What AFFF lawsuits are and why they matter

AFFF stands for aqueous film-forming foam, a firefighting chemical used at military bases, airports, and fire training facilities for decades. People exposed to AFFF have filed lawsuits claiming the chemical caused serious health problems, particularly certain cancers and thyroid disease. These lawsuits are still moving through courts, and the landscape has shifted significantly in the past two years.

If you were exposed to AFFF through your work, military service, or proximity to a facility that used it, understanding where these cases stand now matters for deciding whether to pursue a claim. The legal situation is not static — settlements have been reached, new cases continue to be filed, and the science linking AFFF to injury is still being documented in court.

Key Takeaways

  • AFFF contains PFOA and PFOS, chemicals that do not break down in the body and have been linked to kidney cancer, testicular cancer, thyroid disease, and other conditions in scientific studies.
  • Multiple lawsuits are proceeding in federal court, state courts, and through individual claims against manufacturers like 3M and Chemours, with some settlements already reached and others still in negotiation.
  • You do not need to have filed a claim yet to preserve your right to sue — statutes of limitations vary by state and by injury type, but many states allow claims years after exposure ends.
  • Proving exposure and causation requires medical records, employment or military records showing you were at a location using AFFF, and documentation of your diagnosis and when it appeared.
  • An attorney who handles AFFF cases can review your specific exposure history and health timeline to determine whether your situation fits the pattern of claims currently being pursued.

The chemicals in AFFF and what research shows

AFFF contains PFOA (perfluorooctanoic acid) and PFOS (perfluorooctane sulfonate), synthetic chemicals that repel water and oil. These chemicals persist in the body and the environment — they do not break down naturally, which is why they are sometimes called "forever chemicals." Once in your bloodstream, they accumulate over time.

Scientific studies have linked PFOA and PFOS exposure to kidney cancer, testicular cancer, thyroid disease, liver damage, high cholesterol, and immune system suppression. The evidence is strong enough that the EPA has set drinking water advisories for these chemicals and the Department of Defense has acknowledged the contamination problem at military installations. Courts have accepted this scientific evidence in AFFF cases, which is why lawsuits are moving forward.

The lag between exposure and diagnosis matters legally. You might have been exposed to AFFF for years without knowing it, and the health effect might not appear until years later. This is why statutes of limitations in AFFF cases often run from the date you were diagnosed, not the date you were exposed.

Where AFFF lawsuits stand in federal and state courts

Most AFFF cases have been consolidated into a multidistrict litigation (MDL) in federal court in South Carolina, which means hundreds of individual cases are being managed together rather than filed separately across the country. This speeds up discovery — the process of exchanging evidence — and allows for more efficient settlement negotiations. However, cases also proceed in state courts and through individual claims against specific manufacturers.

As of 2024, several major manufacturers have reached settlements or agreed to pay claims. 3M, one of the largest AFFF producers, has faced multiple settlements. Chemours, another major manufacturer, has also negotiated settlements in some jurisdictions. These settlements do not mean every exposed person automatically receives money — you typically must file a claim, provide proof of exposure and injury, and meet the settlement's specific criteria.

New cases are still being filed, and the litigation landscape continues to shift. Some states have also begun their own investigations or regulatory actions against AFFF manufacturers, which can affect the timeline and terms of settlements available to residents of those states.

Who has been exposed and where exposure typically happens

Military personnel stationed at bases where AFFF was used in training or firefighting operations face the highest exposure risk. This includes active duty, reserve, and National Guard members, as well as civilian employees and contractors at military installations. Airports and airfields also use AFFF, so airport firefighters, maintenance workers, and people who worked in those facilities may have been exposed.

Fire training academies and facilities used AFFF for decades to train firefighters. Instructors, trainees, and facility staff at these locations were regularly exposed. Some civilian firefighting operations also used AFFF, though military and airport use accounts for the majority of documented exposure.

Exposure can also occur through contaminated drinking water near these facilities. If you lived near a military base, airport, or fire training facility and the water supply became contaminated with PFOA or PFOS from AFFF use, you may have been exposed without knowing it. Proving this type of exposure requires water testing records and documentation of where you lived during the exposure period.

What you need to prove in an AFFF claim

To pursue an AFFF lawsuit or claim, you need to establish three things: that you were exposed to AFFF, that you developed a health condition linked to PFOA or PFOS, and that the exposure likely caused the condition. This is more straightforward for some people than others, depending on your work history and medical records.

Exposure documentation might include military service records showing you were stationed at a base where AFFF was used, employment records from an airport or fire academy, or water testing data if you lived near a contaminated site. The more specific your location and dates, the stronger your claim. If you worked in firefighting or fire training, your employer's records of AFFF use on the property help establish exposure.

Medical documentation requires a diagnosis of a condition linked to PFOA or PFOS — kidney cancer, testicular cancer, thyroid disease, liver disease, or high cholesterol are the most common. Your medical records should show when you were diagnosed and what testing confirmed the diagnosis. The timeline matters: if you were exposed for years and then diagnosed years later, that pattern is consistent with how these chemicals work.

Causation is the hardest part to prove. You do not need to prove that AFFF was the only cause of your illness, but you do need to show that exposure to PFOA or PFOS was a substantial factor. This is where scientific evidence and informed testimony come in. Your attorney will work with medical experts who can review your exposure history, your medical records, and the scientific literature to build this argument.

Settlement structures and what compensation looks like

AFFF settlements that have been reached so far typically work through a claims process. You submit documentation of your exposure and diagnosis, the settlement administrator reviews it against the settlement criteria, and if approved, you receive a payment. The amount varies depending on the specific settlement, your diagnosis, and the severity of your condition.

Settlements are not one-time offers — they are negotiated agreements that set out how much money is available, who is may be able to access, and how claims are evaluated. Some settlements have caps on the total amount available, which means if many people file claims, each person's share may be smaller. Others are structured differently, with set amounts for specific diagnoses.

If you settle through a claims process, you typically sign a release, meaning you agree not to sue that defendant again for the same exposure. This is why it matters to understand what settlement you are entering before you agree — you want to make sure it covers your specific situation and that you are not giving up rights to pursue other defendants or other claims.

How statutes of limitations work in AFFF cases

A statute of limitations is a important date for filing a lawsuit. In AFFF cases, the clock usually starts from the date you were diagnosed with a condition, not the date you were exposed. This is called the "discovery rule" — the idea that you could not have sued before you knew you were injured.

Statutes of limitations vary by state and by injury type. Some states allow three years from diagnosis, others allow four or more. A few states have longer periods for certain cancers. This means you may have years after your diagnosis to file a claim, even if you were exposed decades ago. However, you should not wait — the longer you delay, the harder it becomes to gather employment records, medical records, and other evidence of exposure.

If you are unsure whether your statute of limitations has passed, an attorney who handles AFFF cases can review your diagnosis date and your state's laws. This is a question worth asking early, because missing a important date can permanently bar your claim.

Frequently Asked Questions

Do I have to join the federal MDL or can I sue on my own?

You can do either. The MDL in South Carolina is where most cases are consolidated, but you can also file in state court or pursue a claim through a settlement agreement. An attorney can advise which route makes sense for your situation based on where you live, where you were exposed, and which defendants you want to pursue.

What if I was exposed but have not been diagnosed with anything yet?

You cannot file a lawsuit for an injury that has not happened. However, some people who were exposed choose to monitor their health and consult with an attorney if a diagnosis appears later. Because statutes of limitations run from diagnosis, not exposure, you will have time to file once a condition develops — but you should document your exposure history now while records are easier to gather.

How much money do AFFF settlements typically pay?

Settlement amounts vary widely depending on the specific settlement agreement, your diagnosis, and the severity of your condition. Some settlements pay a set amount for each approved claim, while others use a formula based on medical factors. Without knowing which settlement applies to your case, no specific number can be quoted. An attorney reviewing your exposure and diagnosis can give you a realistic range based on settlements currently available.

Can I file a claim if I was exposed through contaminated drinking water?

Yes, but proving exposure is harder. You will need water testing data showing PFOA or PFOS contamination, documentation of where you lived during the contamination period, and medical records showing your diagnosis. Some settlements specifically include people exposed through water contamination, while others focus on occupational exposure. An attorney can determine whether your exposure history fits an available claim.

What happens if a settlement runs out of money before my claim is processed?

Some settlements have a fixed total amount, and if claims exceed that amount, each approved claimant receives a proportional share rather than the full amount. This is called a "pro rata" distribution. Other settlements are structured differently. You should understand the settlement terms before you agree to them, so you know what to expect if the fund is oversubscribed.