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What Is California Labor Code §3600 (No-Fault Workers' Comp Liability)?
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By Eman Yazdchi, Esq. · Certified Specialist in Workers' Compensation Law, State Bar of California Board of Legal Specialization · Cal Bar #285231
(a) Liability for the compensation provided by this division, in lieu of any other liability whatsoever to any person except as otherwise specifically provided in Sections 3602, 3706, and 4558, shall, without regard to negligence, exist against an employer for any injury sustained by his or her employees arising out of and in the course of the employment and for the death of any employee if the injury proximately causes death, in those cases where the following conditions of compensation concur:
What does Labor Code 3600 establish?
Labor Code 3600 creates no-fault liability: benefits are owed whenever an injury arises out of and occurs in the course of California employment. Employer fault is irrelevant to the right to benefits.
Labor Code 3600 is the core bargain of California workers' comp. Workers receive prompt no-fault benefits. In exchange, they give up most civil tort claims against the employer for the same industrial injury. The worker proves the injury happened at work. The employer owes benefits without any negligence finding.
Eman Yazdchi is a Certified Specialist in workers' compensation law, certified by the California Board of Legal Specialization, State Bar of California. He builds the AOE/COE record that triggers Labor Code 3600 liability on every contested file.
How does Labor Code 3600 create no-fault liability?
The worker meets the threshold by showing the injury arose out of the work and occurred in the course of employment. No proof of employer negligence, an unsafe workplace, or wrongdoing is required.
The two-part test is simple. The injury must arise out of the employment (AOE) and occur in the course of employment (COE). Once both are met, benefits flow. The statute lists specific conditions that must concur. But employer fault is not one of them. A worker can recover even when the injury was partly caused by the worker's own mistake.
What benefits flow once Labor Code 3600 AOE/COE is established?
The full benefit stack opens: medical care, temporary disability, permanent disability, the retraining voucher, and death benefits if the injury is fatal. All flow from a single AOE/COE finding.
Medical treatment flows under Labor Code 4600. Temporary disability flows under Labor Code 4653. Permanent disability is rated under Labor Code 4660. The Supplemental Job Displacement Benefit voucher flows under Labor Code 4658.7. Death benefits flow under Labor Code 4702. All of these depend on the Labor Code 3600 AOE/COE finding.
What exclusions can defeat a Labor Code 3600 claim?
The enumerated exclusions include: the worker's own intoxication causing the injury, willful self-inflicted injury, an altercation the worker initiated, a felony the worker was committing, and off-duty recreational activity.
Each exclusion is fact-intensive. The employer must prove the exclusion applies. An injury during off-duty recreation unrelated to employment fails AOE/COE. An injury caused by the worker's own felony is excluded. An injury from an altercation the worker started is excluded. Courts interpret these exclusions narrowly. Most work-related injuries survive the enumerated exclusions.
How does Labor Code 3600 interact with the exclusive-remedy rule?
Under Labor Code 3601, workers' comp is the exclusive remedy against the employer when Labor Code 3600 conditions are met. The narrow exceptions are uninsured employers under Labor Code 3706 and the dual-capacity and intentional-act carve-outs under Labor Code 3602.
When Labor Code 3600 applies, the worker generally cannot sue the employer in civil court for the same injury. Labor Code 3601 creates the exclusive-remedy bar. But Labor Code 3706 permits a civil action against an uninsured employer. Labor Code 3602 carves out intentional misconduct and dual-capacity situations. Outside those exceptions, comp is the sole remedy.
Related: California comp pillar · Labor Code 3700 explainer.
Injured at work? Call (661) 273-1780
Tap to call →Eman Yazdchi is a Certified Specialist in workers' compensation law, certified by the California Board of Legal Specialization, State Bar of California. Yazdchi Law serves injured workers throughout Greater Los Angeles. We appear at the WCAB in Van Nuys, Los Angeles, Long Beach, Pomona, San Bernardino, Riverside, and Oxnard. Call (661) 273-1780 for a free case review.
Frequently Asked Questions
Does Labor Code 3600 cover injuries that happen on the way to work?
Generally, no. The commute-to-work exception, called the coming-and-going rule, excludes most injuries that happen while commuting. Exceptions apply when the employer provides transportation, the employee has no fixed work location, or the commute is an integral part of the job. The AOE/COE analysis under Labor Code 3600 is highly fact-specific for commute injuries.
Can a worker recover under Labor Code 3600 if the injury was partly the worker's own fault?
Yes. California workers' comp is no-fault. The worker's own negligence or mistake does not bar a claim. Only the specific enumerated exclusions in Labor Code 3600, such as intoxication or willful self-infliction, can defeat a claim. Comparative fault is not a defense in a California workers' comp case.
Does Labor Code 3600 cover cumulative trauma injuries?
Yes. Labor Code 3600 covers cumulative trauma injuries as well as specific traumatic events. A repetitive-motion injury from years of warehouse work, a hearing loss from industrial noise, or carpal tunnel from prolonged computer use all qualify if they arose out of and in the course of California employment. The date of injury for cumulative trauma is set under Labor Code 5412.
Does Labor Code 3600 cover psychiatric injuries?
Yes, but with a higher threshold. Under Labor Code 3208.3, a psychiatric injury must be predominantly caused by actual events of employment, at least 51 percent, rather than personal factors. The injury must also arise after at least six months of employment. Labor Code 3600 provides the no-fault framework, and Labor Code 3208.3 sets the additional psychiatric threshold.
Can an employer challenge AOE/COE and still delay medical treatment?
No. Under Labor Code 5402, an employer has 90 days to investigate and deny a claim. During the investigation period, the employer must provide up to $10,000 in medical treatment under Labor Code 5402(c). Delaying treatment while contesting AOE/COE is not permitted. The investigation deadline runs regardless of whether the employer has decided to contest compensability.
Last reviewed by Eman Yazdchi, Esq., July 2026.
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