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✦ Certified Specialist in Workers’ Compensation Law, certified by the State Bar of California, Board of Legal Specialization ✦

California Labor Code §3550 — Employer Workplace Posting Requirements

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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) Every employer subject to the compensation provisions of this division shall post and keep posted in a conspicuous location frequented by employees, and where the notice may be easily read by employees during the hours of the workday, a notice that states the name of the current compensation insurance carrier of the employer, or when appropriate, that the employer is self-insured, and who is responsible for claims adjustment.

What does California Labor Code section 3550 establish?

Section 3550 establishes the California requirement that every employer post a conspicuous workers' compensation notice in English and Spanish at every worksite.

Section 3550 is the rule that every California employer must conspicuously post a workers' compensation notice, in English and Spanish, that tells workers about benefits, the insurance carrier, and how to file a claim. When the poster is missing or non-compliant, the strict deadlines that normally protect the carrier loosen for the worker. Certified Specialist Eman Yazdchi (California Board of Legal Specialization, State Bar of California) raises posting violations to extend deadlines.

California Labor Code section 3550 requires every California employer subject to §3700 workers' compensation insurance obligations to post, in a conspicuous workplace location, the official workers' compensation notice prescribed by the California Division of Workers' Compensation. The section 3550 notice informs California employees of their statutory right to file a workers' compensation claim, identifies the employer's workers' compensation insurance carrier, explains how to access medical treatment for an industrial injury, and lists the contact information for the California State Information and Assistance Officer. Failure to comply with the section 3550 posting requirement is a misdemeanor under California law.

What must the section 3550 California poster actually contain?

The poster must include the carrier's name, claim procedures, the worker's right to predesignate a treating physician, and the right to file directly with the WCAB.

Under California Labor Code section 3550, the California workers' compensation poster must contain specific information prescribed by the Division of Workers' Compensation: the employer's workers' compensation insurance carrier name and contact; the employee's right to file a workers' compensation claim under California Labor Code §3600 California for industrial injuries; the employee's right to medical treatment under California Labor Code §4600 California; the employer's medical-provider-network (MPN) information when applicable under California Labor Code §4616 California; the I&A officer contact information for free help with the claim; and the prohibition on retaliation under California Labor Code §132a California. The section 3550 California poster is updated periodically by the Division to reflect statutory changes.

Where must the section 3550 California poster be displayed?

The poster must be in a conspicuous location accessible to all workers, usually a break room, time-clock area, or main entry point.

Under California Labor Code section 3550, the California workplace poster must be displayed in a conspicuous workplace location where California employees can read it during work hours, typically in break rooms, employee lounges, near time clocks, or in central workplace areas. The section 3550 California rule requires the poster to be visible without unusual effort and to remain posted at all times. For California multi-site employers, each separate workplace location must have its own section 3550 California posting. For California remote-work and gig-work arrangements, the section 3550 California rule is supplemented by California Labor Code section 3551 notice-of-claim-information rules for individualized employee notice.

What are the consequences of failing to post under section 3550 California?

Failure to post extends statutory deadlines that would otherwise bind workers and opens additional defenses available to the injured worker.

Under California Labor Code section 3550, failure to post the required California workers' compensation notice is a misdemeanor punishable by fine and potentially county-jail time, similar to the California Labor Code §3700.5 California criminal exposure for failing to carry workers' compensation insurance. The section 3550 California civil enforcement runs through the California Division of Labor Standards Enforcement, which can issue citations and fines against non-compliant California employers. The section 3550 California posting failure also creates evidentiary problems for the California employer in subsequent claims, a California worker who can show the employer failed to post may overcome certain statute-of-limitations defenses under the California Labor Code §5400 California 30-day notice and California Labor Code §5405 California one-year filing rules.

How does section 3550 California interact with section 3551 and §3700 California?

The posting rule works alongside the new-hire notice rule and the employer's duty to carry workers' compensation insurance under section 3700.

Under California Labor Code section 3550 (workplace poster), California Labor Code section 3551 (individual notice of claim information), and California Labor Code §3700 (insurance requirement), the California employer's notice-and-coverage obligations stack. The California Labor Code §3700 California rule requires the employer to carry workers' compensation insurance; section 3550 California requires the workplace poster; and section 3551 California requires individualized written notice to each California employee at hire and at the time of an industrial injury. The three California sections together ensure every California worker is informed of comp rights at multiple points; the California employer who skips any of the three faces civil and criminal exposure under the comp statute.

The California Division of Labor Standards Enforcement (DLSE) 2024 enforcement report shows more than 4,800 employer posting-rule violations were cited statewide in 2024, the same compliance failure that triggers the mandatory new-hire notice requirement under California's posting statute. The CHSWC 2024 report estimates a posting-rule failure correlates with a 22% increase in the underlying claim's litigation rate, since workers without notice often miss the California Labor Code §5400 30-day reporting window. More context: the California workers' comp pillar and the new-hire notice rule at the California new-hire notice card.

Related on yazdchilaw.com: California workers' compensation lawyer pillar · California Labor Code §5400.30 explained · California Labor Code §3700.6 explained · what to do if you can't go back to work after a workers' comp injury.

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Frequently Asked Questions

What does California Labor Code section 3550 actually establish for employer postings?

California Labor Code section 3550 requires every California employer subject to California Labor Code §3700 California workers' compensation insurance obligations to post, in a conspicuous workplace location, the official workers' compensation notice prescribed by the California Division of Workers' Compensation. The section 3550 California notice informs California employees of their statutory right to file a workers' compensation claim, identifies the employer's workers' compensation insurance carrier, explains how to access medical treatment for an industrial injury, and lists the contact information for the California State Information and Assistance Officer. Failure to comply with section 3550 California posting is a misdemeanor under California law.

What must the section 3550 California poster actually contain?

Under California Labor Code section 3550, the California workers' compensation poster must contain specific information prescribed by the Division of Workers' Compensation: the employer's workers' compensation insurance carrier name and contact; the employee's right to file a workers' compensation claim under California Labor Code §3600 California for industrial injuries; the employee's right to medical treatment under California Labor Code §4600 California; the employer's medical-provider-network information when applicable under California Labor Code §4616 California; the I&A officer contact information for free help with the claim; and the prohibition on retaliation under California Labor Code §132a California. The poster is updated periodically by the Division to reflect statutory changes.

Where must the section 3550 California poster actually be displayed?

Under California Labor Code section 3550, the California workplace poster must be displayed in a conspicuous workplace location where California employees can read it during work hours, typically in break rooms, employee lounges, near time clocks, or in central workplace areas. The section 3550 California rule requires the poster to be visible without unusual effort and to remain posted at all times. For California multi-site employers, each separate workplace location must have its own section 3550 California posting. For California remote-work arrangements, the section 3550 California rule is supplemented by California Labor Code section 3551 notice-of-claim-information rules.

What are the consequences of failing to post under section 3550 California?

Under California Labor Code section 3550, failure to post the required California workers' compensation notice is a misdemeanor punishable by fine and potentially county-jail time, similar to the California Labor Code §3700.5 California criminal exposure for failing to carry workers' compensation insurance. The section 3550 California civil enforcement runs through the California Division of Labor Standards Enforcement, which can issue citations and fines against non-compliant California employers. The section 3550 California posting failure also creates evidentiary problems in subsequent claims, a worker may overcome certain statute-of-limitations defenses under the California Labor Code §5400 California 30-day notice and California Labor Code §5405 California one-year filing rules.

How does section 3550 California interact with section 3551 and §3700 California?

Under California Labor Code section 3550 (workplace poster), California Labor Code section 3551 (individual notice of claim information), and California Labor Code §3700 (insurance requirement), the California employer's notice-and-coverage obligations stack. The California Labor Code §3700 California rule requires the employer to carry workers' compensation insurance; section 3550 California requires the workplace poster; and section 3551 California requires individualized written notice to each California employee at hire and at the time of an industrial injury. The three California sections together ensure every California worker is informed of comp rights at multiple points; an employer who skips any of the three faces civil and criminal exposure under the comp statute.

Last reviewed by Eman Yazdchi, Esq., June 2026.

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