Missouri’s Asbestos Filing Deadlines Today

Under Missouri law, asbestos personal-injury claims must be filed within 5 years from the date of diagnosis (Mo. Rev. Stat. § 516.120). Wrongful-death claims have their own 3-year clock from the date of death (Mo. Rev. Stat. § 537.100). These are independent deadlines.

About the two deadlines: Missouri keeps the personal-injury clock (Mo. Rev. Stat. § 516.120) and the wrongful-death clock (Mo. Rev. Stat. § 537.100) on separate tracks. The 5-year personal-injury deadline runs from the date of diagnosis and applies to the diagnosed person’s own claim while they are alive. The 3-year wrongful-death deadline runs from the date of death and applies to surviving family members. The two are independent — preserving one does not extend the other, and a Missouri asbestos attorney can keep both options open as the situation evolves.

Recent Legislative History

Two recent legislative attempts to shorten Missouri’s asbestos filing deadlines both failed in the state Senate:

  • HB 68 (2025) would have cut the personal-injury filing deadline from 5 years to 2 years. The bill did not pass.
  • HB 1664 (2026) would have cut the deadline from 5 years to 3 years. The bill also did not survive in the Senate.

The current 5-year personal-injury and 3-year wrongful-death statutes remain in force. Both deadlines are still measured from the dates above.

Why Early Action Still Matters

Even with a 5-year window, the practical deadline is much shorter. Building a mesothelioma case requires:

  1. Identifying all asbestos exposure sources and job sites
  2. Locating surviving coworker witnesses — many are in their 70s and 80s
  3. Documenting product brands and equipment manufacturers
  4. Filing claims against applicable bankruptcy trusts
  5. Gathering medical records, employment records, and union documentation

These steps take time. Records disappear. Every month of delay narrows your options.

The Clock Starts at Diagnosis (or Date of Death)

For personal-injury claims, the 5-year period runs from the date of medical diagnosis — not when symptoms began, not when you learned of the legal claim, and not when exposure occurred.

For wrongful-death claims brought by surviving family members, the 3-year period runs from the date of death — a separate starting point from the personal-injury clock.

Reconstructing Your Worksite History

Many workers and families hesitate because they cannot fully remember every site where they worked — especially when exposure occurred 40, 50, or even 60 years ago. This is expected and is not a barrier to filing. There are teams who specialize specifically in worksite history reconstruction, using records that still exist even when personal memory has faded.

The reconstruction process typically draws on:

  • Union pension fund records — Local 1 (Insulators), Local 562 (Pipefitters), Local 27 (Boilermakers) and other union locals maintained hour records by employer and year; these records can document every facility a member worked at
  • Social Security earnings records — a request to the SSA provides employer-by-employer income history going back decades, often identifying employers a worker had forgotten
  • Publicly filed co-worker depositions — other workers who testified in prior asbestos cases frequently named specific products and conditions at specific facilities; those depositions are in the public record and can corroborate an exposure history
  • OSHA inspection records — federal records document specific asbestos-containing products found at specific facilities during inspection visits
  • Historical photographs and union newsletters — industrial photos from the Missouri Historical Society, Washington University, and union hall archives have documented working conditions and materials at major Missouri and Illinois facilities

Old pay stubs, a union membership book, a pension statement, or a single photograph can be the starting point. Many cases have been built on far less. Do not assume an incomplete memory means no case.

What To Do Now

If you or a family member has received a mesothelioma diagnosis in Missouri:

  • Document the diagnosis date — obtain pathology reports, hospital records, and physician correspondence
  • Preserve any employment records you have — union cards, W-2s, pay stubs, retirement records, pension statements
  • Write down every jobsite you remember — every facility, regardless of how briefly you worked there; an attorney or their investigative team will help fill in the gaps
  • Consult a licensed Missouri asbestos attorney — they can evaluate whether personal-injury and/or wrongful-death claims apply to your situation