals in drinking water, and methods for measuring PFAS in soil, air, water systems and wastewater.

Recent Actions

The EPA took several significant steps to address PFAS in 2024. Notably for states, the EPA finalized the National Primary Drinking Water Regulation, which established the first legally enforceable levels-also known as maximum contaminant levels (MCLs)-for six per- and polyfluoroalkyl substances chemicals: PFOA, PFOS, perfluorononanoic acid (PFNA), HFPO-DA more commonly known as GenX chemicals, perfluorohexane sulfonic acid (PFHxS) and perfluorobutane sulfonate (PFBS) in drinking water. The EPA's final regulation set the enforceable MCL for PFOA and PFOS at 4.0 parts per trillion, the MCL for PFHxS, PFNA, and GenX chemicals at 10 parts per trillion, and a "group" MCL for mixtures containing two or more of the listed chemicals at 1.0 (unitless). Specifically, this regulation requires public water systems to monitor PFAS levels in drinking water, notify the public of those levels and reduce the levels if they exceed the standards. It also preempts previously established state drinking water regulations or guidance values for the above listed PFAS, as states are now required to adjust their standards to comply with at least the minimum federal levels.

The EPA also  designated PFOA and PFOS as hazardous substances under the Superfund law in 2024, a goal that was outlined in the agency's PFAS Strategic Roadmap. By designating the chemicals under CERCLA, as the Superfund law is formally known, the federal government may take actions at a contaminated site or transfer necessary funds and management responsibility to a state or tribe.

This Superfund designation requires facilities to immediately report on PFOA and PFOS releases that meet or exceed selected reportable quantities and enhances the ability of federal, tribal, state and local authorities to obtain information regarding the location and extent of those releases. Designation also allows the EPA to address more hazardous sites and take more proactive action, expediting the overall cleanup process.

Additionally, designation allows the EPA or other agencies to recover cleanup costs from the responsible party or require said party to conduct the cleanup. This finalized rule was implemented to increase transparency and accountability around required cleanup of PFAS contamination when appropriate, particularly in the case of entities which significantly contribute to the exposure of PFAS in the environment.

The EPA proposed two regulations in 2024 that would protect communities from PFAS by adding nine PFAS to the list of Resource Conservation and Recovery Act hazardous wastes. This proposal would authorize the EPA's and appropriate states' authority to require cleanup of hazardous substances, recognizing emerging chemicals of concern like PFAS.

In another recent action, the agency issued a final rule in 2024 requiring manufacturers of PFAS and PFAS-containing articles to report information regarding intended use, production volume, disposal, exposure and hazards to the EPA. Reporting requirements were further strengthened by a subsequent rule eliminating an exemption that allowed facilities to avoid reporting small concentrations of PFAS.

The EPA also finalized new limits under the Toxic Substances Control Act for 329 PFAS that have not been made or used within the past several years. The limits ensure that new uses of certain chemicals within the class cannot be manufactured or imported without notification and review. The new rule requires anyone who plans on manufacturing or processing any of the 329 PFAS to submit a Significant New Use Notice to the EPA for review.

In 2024, the agency finalized the water quality criteria for 10 PFAS. The criteria focuses on safeguarding aquatic ecosystems from PFAS contamination. Although the guidelines are non-enforceable, they offer states and tribes guidelines for supporting the development of water quality standards, promoting state-level Clean Water Act programs.

Other recent PFAS efforts by the EPA have focused on improving monitoring and disposal capabilities. The agency released additional guidance, informed by new research, to assist waste managers in effectively destroying and disposing of PFAS materials. The agency's 2023 data release under the Unregulated Contaminant Monitoring Rule serves as the most extensive national monitoring effort for PFAS. According to the agency, the data collected ranges across all large and midsize public water systems.

All ongoing EPA actions can be found here.

Enforcement

The EPA undertook its first enforcement action of PFAS discharges under the Clean Water Act in 2023, by ordering the Chemours Company to address and correct PFAS pollution in in West Virginia stormwater and effluent discharge.

Most recently,, the EPA served the MRRA with an enforcement order which MRRA subsequently removed all PFAS containing AFF from their facilities.

Congressional Actions

While the federal administration continues to work toward regulating PFAS chemicals, Congress is also developing legislation to address them. More than 70  90 measures were introduced in the 117th Congress, alone and more than 40 so far in the 72 in the 118th Congress, and 22 so far in the 119th Congress.  

The 2021 Bipartisan Infrastructure Law, allocated $10 billion in new government funding to address PFAS and other emerging contaminants. Specifically, funding has been directed towards: 

• $5 billion to address emerging contaminants for small and disadvantaged communities, distributed to improve drinking water quality under the Safe Drinking Water Act. 
• $1 billion for wastewater and stormwater infrastructure projects under the Clean Water State Revolving Fund. 
• $4 billion for community water systems to upgrade drinking water treatment, distribution and replacement of contaminated sources under the Drinking Water SRF. 

Such funding typically requires matching or cost-sharing from the states, but the Bipartisan Infrastructure Law's PFAS funding is awarded as a grant, a loan with the entire principal forgiven, or a combination of the two, and every state and territory will receive some portion of the funding. For more information, see the EPA's webpage tracking the funding.  

In the 119th Congress, the Congressional PFAS Task Force was reintroduced, prioritizing advancing PFAS legislation, addressing polluter accountability, educating the public on PFAS, and securing federal investments.

State Action

State policymakers have targeted PFAS substances with a variety of approaches. In recent years, states have enacted laws restricting PFAS-per- and polyfluoroalkyl substances-in firefighting foam; regulating the presence of PFAS in drinking water, food packaging and consumer products; and allocating funds for cleanup and remediation; among other measures.

In addition to passing legislation, states have also addressed PFAS through agency rulemaking, such as adopting standards for PFAS levels in water supplies. Further, states have addressed PFAS through legal action. At least nine states-California, Colorado, Michigan, Minnesota, New Hampshire, New Jersey, New York, Ohio and Vermont-have sued the manufacturers of PFAS chemicals for threatening public health and the environment. New Mexico has filed a lawsuit against the federal government for water contamination at U.S. Air Force bases. As of April, 2024, 36 state attorneys general have initiated PFAS litigation, including 12 state attorneys general in 2023.

Recent State Legislation

2024

More recently the EPA has taken several steps to address PFAS in 2024 and 2025. Notably for states, the EPA finalized the National Primary Drinking Water Regulation, which established the first federally legally enforceable levels-also known as maximum contaminant levels (MCLs)-for two per- and polyfluoroalkyl substances chemicals: PFOA and PFOS. Since 2025, four PFAS that previously had enforceable MCLs in drinking water have been removed for review: perfluorohexane sulfonic acid (PFHxS), perfluorononanoic acid (PFNA), perfluorobutane sulfonate (PFBS), and HFPO-DA more commonly known as GenX chemicals. The EPA's final regulation set the enforceable MCL for PFOA and PFOS at 4.0 parts per trillion. Specifically, this regulation requires public water systems to monitor PFAS levels in drinking water, notify the public of those levels and reduce the levels if they exceed the standards. It also preempts previously established state drinking water regulations or guidance values for the above listed PFAS, as states are now required to adjust their standards to comply with at least the minimum federal levels.

The EPA also  designated PFOA and PFOS as hazardous substances under the Superfund law in 2024, a goal that was outlined in the agency's PFAS Strategic Roadmap. By designating the chemicals under CERCLA, as the Superfund law is formally known, the federal government may take actions at a contaminated site or transfer necessary funds and management responsibility to a state or tribe.

This Superfund designation requires facilities to immediately report on PFOA and PFOS releases that meet or exceed selected reportable quantities and enhances the ability of federal, tribal, state and local authorities to obtain information regarding the location and extent of those releases. Designation also allows the EPA to address more hazardous sites and take more proactive action, expediting the overall cleanup process.

Additionally, designation allows the EPA or other agencies to recover cleanup costs from the responsible party or require said party to conduct the cleanup. This finalized rule was implemented to increase transparency and accountability around required cleanup of PFAS contamination when appropriate, particularly in the case of entities which significantly contribute to the exposure of PFAS in the environment.

In another recent action, the agency issued a final rule in 2024 requiring manufacturers of PFAS and PFAS-containing articles to report information regarding intended use, production volume, disposal, exposure and hazards to the EPA. Reporting requirements were further strengthened by a subsequent rule eliminating an exemption that allowed facilities to avoid reporting small concentrations of PFAS.

The EPA also finalized new limits under the Toxic Substances Control Act for 329 PFAS that have not been made or used within the past several years. The limits ensure that new uses of certain chemicals within the class cannot be manufactured or imported without notification and review. The new rule requires anyone who plans on manufacturing or processing any of the 329 PFAS to submit a Significant New Use Notice to the EPA for review.

In 2024, the agency finalized the water quality criteria for 10 PFAS. The criteria focuses on safeguarding aquatic ecosystems from PFAS contamination. Although the guidelines are non-enforceable, they offer states and tribes guidelines for supporting the development of water quality standards, promoting state-level Clean Water Act programs.

Other 2024 PFAS efforts by the EPA focused on improving monitoring and disposal capabilities. The agency released additional guidance, informed by new research, to assist waste managers in effectively destroying and disposing of PFAS materials.

2025

In 2025, the EPA announced the addition of nine PFAS to the chemicals listed under the Toxic Release Inventory (TRI). These PFAS were added to the TRI under the Fiscal Year 2020 National Defense Authorization Act. These PFAS added include Ammonium perfluorodecanoate, sodium perfluorodecanoate, Perfluoro-3-methoxypropanoic acid, acetic acid, and Fluorotelomer sulfonate acid, anion, potassium salt, ammonium salt and sodium salt. The addition of these nine PFAS to the TRI brings the total of reportable PFAS to 205 for reporting year 2025.

Under the new administration, several new priorities have been set for PFAS. These priorities include:

• Designating an agency lead for managing PFAS.
• Implementing new PFAS testing methods under the Toxic Substances Control Act (TCSA) Section 4.
• Focusing efforts on identifying air-related PFAS.
• Providing annual updates to the PFAS Destruction and Disposal Guidance.
• Creating effluent limitations guidelines (ELGs) for PFAS manufacturers.
• Prioritizing risk-based review of all PFAS.
• Partnering with states to conduct PFAS risk assessments, establish enforcement measures, review and evaluate air petitions, and provide resources to support polluters investigations.

Check out all ongoing EPA actions.

Over the years, state legislative activity around PFAS has increased. In 2018, lawmakers introduced 76 PFAS-related bills and supplemental appropriations. In 2019, states enacted at least 15 bills to address PFAS by providing funding for remediation, regulating the chemicals in drinking water systems, and restricting them in firefighting foam and other products. Vermont, for example, passed a bill setting maximum contaminant levels for PFAS in water and requiring landfills to treat leachate for the chemicals. Minnesota enacted a bill to prohibit the use of certain flame-retardant chemicals in some furniture and children's products and restrict the manufacturing and sale of firefighting foam containing PFAS.

In 2020, state legislatures considered at least 180 bills with language on PFAS. At least 15 states enacted at least 27 bills focused on regulating PFAS in firefighting foam and consumer products, establishing MCLs for PFAS in drinking water and appropriating funds for remediation, among other efforts. For example, California, Colorado, Indiana, Maryland, Michigan, New York and Wisconsin enacted legislation regulating PFAS in firefighting foam and firefighting equipment. New York also established requirements for consumer notices for the use of PFAS and other chemicals in children's products. Connecticut appropriated money for PFAS remediation and cleanup, and Washington appropriated funds to implement recommendations addressing PFAS in drinking water.

In 2021, state legislatures considered at least 196 bills on PFAS, including efforts to eliminate the chemicals from food packaging, ban their use in firefighting foam, establish drinking water standards, and eliminate PFAS from textiles, cosmetics and other products. Some states, including Maine and New York, considered legislation to phase out PFAS in all consumer products. States also considered legislation related to the cleanup of contaminated areas. Washington, for example, allocated funding to implement state agency recommendations to remediate drinking water sources and monitor the results. States also considered policies to address PFAS contamination, including holding companies accountable for the costs involved with cleanup and extending the statute of limitations for lawsuits. For example, New Hampshire considered legislation that would have required corporations to pay for remediation of water contaminated by PFAS.

In 2022, lawmakers considered more than 200 bills with PFAS-related language, with at least 18 states enacting nearly 50 bills on PFAS in firefighting foam, firefighter personal protective equipment, food packaging and environmental remediation. Lawmakers also put forth bills to address PFAS in consumer products like clothing, children's products, cookware, furnishings, cosmetics and ski wax. Other bills of note included a Maryland initiative to eliminate mosquito-control products containing PFAS and legislation in Indiana would have established blood test for those at higher risk of PFAS exposure. Massachusetts considered a bill intended to reduce emissions in the air through a moratorium on PFAS-emitting structures or activities. New athletic turf containing PFAS would have been restricted by language considered by the Vermont legislature.

In 2023, state legislatures considered more than 200 bills that included language on PFAS, with at least 23 states enacting 50 bills on PFAS. These bills included budget appropriations for PFAS remediation or monitoring, take-back programs for fire departments that use and store firefighting foam containing PFAS, addressing PFAS in bottled water, and prohibiting the use of PFAS in certain apparel products and foodware containers.

Examples include Washington state's legislation (HB 1047) to prohibit the intentional use of PFAS substances in cosmetic products, Rhode Island's bill (HB 5861) to require water supply systems that contain PFAS exceeding the interim drinking water standards to implement treatment to reduce the levels of PFAS contaminants, and Maryland's legislation (SB 158) requiring the Department of Agriculture to study the use of PFAS in pesticides in the State and report recommendations to the Governor and certain General Assembly committees.

In 2024, lawmakers considered more than 200 bills with PFAS-related language in at least 36 states. At least 17 of those states enacted more than 40 bills on PFAS. These laws include prohibitions on the sale of products, including playground surfacing materials, and food packaging that contain specified levels of PFAS from being distributed or sold, notification requirements for PFAS in firefighter personal protective equipment, and monitoring of PFAS in public water supplies.

For example: California's (AB 2515) prohibition on the sale of menstrual products that contain PFAS and Connecticut's legislation (SB 292) to establish the PFAS Testing Account to provide money to municipalities and school districts to test for the presence of PFAS contamination in drinking water supplies and remediation any such contamination.

Examples of Statewide Efforts

States are taking the lead to regulate PFAS, as noted above and as seen in efforts underway in Connecticut, Maine, Michigan, New Hampshire, New Jersey, Pennsylvania and Washington.

• California (AB 496)-In 2023, the Legislature passed a bill to prohibit manufacturing, selling or delivering of any cosmetic products with certain ingredients, including PFAS.
• Colorado-In 2024, the Legislature enacted a broad bill banning PFAS in consumer products including cleaning products, certain clothing items and outdoor apparel, cookware and dental floss and menstrual products among others (SB 81). Colorado continues to take action on PFAS by carrying out actions in the 2024 PFAS Action Plan and continuing the PFAS Grant Program for identifying, assessing and reducing impacts of PFAS on human health and the environment.
• Connecticut-Gov. Ned Lamont (D) established the Connecticut Interagency PFAS Task Force that laid out a statewide strategy with a PFAS action plan in 2019. The plan identifies legislative opportunities and recommends actions to protect residents and the environment from the effects of PFAS, including remediation and prevention. In 2020, the Connecticut General Assembly appropriated $2 million (HB 5518) for PFAS cleanup and remediation.
• Maine-In January 2020, the PFAS Task Force published its report and recommendations, and in 2021 became the first state to ban nonessential uses of PFAS (HP 1113) in all products. Using a phased approach, the state will ban the sale of new products containing PFAS starting in 2023 and require manufacturers of products containing intentionally added PFAS to notify the Department of Environmental Protection. In 2022, the state also began to restrict PFAS from pesticides.
• Michigan-In July 2020, the state adopted a set of rules to establish its first PFAS limits for drinking water. The Department of Environment, Great Lakes and Energy developed PFAS regulations that are stricter than the EPA's guidance, limit seven of the chemicals in drinking water and cover 2,700 water supplies in the state. The rule also set new groundwater standards for PFOA (8 parts per trillion, or ppt) and PFOS (16 ppt).
• New Hampshire (HB 1546 )-In 2022, HB 1546 directed the Department of Environmental Services to conduct annual reviews of current research concerning the human health effects of airborne PFAS exposure.
• New Jersey-In 2020, the New Jersey Department of Environmental Protection finalized regulations to set more stringent limits for PFAS in drinking water than those called for in EPA guidance and added the chemicals to the state's list of hazardous substances. Notably, New Jersey issued the first statewide directive ordering companies to address contamination caused by PFAS.
• Pennsylvania-In 2018, the governor issued an executive order calling for the creation of a PFAS action team to develop a plan to reduce the use of firefighting foam, food packaging and other materials that contain the chemicals. The state has since taken steps to establish an MCL for PFAS and has approved grants to address PFAS groundwater contamination. The state has also moved to treat public drinking water supplies affected by PFAS at the Horsham Air Guard Station. The General Assembly (HB 1410;  2019) redirected a portion of future state tax revenue generated on and around the former military installation to a new municipal authority that will use the funds to remediate water contamination and eliminate the surcharges that customers have been paying for clean water.
• Washington-In 2018, the Legislature restricted the use of PFAS chemicals in firefighting foam and personal protective equipment (SB 6413). The Department of Ecology is working with fire departments across the state to collect and safely dispose of foam.

Addressing PFAS in Drinking Water

In 2024 the Environmental Protection Agency finalized the National Primary Drinking Water Regulation , which established the first legally enforceable levels-also known as maximum contaminant levels-for six per- and polyfluoroalkyl substances chemicals: PFOA, PFOS, perfluorononanoic acid, HFPO-DA more commonly known as GenX chemicals, perfluorohexane sulfonic acid and perfluorobutane sulfonate in drinking water. With the standards now in place, states will be focused on developing plans to monitor, remediate and cleanup PFAS. To date, at least one state, Virginia, has introduced legislation related to this.

Example of enacted bill include:

Addressing PFAS in Firefighting Foam

PFOA and PFOS are prevalent in firefighting aqueous film-forming foam solutions, which for decades have been used to extinguish flammable liquid fires, also known as class B fires. Used primarily by military installations and airports, AFFF, as the solutions are known, has been linked to the contamination of water in communities where it was used. States are leading the way to eradicate the use of AFFF, with Washington in 2018 banning the manufacture, sale and distribution of class B firefighting foam, with exemptions for the military, Federal Aviation Administration-certified airports, petroleum refineries and terminals, and certain chemical plants.

Many states have followed suit with usage restrictions and bans; examples of enacted bills include:

Addressing PFAS Cleanup and Remediation

Given that PFAS is one of the world's most intractable pollutants, state legislatures are looking for ways to remediate the chemicals in soil and groundwater and examining the question of who should pay for the cleanup. In recent years, states have allocated funds for cleanup and remediation of contaminated sites. These efforts may include the remediating and monitoring drinking water and groundwater, administering programs to collect and dispose of class B firefighting foam, and working with federal partners to address PFAS contamination at federal facilities. 

Examples of recently enacted bills include: 

Addressing PFAS in Packaging and Consumer Products

PFAS have been used in a variety of products from stain- and water-resistant fabrics and carpeting, to cleaning products, dental floss, clothing and children's toys. Some of the chemicals are also authorized by the Food and Drug Administration for use in cookware, food packaging and food processing equipment. In recent years, states have enacted legislation to address PFAS chemicals in packaging and consumer products. 

Examples of recently enacted bills include: