Pennsylvania Act 121 of 2024: Workers’ Compensation & PTSI for First Responders

August 22, 2025

By Ed Cooney

Signed into law on October 29, 2024, Act 121 amends Pennsylvania’s Workers’ Compensation Act to address mental health coverage for first responders, specifically focusing on post-traumatic stress injury (PTSI), often referred to as “PTSD.” It will take effect on October 29, 2025.

Key Provisions

EFFECTIVE DATE

Provisions apply to claims filed on or after October 29, 2025, and injuries occurring within five years before that date (October 29, 2020).

COVERAGE FOR PTSI

Act 121 allows first responders, including firefighters, police officers, and emergency medical services personnel, to file workers’ compensation claims for PTSI resulting from exposure to traumatic events in the course of their employment.

PRESUMPTION

The law does not create an automatic presumption that PTSI is work-related (unlike California’s SB 542). Instead, first responders must still demonstrate that their PTSI is directly related to their job duties.

DEFINITION OF FIRST RESPONDER

The act clearly defines which occupations are covered, including paid and volunteer firefighters, law enforcement officers, and EMS personnel.

Implications for Clients

ACCESS TO BENEFITS

First responders in Pennsylvania now have a clearer and broader path to seek workers’ compensation benefits for PTSI, but they must provide evidence linking their condition to a work-related traumatic event.

NO AUTOMATIC PRESUMPTION

Unlike some other states, Pennsylvania requires proof of causation; the burden remains on the employee to show the connection between their mental health condition and their work.

SUPPORT FOR MENTAL HEALTH

The law recognizes the unique mental health challenges faced by first responders and aims to support them in accessing care and benefits.

Before Act 121 in Pennsylvania

Pennsylvania courts recognized mental-mental injury claims (where a psychological injury arises without a physical injury) could be compensable. However, the burden of proof was high and there was no presumption, which made it especially difficult for first responders. Claimants had to show:

  • The psychological injury (like PTSD) was caused solely by abnormal working conditions (i.e., conditions significantly different from what others in the same occupation face).
  • The mental health condition was diagnosed by a medical professional and was directly caused by the job. For first responders regularly exposed to trauma, courts often ruled such conditions were “normal” for the job, so claims were denied. Some rare claims were successful—but only in extraordinary circumstances, like a mass casualty event, death of a coworker, or a particularly gruesome scene.

Now With Act 121

Act 121 removes barriers, making PTSI claims for traumatic exposure on the job significantly more viable and accessible. The Act does not create a presumption but removes the “abnormal working conditions” barrier and defines “qualifying traumatic events” for which claims can be made.

THE FIRST RESPONDER MUST SHOW

  • They were exposed to a specific traumatic event on duty;
  • They were diagnosed with PTSI by a licensed physician or
    psychologist; and
  • There is a causal connection between the event and their mental
    health condition.

“QUALIFYING TRAUMATIC EVENTS” MEANS AN INCIDENT OR EXPOSURE

  • Resulting in serious injury or death;
  • Involving a minor who has been injured, killed, abused or exploited;
  • Involving an immediate threat to the life of the claimant or another individual;
  • Mass casualties; or
  • Responding to crime scenes for investigations.

 

BEFORE ACT 121AFTER ACT 121
• PTSI claims theoretically possible but rarely successful
• Burden of proof: show abnormal stress
• No presumption of work-relatedness
• Claims often dismissed as stress was “normal” for the job
• Claims allowed without needing to prove “abnormal working conditions”
• Burden of proof: show a traumatic work event
• Still no presumption, but standard is less restrictive
• Traumatic event + diagnosis by licensed provider = viable path to claim

 

Key Strategies for Managing Act 121 PTSI Claims

CLAIMS MANAGEMENT AND REPORTING

TPA Clear Designation
Ensure your third-party administrator (TPA) is fully briefed on Act 121 and has a clear process for designating, coding and tracking PTSI claims. This will help ensure these claims are handled consistently and in compliance with the law.

Expansion of Injury Reporting Forms
Consider updating or expanding your injury/incident reporting forms to specifically include mental health and PTSI-related questions (to include trauma related and psychological exposures). This can help capture relevant details early and support proper documentation for Act 121 claims.

Review Union Contracts
Review collective bargaining agreements to identify any provisions related to mental health, workers’ compensation, or return-to-work (RTW) policies. Ensure that your approach to Act 121 claims aligns with contractual obligations and that union representatives are informed about the new law.

TRAINING AND WELLNESS INITIATIVES

Supervisor Training
Train supervisors and managers to recognize signs and symptoms of PTSD/PTSI and to understand the requirements of Act 121. This includes knowing how to respond to reports of traumatic incidents and how to support affected employees.

Wellness Programs
Enhance or implement wellness programs that address mental health, resilience, and stress management. Promote resources such as employee assistance programs (EAPs), peer support, and confidential counseling services.

CLAIMS MANAGEMENT BEST PRACTICES

Prompt Independent Medical Evaluation (IME)
Arrange for an IME as soon as possible when a PTSI claim is filed. Early evaluations can help clarify diagnosis, causation, and treatment needs, and may assist in managing claim duration and costs.

Monitor Medical Progress
Closely track the claimant’s medical progress and compliance with prescribed treatment. Maintain regular communication with treating providers to ensure appropriate care and timely updates.

Review Offsets
Evaluate whether benefits from other sources—such as disability insurance or pension plans—may offset workers’ compensation payments. Coordinate with your TPA and legal counsel to ensure proper application of offsets.

Return-to-Work (RTW) Options
Explore RTW opportunities, including light-duty assignments for employees recovering from PTSI. Work with medical providers to determine appropriate accommodations and facilitate a safe, supported transition back to work.

Early Intervention and Communication
Upon notice of a traumatic event or claim, reach out to the employee promptly to express support, explain the process, and provide information about available resources.

Dedicated Claims Contact
Assign a dedicated claims manager or point of contact for PTSI claims to ensure consistency, build trust, and facilitate communication between all parties.

Documentation and Recordkeeping
Encourage thorough documentation of all potentially traumatic incidents, including date, time, location, involved parties, and immediate response actions. Maintain claim files and keep organized records of all communications, medical reports, witness statements, and investigative materials related to each claim.

Data Analysis and Trend Monitoring
Track claim trends and analyze data on PTSI claims to identify patterns, root causes, and opportunities for prevention or process improvement.

CHALLENGING THE CAUSATION AND EXTENT OF DISABILITY

Course of Employment
Assess whether the reported traumatic event(s) occurred in the course and scope of employment. Gather incident reports, duty logs, and witness statements to confirm work-relatedness.

Disability Status
Review medical evidence to determine if the employee is totally disabled or capable of performing light-duty work. If medical records support eligibility for modified duty, document this and offer appropriate accommodations.

Surveillance and Background Checks
Where appropriate and lawful, consider surveillance or review of pre-employment and medical records to assess the validity of the claim and identify any pre-existing conditions or non-work-related factors.

Conflicting Medical Reports
If there are discrepancies between medical opinions regarding the diagnosis, severity, or timeline of PTSI, obtain additional expert opinions or request clarification from treating providers.

Witness Statements
Collect statements from coworkers, supervisors, and others who may have observed the incident or the employee’s behavior before and after the alleged traumatic event. These can be critical in establishing facts and timelines.

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FILED UNDER:

Workers Compensation

Practice Leader

Edward Cooney

Partner, Managing Account Executive, Underwriting Manager Public Entity Practice