“I am glad and so very pleased...he made happen what no other attorney could do. So far he has proven his weight in gold.”
Jamal Sharples
Antelope Valley
✦ Certified Specialist in Workers’ Compensation Law — Certified by the State Bar of California, Board of Legal Specialization ✦
Serving injured workers across California. Board-certified specialist; no fee unless we win.
By Eman Yazdchi, Esq. · Certified Specialist in Workers' Compensation Law, State Bar of California Board of Legal Specialization
In California, AOE/COE — 'arising out of and in the course of employment' — is the compensability threshold under Labor Code §3600. The injured worker does not need to prove employer fault under California's no-fault rule. Yazdchi Law handles California AOE/COE disputes statewide.
In California, AOE/COE — "arising out of and in the course of employment" — is the compensability threshold under California Labor Code §3600. An injury that arises out of (is caused by) the work and occurs in the course of (during the time and within the scope of) the employment is compensable, regardless of employer fault. The two California prongs work together: "arising out of" is about cause; "course of" is about time, place, and scope.
Under California Labor Code §3600, California workers' compensation is no-fault — the injured worker does not need to prove employer negligence to receive benefits. Once AOE/COE is established, medical treatment under California Labor Code §4600, temporary disability under California Labor Code §4653, permanent disability under California Labor Code §4660, and (where applicable) the SJDB voucher under California Labor Code §4658.7 all flow. The no-fault rule is the trade-off California workers accept in exchange for waiving the right to sue the employer civilly.
Under California Labor Code §3600, the California AOE/COE threshold is broad: traumatic accidents on the job (a fall, a lifting injury, a vehicle collision on a company route), cumulative trauma developing over months or years under California Labor Code §3208.1 (repetitive lifting, prolonged standing, computer use), occupational diseases, and, with a higher predominant-cause threshold, psychiatric injuries under California Labor Code §3208.3. Most non-trivial work-connected injuries pass California AOE/COE absent a statutory exclusion.
Under California Labor Code §3600, California AOE/COE typically fails when the injury is purely off-duty, when the worker materially deviated from the scope of employment at the time of injury (a major personal detour while driving), when the injury results from the worker's own intoxication or willful self-injury, or when the cause is purely personal. Each California exclusion is fact-intensive and litigated under §3600.
Under California Labor Code §5402(c), a California workers' compensation insurer must authorize up to $10,000 in medical treatment under California Labor Code §4600 within one working day of the completed DWC-1, regardless of whether the claim is ultimately accepted or denied. Under California Labor Code §5402(b), if the insurer does not accept or deny within 90 days, the claim is presumed compensable — including AOE/COE — by operation of law.
Injured at work? Call (661) 273-1780
Tap to call →Last reviewed by Eman Yazdchi, Esq., May 2026.
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