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WCIRB Insurance/Claims
Updated March 2026

Workers' Compensation Insurance Rating Bureau (WCIRB)

Definition

California's licensed rating organization that collects premium and loss data from insurers, calculates pure premium rates, and assigns experience modification rates to employers. The WCIRB sets classification codes for industries and maintains the actuarial data that insurers use to set workers' compensation premium rates.

Related Terms

Frequently Asked Questions

What is a Workers' Compensation Insurance Rating Bureau (WCIRB)?

California's licensed rating organization that collects premium and loss data from insurers, calculates pure premium rates, and assigns experience modification rates to employers. The WCIRB sets classification codes for industries and maintains the actuarial data that insurers use to set workers' compensation premium rates.

How does workers' compensation insurance rating bureau affect a workers' compensation claim?

Workers' Compensation Insurance Rating Bureau plays an important role in determining the outcome of a workers' compensation claim in California. Understanding this concept helps injured workers, attorneys, and physicians navigate the claims process more effectively.