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Coverage Research

Online Coverage Research Request Service 


The following can request WCIRB coverage research directly on

  • Insurers
  • Employers
  • Licensed health care providers
  • California Insurance Guarantee Association
  • Authorized Third Party Administrators and Managing General Agents
  • Attorneys involved in pending workers compensation claims and their authorized employees or copy service



Form 807, Coverage Research Service Request, is no longer accepted. Please use this service in its place. Coverage research requests made online require payment by credit card (Mastercard or Visa only) or ACH bank payment. 

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

Workers' Compensation Coverage Inquiry Website

The Workers Compensation Coverage Inquiry website is a free service provided by the WCIRB for anyone to use in order to identify an insurer that wrote a California workers' compensation insurance policy for a specific employer on a specific date within the last five years. To access this free service, go to

Coverage Research Service through WCIRB Connect®

Authorized Government Agencies

Government agencies authorized to receive workers’ compensation coverage information pursuant to California Insurance Code Sections 11752.5 et. seq. and/or 1877 et. seq. can obtain online access to workers’ compensation coverage information through WCIRB Connect. To obtain access to WCIRB Connect, the government agency must complete Form 401, Request for Remote Access to Coverage Information. The WCIRB will issue each user listed in the form a WCIRB Connect user ID and password, which allows access to WCIRB Connect.


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 that incept in 1974 or later.
Read more about this feature>

Injured Workers

Injured workers may obtain coverage research information without charge.

Online Coverage Requests

To Make an Online Coverage Research Request, You Must:

  1. Certify all of the following:
    • You are entitled to receive the coverage information.
    • The information will be used solely in connection with a pending workers compensation claim.
    • The information will not be otherwise published, distributed or released to third parties.
  2. Have the following information available when you submit your online request (see below):
    • Names of the parties of the pending workers’ compensation claim 
    • Claim number (if known) 
    • Workers’ Compensation Appeals Board (WCAB) number (if assigned and known) 
    • Employer for which the information is requested 
    • Employer’s address 
    • Year(s) of coverage needed
  3. Submit an online request on

Fees for Coverage Research Service

The fee for WCIRB coverage research services is:

  • $20 per employer, per coverage year for coverage from January 1, 1996 to the present
  • $40 per employer, per coverage year for coverage from January 1, 1958 to December 31, 1995

Any portion of a year counts as a complete year. Fees are nonrefundable regardless of the outcome of the research. The WCIRB requires advance payment by credit card (Mastercard or Visa only) or ACH bank payment for all online coverage research requests. Please allow up to 60 days from the time your order is submitted for the WCIRB to complete your request(s).

Supported Browsers

Effective May 1, 2021, the WCIRB supports the most recent version of the following browsers:

  • Microsoft New Edge Browser (Chromium Edge)
  • Google Chrome

The following browsers are no longer supported:

  • Internet Explorer (IE) 8.1, 10 or 11

As a reminder, your browser must be configured to accept cookies and execute JavaScript in order to use any of the WCIRB’s websites. To learn more about the supported browsers, click here.