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State Fund is California's largest provider of workers' compensation insurance and a vital asset to California businesses. State Fund supports California's entrepreneurial spirit and plays a stabilizing role in the economy by providing fairly priced workers' compensation insurance making California workplaces safe, and restoring injured workers.

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Class Codes

Classifying Workers by Industry and Type of Work

California’s standard classification system divides workers by industry and type of work into approximately 500 different classifications, each with a numeric class code. More information, including a listing of all classifications, is available from the Workers’ Compensation Insurance Rating Bureau (WCIRB), which oversees the classification system.

Note: State Compensation Insurance Fund is not a branch of the State of California.

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