Montana Tort Reform laws determine how much time you have to file a mass tort claim, whether your state caps the damages you can recover, and how your own fault percentage affects your payout.
This Montana tort reform guide covers every rule that matters if you are considering a mass tort lawsuit — statute of limitations deadlines, damage caps, comparative fault, and which major active lawsuits affect Montana residents the most. Understanding Montana tort reform before you talk to a lawyer helps you know what to expect.
Verified against Montana statutes and official sources as of May 2026.
In This Montana Tort Reform Guide:
Montana Tort Reform Statute of Limitations
The statute of limitations is the deadline to file a lawsuit. Under Montana tort reform rules, the time limit depends on the type of injury. Missing your deadline means you lose your right to sue entirely, regardless of how strong your case may be.
| Injury Type | Time Limit |
|---|---|
| Personal Injury | 3 years from date of injury under MCA 27-2-204. |
| Wrongful Death | 3 years from date of death. |
| Product Liability | 3 years from date of injury under the general tort statute MCA 27-2-204, subject to a 10-year statute of repose enacted by SB 216 (2023) running from the date the product was first sold, leased, or placed into the stream of commerce. |
| Medical Malpractice | 2 years from date of discovery of injury or when injury should have been discovered through reasonable diligence under MCA 27-2-205, with a hard 5-year statute of repose from date of the alleged malpractice. |
Personal injury details: For minors, the statute is tolled until the injured person turns 18, then the 3-year clock begins. Intentional torts (assault, battery, defamation, false imprisonment) have a 2-year SOL.
Wrongful death details: Exception: if the wrongful death resulted from a homicide, the SOL extends to 10 years from date of death under MCA 27-2-204(2).
Product liability details: Discovery rule applies to the 3-year SOL but does NOT toll the 10-year repose period.
Medical malpractice details: The 5-year repose is tolled if the provider knowingly concealed the injury or used threats, intimidation, or fraud to prevent a lawsuit. Montana also requires mandatory pre-suit screening through the Montana Medical Legal Panel before any malpractice case can be filed in court.
Discovery rule: YES. Montana applies the discovery rule to personal injury and product liability claims. The SOL begins when the plaintiff discovers or through the use of reasonable diligence should have discovered the injury. For medical malpractice, the discovery rule is built into the 2-year SOL under MCA 27-2-205. However, the discovery rule does NOT extend beyond hard statutes of repose (5 years for med mal, 10 years for products, 10 years for construction).
Statute of repose: YES. Three separate statutes of repose: (1) Product liability — 10 years from date product was first sold or leased, enacted by SB 216 (2023). Exceptions for asbestos/latent respiratory disease with latency over 10 years, government-mandated product recalls, seller concealment of defects, real property improvements, and products with written warranties exceeding 10 years (then 2 years after warranty period).
(2) Medical malpractice — 5 years from date of injury under MCA 27-2-205, tolled for provider concealment or fraud. (3) Construction defects — 10 years from completion of improvement under MCA 27-2-208, an absolute bar with no tolling for late discovery.
These Montana tort reform deadlines apply to most mass tort claims. However, some MDLs have their own rules — for example, the Camp Lejeune Justice Act created a special two-year filing window.
Always verify your specific deadline with a licensed attorney, as Montana tort reform statutes may have exceptions not listed here.
Montana Tort Reform Damage Caps
Damage caps limit how much money you can recover in a lawsuit, even if a jury awards you more. Montana tort reform damage cap rules affect mass tort settlements and verdicts directly.
Understanding these limits helps you set realistic expectations for potential compensation under Montana tort reform law.
| Damage Type | Cap |
|---|---|
| Non-Economic (Pain & Suffering) | NO CAP on compensatory damages (economic or non-economic) for general personal injury cases such as car accidents, slip-and-fall, or product liability. |
| Punitive Damages | Capped at 10000000 or 3 percent of the defendants net worth, whichever is less, under MCA 27-1-220. |
| Total Damages | NO CAP on total damages in general tort cases. |
| Medical Malpractice | YES — separate noneconomic damages cap for medical malpractice under MCA 25-9-411 as amended by HB 195 (2025). |
Non-economic damages details: Montana does not cap pain and suffering damages in non-medical-malpractice tort cases.
Punitive damages details: This cap does NOT apply to class action lawsuits. Additionally, 50 percent of any punitive damages award is paid to the state of Montana general fund and 50 percent goes to the plaintiff. Punitive damages require clear and convincing evidence that the defendant was guilty of actual fraud or actual malice.
Medical malpractice cap details: Schedule: 300000 effective March 27 2025; 350000 effective January 1 2026; 400000 effective January 1 2027; 450000 effective January 1 2028; 500000 effective January 1 2029; then 2 percent annual increases starting January 1 2030. The current 2026 cap is 350000. This cap applies only to noneconomic damages — there is no cap on economic damages or overall damages in med mal cases. The previous cap was 250000 (fixed, no inflation adjustment).
Montana tort reform caps can significantly reduce your recovery in a mass tort case. If Montana caps non-economic damages, your pain and suffering award is limited regardless of injury severity.
Some caps have been challenged as unconstitutional in Montana courts — check with a local attorney for the current status of any Montana tort reform cap.
Montana Tort Reform Comparative Fault Rule
Comparative fault determines whether you can recover damages if you share some responsibility for your injuries. Under Montana tort reform rules, defendants in mass tort cases often argue that the plaintiff contributed to their own harm (for example, by continuing to use a product after a recall).
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Montana follows a modified comparative fault (51% bar) system. You can recover damages as long as your fault does not reach 51% or more. If you are 50% at fault, you can still recover (reduced by 50%). If you are 51% or more at fault, you recover nothing. This is the most common system in the United States.
Under MCA 27-1-702, a plaintiff may recover damages as long as their contributory negligence is not greater than the combined negligence of all other parties. If a plaintiff is 30 percent at fault, their damages are reduced by 30 percent but they still recover. If a plaintiff is 50 percent at fault, they recover 50 percent of damages.
If a plaintiff is 51 percent or more at fault, they are completely barred from recovery and receive nothing. SB 216 (2023) expanded comparative fault principles to strict liability and breach of warranty product liability claims.
Joint and several liability: Modified joint and several liability under MCA 27-1-703. A defendant found more than 50 percent at fault is jointly and severally liable for the full amount of damages (less plaintiffs share). A defendant found 50 percent or less at fault is severally liable only and responsible only for their own percentage of fault. Joint tortfeasors have a right of contribution.
Notable Montana Mass Tort Verdicts & Settlements
(1) W.R. Grace Libby Asbestos — ongoing since 1990s, 250000000 Superfund cleanup settlement plus 18500000 DEQ settlement in 2023 bankruptcy resolution, over 200 deaths and 1000 illnesses from vermiculite mine contamination in Libby MT. (2) Montana Opioid Settlements — 80000000 from Cardinal McKesson and AmerisourceBergen distributors plus Johnson and Johnson (2022), plus 16000000 from Purdue Pharma and Sackler family (2025), plus 4000000 from Kroger (2024), plus 2500000 from eight additional drug makers (2025).
(3) Medical malpractice verdict — 3087000 jury verdict (2022) involving woman who suffered blindness from complications with eye lenses.
Note: Individual settlement and verdict amounts vary dramatically based on the specific facts of each case. These examples are provided for general context only and do not predict what you might recover.
Active Mass Tort Cases Affecting Montana Residents
Several major active Multidistrict Litigation (MDL) cases have significant numbers of plaintiffs from Montana:
(1) AFFF/PFAS — Malmstrom Air Force Base near Great Falls is a major PFAS contamination site with PFOS levels of 1900 parts per trillion found in groundwater, significantly exceeding EPA limits, affecting military personnel and surrounding communities. (2) Opioids — Montana has been significantly affected by the opioid crisis and has received over 100000000 in combined settlements from manufacturers and distributors. (3) Asbestos — Libby Montana is one of the most significant asbestos contamination sites in US history due to W.R.
Grace vermiculite mining, with ongoing claims through the WR Grace asbestos trust. (4) Camp Lejeune — GENERAL PARTICIPATION, Montana veterans who served at Camp Lejeune may file claims under the PACT Act. (5) Roundup — GENERAL PARTICIPATION, Montana has significant agricultural use of glyphosate-based herbicides.
If you live in Montana and were affected by any of these products or exposures, you may be eligible to file a claim. Montana tort reform deadlines and damage caps still apply to your case, so check our individual MDL pages for specific eligibility criteria.
Montana Tort Reform Legislation
(1) SB 216 (2023) — Comprehensive product liability reform. Enacted 10-year statute of repose for product liability, adopted sealed container defense for product sellers, expanded comparative fault to strict liability and breach of warranty claims, allowed defendants to assert plaintiffs damages were caused by released parties. (2) HB 195 (2025) — Medical malpractice noneconomic damages cap increase from 250000 to 500000 phased over 5 years with 2 percent annual inflation adjustment starting 2030. (3) SB 511 (2025) — Litigation Financing Transparency and Consumer Protection Act.
Requires mandatory disclosure and registration of third-party litigation funders, caps litigation financing fees at 25 percent of monetary relief, prohibits foreign adversaries from litigation financing in Montana, applies to class actions. (4) SB 39 (2025) — Attorney fee reform requiring itemized billing and proportional fee awards. (5) HB 791 (2025) — First-in-nation public nuisance liability reform codifying public and private nuisance law to prevent use of nuisance theory as a super tort against sellers of lawful products. Montana was named ATRA 2025 Tort Reform Trailblazer.
These Montana tort reform laws directly affect how mass tort claims are filed, what damages you can recover, and how long you have to act.
Always verify the current status of any law with the Montana State Bar Association or a licensed attorney.
Additional Montana Tort Rules
(1) Montana Medical Legal Panel — mandatory pre-suit screening panel for all medical malpractice claims under MCA 27-6-101 et seq. No malpractice lawsuit may be filed in any Montana court before an application is submitted to the Panel and its decision is rendered. Created by the Montana Medical Legal Panel Act of 1977. (2) Punitive damages split — 50 percent of all punitive damages awards go to the Montana state general fund, 50 percent to the plaintiff, under MCA 27-1-221.
(3) Sealed container defense — product sellers (as opposed to manufacturers) have a defense if the product was sold in a sealed container and the seller had no knowledge of the defect, enacted by SB 216 (2023).
(4) Asbestos exception to statute of repose — the 10-year product liability statute of repose does not apply where the product causes a respiratory or malignant disease with a latency period exceeding 10 years. (5) Litigation financing disclosure — all third-party litigation funding agreements must be disclosed in litigation and funders must register with the Secretary of State under SB 511 (2025). (6) Montana is a tort state for auto insurance, not a no-fault state.
Montana Tort Reform Resources & Contacts
- Montana State Bar Association: https://www.montanabar.org/
- Montana Attorney General: https://dojmt.gov/
- Montana Courts: https://courts.mt.gov/
- JPML (Federal MDL Data): jpml.uscourts.gov
- NCSL Tort Reform Tracker: ncsl.org
- Cornell LII — Tort Law: law.cornell.edu
This Montana tort reform guide was last verified against official sources in May 2026. If you notice outdated information, please contact us.
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Attorney Advertising. The information on this page is provided for general informational purposes only and does not constitute legal advice. No attorney-client relationship is created by accessing or using this content. Every case is unique, and results depend on the specific facts and circumstances involved. Past settlement amounts and case outcomes do not guarantee similar results in your case. If you believe you have a legal claim, you should consult with a licensed attorney in your jurisdiction who can evaluate your specific situation.