Understand how payroll and claims experience will affect the computation of an experience modification.Use the Estimator
The proposed amendments to sunset the exclusion of COVID-19 claims in the ERP were not approved.Learn Changes
Watch Bill Mudge and his colleagues discuss how the WCIRB is recharging relationships with our customers.Watch Video
Register for the webinar to learn about the proposed advisory pure premium rates.Read more
Earn CompEssentials certification through online courses.Learn More
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.