Paraquat Lawsuit Statute of Limitations [By State]

Paraquat Lawsuit Statute of Limitations by State

A statute of limitations is the legal deadline for filing a lawsuit, and once that deadline expires, the claim may be barred.

In paraquat Parkinson’s disease lawsuits, those deadlines usually come from each state’s personal injury and product liability laws, even when the case may later be transferred to join the Paraquat multidistrict litigation (MDL).

The MDL helps coordinate cases in federal court, but it does not create one national filing deadline for every paraquat claim, and people may still be subject to different rules in state and federal courts.

In many cases, the timing question involves when the injury was diagnosed or when the connection between Parkinson’s disease and paraquat exposure reasonably should have been discovered.

Some states also recognize exceptions or tolling rules that may affect the deadline, including wrongful death claims, delayed discovery issues, incapacity, or other case-specific circumstances.

Because those rules can change the outcome of a claim, it is important to speak with a lawyer about the statute of limitations that may apply to your case.

States with a One-Year Statute of Limitations

Some states give plaintiffs a much shorter filing window than others, which can matter in a paraquat Parkinson’s lawsuit where diagnosis and causation questions often develop over time.

Kentucky and Tennessee are the clearest current examples of states with a one-year limitations period for personal injury actions, while Louisiana moved to a two-year period for delictual actions effective July 1, 2024.

A claimant may still need a case-specific review because accrual, discovery issues, wrongful death rules, and other tolling questions can affect how the deadline is applied in an individual Paraquat case.

States with a one-year statute of limitations include:

• Kentucky
• Tennessee

States with a Two-Year Statute of Limitations

Many states use a two-year filing window for personal injury actions, which can be critical for people evaluating paraquat Parkinson’s claims after diagnosis.

That state deadline may still control even if the case is later transferred to join the federal Paraquat litigation, because the MDL does not create one uniform national statute of limitations.

A case-specific review still matters because discovery rules, wrongful death claims, and other tolling issues can affect how the deadline applies in an individual case.

States commonly identified with a two-year statute of limitations include:

• Alabama
• Alaska
• Arizona
• California
• Colorado
• Connecticut
• Delaware
• Florida
• Georgia
• Hawaii
• Idaho
• Illinois
• Indiana
• Iowa
• Kansas
• Louisiana
• Minnesota (Minnesota applies a two-year deadline to general personal injury claims, though some strict product liability theories may involve a four-year period.)
• Nevada
• New Jersey
• Ohio
• Oklahoma
• Oregon
• Pennsylvania
• Texas
• Virginia
• West Virginia

States with a Three-Year Statute of Limitations

States with a three-year filing period can still present serious timing issues for paraquat victims, especially in cases where symptoms developed gradually and the person did not immediately realize that exposure to paraquat caused or may have contributed to Parkinson’s disease.

A three-year statute may sound longer than a one-year or two-year deadline, but that window can close faster than many families expect once diagnosis, discovery, and accrual questions are analyzed.

Because state-specific rules can still affect when the clock starts, these states are best understood as general three-year jurisdictions rather than automatic deadlines in every Paraquat case.

States with a three-year statute of limitations generally include:

• Arkansas
• Maryland
• Massachusetts
• Michigan
• Mississippi
• Montana
• New Hampshire
• New Mexico
• New York
• North Carolina
• Rhode Island
• South Carolina
• South Dakota
• Vermont
• Washington
• Washington, D.C.
• Wisconsin

States with a Four-Year Statute of Limitations

Some states provide a four-year window to file a claim, which may give more time for individuals who were later diagnosed with Parkinson’s disease after prolonged exposure.

Even with a longer statute, Paraquat cases still require careful timing analysis because the filing deadline may depend on when the injury was discovered or when symptoms were first connected to paraquat.

These states are generally treated as four-year jurisdictions for baseline personal injury and product liability claims, but individual case facts can still affect how the deadline applies.

States with a four-year statute of limitations generally include:

• Nebraska
• Utah
• Wyoming

States with a Five-Year Statute of Limitations

Only one state provides a five-year filing window, which may offer additional time for individuals who believe paraquat exposure caused or contributed to their Parkinson’s disease.

Even with a longer statute of limitations, the timing of a claim can still depend on when the injury was diagnosed or when the connection to paraquat was reasonably identified.

The state with a five-year statute of limitations is:

• Missouri

States with a Six-Year Statute of Limitations

Some states provide a six-year filing period, but that does not remove the need for a prompt review after a Parkinson’s diagnosis or after a family begins looking into a possible Paraquat claim.

Even in a longer-limitations state, accrual, discovery, wrongful death rules, and other state-specific issues can still affect how the deadline is applied.

These states are generally treated as six-year jurisdictions for baseline limitations purposes.

States with a six-year statute of limitations generally include:

• Maine
• North Dakota

Paraquat Lawsuit Overview

The herbicide paraquat is a widely used weed killer in commercial agriculture, and it has become the focus of nationwide litigation involving individuals who were exposed to paraquat through years of occupational use.

Many of these cases involve agricultural workers who handled the product directly or worked in environments where paraquat use was routine.

The lawsuits center on claims that this toxic chemical created long-term neurological risks that were not adequately disclosed to users.

At the center of the litigation are allegations that manufacturers, including Syngenta and Chevron, failed to warn users about the claimed connection between paraquat exposure and Parkinson’s disease.

These cases are based on scientific evidence examining whether repeated exposure to paraquat may damage the brain and contribute to the development of a progressive neurodegenerative disorder.

In court, paraquat lawsuits allege that long-term exposure increased the risk of Parkinson’s disease and that paraquat caused Parkinson’s disease in certain individuals, though that issue remains contested.

To manage the volume of claims, Paraquat lawsuits have been consolidated into a federal multidistrict litigation, where cases are coordinated to address shared factual and legal issues.

Each claim is still evaluated on an individual basis within the MDL, and there is no uniform settlement amount applied across all cases.

Paraquat lawsuits allege:

• Paraquat manufacturers failed to warn users about the alleged link between paraquat exposure and Parkinson’s disease
• Long-term occupational exposure placed agricultural workers and applicators at increased risk
• Repeated handling, mixing, and spraying led to ongoing contact with the chemical
• Exposure could occur through drift, contaminated equipment, or residue on clothing and work surfaces
• Plaintiffs developed Parkinson’s disease after years of working with or around paraquat products
• Individuals suffered losses tied to medical treatment, reduced earning capacity, and long-term disability

Paraquat’s Health Risks: Links to Parkinson’s Disease

Paraquat has been associated with several serious health problems, including acute paraquat poisoning, lung injury, kidney damage, and other systemic complications, but the issue at the center of most current litigation is Parkinson’s disease.

The paraquat herbicide is still used in the United States, yet it is restricted to certified applicators because of its high toxicity, and even small accidental ingestion can be fatal.

Occupational and environmental toxic exposure has drawn the most scrutiny, particularly among farmworkers, applicators, and people living near treated land where others sprayed paraquat over long periods.

Research in humans, animals, and laboratory models has examined whether paraquat can trigger oxidative stress and neurological injury consistent with Parkinson’s pathology.

A large body of published literature now exists on this issue, including human epidemiology studies involving agricultural workers and residents near agricultural areas.

The scientific and regulatory debate is still active, but the basic concern behind these cases is that repeated paraquat exposure may increase the risk of Parkinson’s disease in some exposed populations.

That question remains the most important long-term health issue tied to paraquat in the current lawsuits.

Key statistics about paraquat and Parkinson’s risk:

• Up to 250% higher risk: NIH-linked reporting on the Farming and Movement Evaluation study has been widely cited as finding that people who used paraquat had about a 2.5-fold higher risk of Parkinson’s disease in that cohort.
• Restricted-use only: Paraquat products in the United States are limited to certified pesticide applicators because of acute toxicity.
• Fatal in very small amounts: One small accidental sip can be fatal, and there is no antidote for acute poisoning.
• Large research record: A National Toxicology Program scoping review identified 8,685 references, with 458 sources included as relevant to paraquat exposure and the potential development of Parkinson’s disease.
• Human studies are substantial: That same review identified 24 human epidemiological studies, with most involving agricultural workers or people living in or near agricultural areas.

What is the Paraquat Products Liability Litigation?

The Paraquat Products Liability Litigation is the federal proceeding that consolidates lawsuits alleging that exposure to the toxic herbicide paraquat contributed to Parkinson’s disease.

It is organized as an MDL, or multidistrict litigation, which allows one court to manage shared pretrial issues across many related cases filed around the country.

The Judicial Panel on Multidistrict Litigation created this proceeding in 2021 and sent the cases to the Southern District of Illinois.

This structure is common in large-scale mass tort litigation because it helps coordinate discovery, expert disputes, and other recurring legal questions without forcing every plaintiff to litigate those issues separately.

The litigation is pending before Chief Judge Nancy J. Rosenstengel, who serves as the Paraquat MDL judge.

Early paraquat trials were disrupted after the court excluded a key plaintiffs’ expert in 2024, but the MDL has remained active and later moved into a stay while settlement work continued.

The MDL is not a class action lawsuit.

It does not turn all claims into one case, and each plaintiff still has to prove individual exposure, diagnosis, and damages.

It also does not create a single automatic payout, because Paraquat claims are evaluated on their own facts even when they move through the same coordinated federal process.

Projected Paraquat Lawsuit Settlement Amounts

Projected paraquat settlement amounts vary widely because no single payout applies to every claim, and each case is evaluated on its own facts.

Current estimates place the average paraquat settlement range somewhere between $20,000 and more than $1,000,000, depending on the severity and progression of Parkinson’s disease, the length and intensity of exposure, the quality of medical and work records, and the strength of causation proof.

Any discussion of an “average” figure should be treated as a rough midpoint in a broad range, not a number that reflects what most plaintiffs will receive.

The projected value of a case can also shift as the litigation develops, especially while courts and the parties continue to work through settlement negotiations and broader settlement frameworks.

Settlement estimates in the Paraquat litigation depend less on a universal formula and more on the specific medical, occupational, and evidentiary profile of each claim.

Do You Qualify for the Paraquat Lawsuit?

Meeting the basic paraquat lawsuit qualifications usually depends on two issues: whether you were exposed to paraquat and whether you were later diagnosed with Parkinson’s disease.

In most cases, that means showing an exposure history involving the pesticide paraquat dichloride through agricultural work, pesticide application, equipment handling, or work in treated fields.

A qualifying claim also needs medical proof of Parkinson’s disease, since that diagnosis remains the central injury in the litigation.

To file a Paraquat lawsuit, you will need to gather evidence showing both exposure to the herbicide and a Parkinson’s diagnosis.

Even if a person appears eligible to file, the timing of the claim still matters because the statute of limitations may limit how long they have to take legal action.

That makes it important to evaluate both the facts of the case and the filing deadline at the same time.

People who may qualify often include:

• Licensed applicators who mixed, loaded, or sprayed paraquat over time
• Farmworkers and agricultural laborers with repeated occupational exposure
• Workers who handled contaminated equipment, containers, or clothing
• Individuals with records showing a clear exposure history and a Parkinson’s diagnosis
• Families pursuing claims tied to a loved one’s diagnosis or death, where state law allows it
• Claimants who are still within the statute of limitations that applies to their case

A Paraquat lawsuit may provide financial relief for families dealing with long-term medical costs, lost income, and other expenses tied to Parkinson’s disease.

Qualification is not determined by diagnosis alone, because the case must also be supported by evidence and filed within the applicable legal deadline.

Paraquat lawsuit attorneys can review the medical records, work history, and timeline of the claim to determine whether the person may still have a viable case.

Evidence in Paraquat Parkinson’s Lawsuit Claims

Evidence is central in a paraquat case because it helps show both how the exposure happened and how that exposure relates to a later Parkinson’s diagnosis.

The strongest claims usually include records that connect paraquat exposure to a specific job history, work environment, or pattern of repeated agricultural contact over time.

Medical documentation matters just as much, because it shows diagnosis, symptoms, treatment, and the progression of Parkinson’s disease.

Timing records are also important on a statute-of-limitations page, since evidence can help establish when the injury was diagnosed and when the claim may have accrued.

Evidence in paraquat Parkinson’s lawsuit claims may include:

• Job history showing farm work, pesticide application, or other agricultural employment
• Medical records confirming a Parkinson’s disease diagnosis
• Records of neurological treatment, testing, and follow-up care
• Receipts showing the purchase of paraquat products
• Pesticide application logs or work records identifying paraquat use
• Applicator licenses, certifications, or training records
• Employment files showing where and when the claimant worked
• Witness statements from coworkers, supervisors, or family members familiar with the exposure history
• Photographs, labels, containers, or other product identification materials
• Personal notes, calendars, or timelines documenting exposure and symptoms

Damages in Paraquat Lawsuits

Damages are the recognized categories of loss a plaintiff seeks to recover in a lawsuit.

In a Paraquat case, lawyers assess damages by reviewing the diagnosis, the course of the disease, the medical care required, the effect on work, and the overall impact on daily life.

That analysis usually involves medical records, employment and income history, projected future care needs, and evidence showing how Parkinson’s disease has changed the person’s physical and cognitive functioning.

Lawyers use those records to calculate both financial losses and the harder-to-measure personal losses tied to a progressive neurological condition.

The goal is to present a damages claim that reflects the full scope of harm caused by the injury, not just the bills that have already been incurred.

Damages in Paraquat lawsuits may include:

• Past medical expenses
• Future medical expenses
• Prescription medication costs
• Neurology visits and specialist care
• Physical therapy and rehabilitation costs
• Lost wages
• Reduced earning capacity
• Home health care or assisted living costs
• Travel expenses for treatment
• Out-of-pocket care expenses
• Pain and suffering
• Emotional distress
• Loss of enjoyment of life
• Disability and loss of independence
• Wrongful death damages, when applicable

TorHoerman Law: Hire an Experienced Paraquat Lawyer

If you or a loved one developed Parkinson’s disease after working with or around paraquat, taking the next step starts with understanding whether your claim is still within the applicable statute of limitations.

Filing deadlines vary by state and can affect whether a case may proceed, even when there is a clear exposure history and diagnosis.

Speaking with experienced paraquat lawsuit lawyers can help clarify how the timing rules apply to your specific situation and what options may still be available.

TorHoerman Law helps individuals nationwide in Paraquat litigation and evaluates each case based on its medical, occupational, and legal facts.

Our law firm offers free, no-obligation consultations to review potential claims and explain how the process works.

Paraquat cases are handled on a contingency fee basis, meaning there are no legal fees unless compensation is recovered.

Contact TorHoerman Law today to speak with our paraquat lawsuit lawyers and determine whether you may still be eligible to file a claim.