Understand how payroll and claims experience will affect the computation of an experience modification.Use the Estimator
The report highlights key metrics of the California workers’ compensation system.View the Report
There are classifications that apply to many firefighting and fire prevention operations.Read more
The WCIRB has released its report on workers' compensation losses and expenses for 2018.View the Report
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.