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WCIRB Contact Center

Telephone: 888.CA.WCIRB (888.229.2472)
Fax: 415.778.7272
WCIRB Contact Center Online Inquiry Form

Hours: Monday – Friday, 7:45 AM – 4:45 PM PT

Workers’ Compensation Insurance Rating Bureau of California
1901 Harrison Street, 17th Floor
Oakland, CA 94612
Attn: Contact Center

WCIRB Speaking Opportunities

If you would like the WCIRB to speak to your organization on workers’ compensation topics, please fill out the WCIRB Speaker Online Request Form.

WCIRB Policyholder Ombudsman

Telephone: 415.778.7159
Fax: 415.371.5288

Workers Compensation Insurance Rating Bureau of California
1901 Harrison Street, 17th Floor
Oakland, CA 94612

Attn: Policyholder Ombudsman

For information about the role of the WCIRB Policyholder Ombudsman, visit the Policyholder Ombudsman page.

Media Inquiries

If you have press-related questions, please email the WCIRB Customer Experience Department.  

Holiday Schedule

The WCIRB office will be closed in observance of the following holidays:

Holiday Date
New Year’s Day Monday, January 1, 2024
Martin Luther King Jr. Day Monday, January 15, 2024
Presidents’ Day Monday, February 19, 2024
Memorial Day Monday, May 27, 2024
Independence Day  Thursday, July 4, 2024
Labor Day Monday, September 2, 2024
Thanksgiving Thursday, November 28, 2024
Friday, November 29, 2024
Christmas  Tuesday, December 24, 2024
Wednesday, December 25, 2024

Other Helpful Workers’ Comp Online Resources

The WCIRB also receives workers’ compensation questions that are beyond its jurisdiction. Below is a table that may help answer some of these questions.   

Question or Issue


Insurer rate filings
Questions about insurers’ rate filings and their approved premium rates by classification code.

California Department of Insurance – Rate Filing Division

Premium audit disputes
Questions about premium audit disputes regarding your insurance policy should be directed to your insurance carrier.

Each insurer is required to have a dispute process outlined in a Notice to Policyholder within the insured’s policy. More information is available at the California Department of Insurance’s website.

Claims Handling Issues

Division of Workers’ Compensation, Department of Industrial Relations

USL&H coverage
Questions regarding USL&H coverage.

US Department of Labor

Obtaining a workers’ compensation insurance policy
Questions about which workers’ compensation insurance carriers provide insurance in California.

CDI – Licensed California insurers and rate comparison

Insurer contact information

CDI – Insurance Company Profiles

Employment status
Questions about rules and regulations regarding employment status.

California Department of Industrial Relations

Employee exclusions on a policy

California Labor Code §3352

Insurance fraud
Questions about insurance fraud and how to report insurance fraud.

California Department of Insurance – Fraud Division