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Early Indicators of High-Risk Opioid Use Study Released

The study compares characteristics of claims involving high levels of opioid use to claims with similar injury mix and injured worker age that involved only a lower dose of opioids.

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Ownership and Experience Rating Online Course

Learn the fundamentals of workers' compensation insurance through our online training program, CompEssentials®.

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About The WCIRB

The Workers' Compensation Insurance Rating Bureau of California (WCIRB) is California’s trusted, objective provider of actuarially-based, research integral to a healthy workers’ compensation system.

We provide tools to help licensed agents and brokers serve their clients, and educational resources for employers to better understand California’s workers’ compensation system.

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