Labor Code 3208.3: Psychiatric Injury Claims and Defenses

California Labor Code Section 3208.3 sets a deliberately higher bar for workers’ compensation claims based on psychiatric injury than for physical injuries. To qualify, you need a diagnosed mental disorder that causes disability or requires treatment, you have to show that actual events at work were the predominant cause of that condition (more than 50 percent of all causes combined), and you must have worked for the employer at least six months. The statute also gives employers a defense when the injury traces to a good faith personnel action, and it imposes extra hurdles when the claim is filed after a termination or layoff notice.¹

What Qualifies as a Psychiatric Injury

Under subdivision (a), a psychiatric injury is compensable only if it is a mental disorder that causes disability or requires medical treatment, and the diagnosis has to follow the terminology and criteria of the American Psychiatric Association’s Diagnostic and Statistical Manual or another nationally recognized psychiatric diagnostic manual.¹ In practice that means a licensed mental health professional has to evaluate you and assign a clinical diagnosis such as major depressive disorder, generalized anxiety disorder, or PTSD. General complaints about stress or unhappiness at work, without a formal diagnosis, don’t clear this threshold.

The Predominant Cause Standard

This is where most claims are won or lost. Subdivision (b)(1) requires you to prove by a preponderance of the evidence that actual events of employment were “predominant as to all causes combined” of the psychiatric injury.¹ California courts have read “predominant” to mean work-related factors must account for more than 50 percent of all causes.² The appellate court in Department of Corrections v. Workers’ Comp. Appeals Board (Garcia) established that interpretation, and evaluators still apply it.

The word “actual” matters. You have to point to specific workplace events or conditions, not a general sense that the job was hard. A forensic psychiatric evaluation will weigh those events against non-industrial contributors like pre-existing mental health conditions, personal relationships, financial stress, and family problems. If the evaluator concludes that your personal life and history contributed 50 percent or more, the claim fails. The evaluating physician must address causation and apportion the disability between work-related and non-work-related sources.

Subdivision (c) makes the Legislature’s intent explicit: this section creates “a new and higher threshold of compensability for psychiatric injury” compared to physical workplace injuries.¹ A physical injury generally requires only that work be a contributing cause. A psychiatric injury has to have work as the single biggest factor.

A Lower Standard for Victims of Workplace Violence

The statute treats violence differently. Under subdivision (b)(2), if your psychiatric injury resulted from being the victim of a violent act or from direct exposure to a significant violent act, the causation standard drops from “predominant” to “substantial.” Subdivision (b)(3) defines “substantial cause” as at least 35 to 40 percent of causation from all sources combined.¹

A bank teller who develops PTSD after being held at gunpoint during a robbery does not have to prove the robbery was the dominant cause of the condition. If the robbery contributed 35 to 40 percent or more, that is enough, even where a pre-existing anxiety disorder accounted for a substantial share of the overall picture.

The Six-Month Employment Requirement

You cannot file a psychiatric injury claim unless you have worked for that employer for at least six months.¹ The six months do not need to be continuous; seasonal, intermittent, and part-time work all count toward the total. Payroll records are the usual way to verify the threshold has been met.

There is one exception. If the psychiatric injury was caused by a “sudden and extraordinary employment condition,” the six-month requirement is waived.¹ A building collapse, an explosion, or witnessing a coworker’s death on the job during your first week would qualify. Outside that kind of extreme scenario, the vesting period is firm.

Claims Filed After Termination or Layoff

If you file a psychiatric injury claim after receiving notice that you are being terminated or laid off, the law assumes you might be reacting to the job loss rather than a genuine injury. Subdivision (e) requires you to prove by a preponderance of the evidence that actual events of employment were the predominant cause of the injury, and to satisfy at least one of five additional conditions.¹ Those five conditions are:

The psychiatric injury was caused by sudden and extraordinary employment events.
The employer received notice of the psychiatric injury, under the workers’ compensation claim-filing provisions in Chapter 2 starting at Section 5400, before the notice of termination or layoff.
Your medical records from before the termination or layoff notice contain evidence of treatment for the psychiatric injury.
A trier of fact found sexual or racial harassment, whether through a contractual, administrative, regulatory, or judicial proceeding.
The date of injury falls after the notice of termination or layoff but before it took effect.

Meeting the predominant-cause test alone is not enough here. You need both the causation showing and at least one of those five conditions. Without a paper trail created before the termination notice, post-termination claims are very hard to win.

The Good Faith Personnel Action Defense

Employers have a powerful defense under subdivision (h): no compensation is owed if the psychiatric injury was substantially caused by a “lawful, nondiscriminatory, good faith personnel action.”¹ The statute does not list examples, but the actions that commonly trigger the defense include performance reviews, schedule changes, transfers, demotions for cause, and disciplinary write-ups. The action has to be legitimate, honestly applied, and not a pretext for discrimination.

The party raising the issue carries the burden. In practice the employer asserts the defense and then has to show the personnel action was conducted in good faith. Courts look at whether the employer followed its own policies, whether the action was consistent with how other employees were treated, and whether the decision had a legitimate business reason. Feeling devastated by a negative review does not defeat the defense if the review was honest and followed standard procedures.

The defense collapses when the personnel action was a sham. A performance improvement plan used to push someone out, or a schedule change targeting an employee for discriminatory reasons, loses the protection of good faith.

Apportionment of Permanent Disability

Even when a psychiatric claim succeeds, the amount of permanent disability benefits depends on how much of the disability is attributed to work. Labor Code Section 4663 requires the evaluating physician to determine the approximate percentage of permanent disability caused directly by the industrial injury and the percentage caused by other factors, including pre-existing conditions and prior injuries.³ The employer is only liable for the work-related share. If a psychiatrist rates your whole person impairment at 30 percent but attributes half of it to a pre-existing condition, your compensable disability drops to 15 percent.

There is one notable limit. For psychiatric injuries occurring on or after January 1, 2013, the evaluating physician cannot apportion permanent disability to psychiatric impairment caused by sexual harassment, pregnancy, or menopause when that condition exists alongside the claimed industrial psychiatric injury.

Filing Steps and Why Timing Matters

Your employer must provide a claim form within one working day of learning about your injury.⁴ You fill it out and return it to your employer, which officially starts the claim. If the form does not arrive, ask in writing or contact the Division of Workers’ Compensation directly.

Timing matters more for psychiatric claims than for almost any other type of injury. If symptoms are developing while you are still employed, report the injury to your employer and see a doctor right away. Medical records created before any hint of termination are the strongest evidence that the injury is genuine and work-related, and they are often what makes the difference between a viable claim and one that cannot survive the subdivision (e) hurdles after a layoff notice arrives.

1
California Legislative Information. California Code Labor Code 3208.3
2
California Department of Industrial Relations. WCAB Panel Decision – Barron, ADJ10816406
3
California Legislative Information. California Labor Code LAB 4663
4
California Legislative Information. California Labor Code LAB 5401