WCIRB releases multi-bureau COVID-19 analysis. Register for the webinar!Learn More
New report series examines an industry sector in California’s workers’ compensation system and provides insights into key characteristics and cost drivers in the industry.Read the Report
New report details the primary drivers of California frictional costs, the impact of high frictional cost claims and recent trends in frictional costs.Read the Report
Earn CompEssentials certification through online courses.Learn More
Watch Bill Mudge and his colleagues discuss how the WCIRB embraces human connectedness.Watch Videos
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.