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Coverage Research

Coverage Research Request Service on 


Due to scheduled maintenance, the Coverage Research Request Service will be unavailable between Friday, July 19, 2019, 5:00 PM and Monday, July 22, 2019, 5:00 AM Pacific Time. We apologize for any inconvenience.


Employers, insurers and their authorized third parties, licensed health care providers, California Insurance Guarantee Association and attorneys involved in a pending workers' compensation claim can request WCIRB coverage research directly on



This service replaces the need to submit WCIRB’s Form 807, Coverage Research Service Request, which is no longer accepted. Coverage research requests made online requires payment by credit card (Master Card or Visa only) or ACH bank payment. Payment by check for non-insurers and monthly billing for insurers will not be accepted.

The WCIRB provides various options for employers, injured workers, insurers and others to access workers' compensation insurance coverage information:

Coverage Inquiry Website

The California Workers' Compensation Coverage Inquiry website is a service created by the WCIRB that you can use to identify an insurer that wrote a California workers' compensation insurance policy for a specific employer on a specific date within the last 5 years. To use this free service, go to

WCIRB Connect® for Insurer Claims Adjusters

The Claims Coverage Research feature of WCIRB Connect provides insurer claims adjusters free and immediate access to detailed coverage information for policies dating back to 1974.
Read more about this feature>







Online Coverage Research for Authorized Government Agencies through WCIRB Connect

Government agencies authorized to receive workers’ compensation coverage information pursuant to California Insurance Code Sections 11752.5 et. seq. and 1877 et. seq., can obtain online access to workers’ compensation coverage information through WCIRB Connect. Users authorized by the government agency will be issued a WCIRB Connect User ID and password by the WCIRB after completion of Form 401, Coverage Search - Government Users which will allow them access to WCIRB Connect.

Coverage Research Service for Injured Workers

Injured workers may obtain coverage research information without charge.

Coverage Research Service for Other Authorized Parties

In addition to providing self-service coverage research capabilities to the public via the Coverage Inquiry website and for insurer claims adjusters and government agencies through WCIRB Connect, the WCIRB provides coverage research service to insurers, employers, licensed health care providers, the California Insurance Guarantee Association, authorized third party administrators and managing general agents and attorneys involved in pending workers' compensation claims. 

To make a coverage research request, the requesting party must (1) certify that he/she is entitled to receive the coverage information, that the information will be used solely in connection with the pending workers' compensation claim, and that the information will not be otherwise published, distributed or released to third parties and (2) submit an online request on

Employers may also request their own coverage information at any time.

Requirements for Online Coverage Requests

The following information is required for the WCIRB to process a request for coverage information when there is a pending claim so please have it available when you submit your online request. This includes:

  1. names of the parties of the pending workers’ compensation claim, 
  2. claim number (if known), 
  3. WCAB number (if assigned and known), 
  4. the employer for which the information is requested, 
  5. the employer's address, and 
  6. the year(s) of coverage needed.

Fee for Coverage Research Service

The fee for WCIRB coverage research services is:

  • $20 per employer, per coverage year for 1996 through the present
  • $40 per employer, per coverage year for 1958 through 1995

Fees are nonrefundable regardless of the outcome of the research. The WCIRB requires advance payment by credit card (Master Card or Visa only) or ACH bank payment  for all coverage research requests. Payment by check for non-insurers and monthly billing for insurers is no longer permitted beginning November 1, 2018.