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WCIRB Bulletins

WCIRB Bulletins are announcements from the WCIRB for the current year. You may use the drop-down menu to view WCIRB Bulletins for the past two years. We recommend using the most current version of Adobe Acrobat Reader to view these documents. You may order WCIRB Bulletins issued prior to the past two years on the Research, Data and Publications page. Additionally, you may subscribe to receive copies of current Bulletins as they are released by signing up for WCIRB Email Alerts.

Visit the WCIRB Bulletins of Continuing Interest page to view past WCIRB Bulletins covering workers' compensation issues and information of ongoing interest to WCIRB members.

2019-12 Reminder Notice Concerning Social Security Numbers

This is a reminder to exercise due diligence and heightened care when submitting data or documents to the WCIRB to prevent the submission of social security numbers in consideration of privacy concerns.
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2019-11 Reporting of Indemnity Transaction Data – Reporting Guide

An updated WCIRB Indemnity Data Call Reporting Guide that includes detailed instructions for the reporting of this data is now available on the WCIRB’s website (
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2019-10 California Workers’ Compensation Losses and Expenses

The WCIRB has compiled its annual report on calendar year aggregate costs. This report provides a summary of various California workers’ compensation cost components in calendar year 2018. The report was prepared pursuant to California Insurance Code Section 11759.1.
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2019-09 WCIRB January 1, 2020 Regulatory Filing

The WCIRB has submitted a regulatory filing to the California Insurance Commissioner which includes amendments to the California insurance regulations.
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2019-08 WCIRB Internet Browser Support Policy Update

s part of the WCIRB’s ongoing efforts to ensure the security and accessibility of its websites, the WCIRB is adjusting its browser compatibility and standardizing its browser support.
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2019-07 Standard Endorsement – California WC 00 01 15 Notification Endorsement of Pending Law Change to Terrorism Risk Insurance Program Reauthorization Act of 2015

A Notification Endorsement of Pending Law Change to Terrorism Risk Insurance Program Reauthorization Act of 2015 has been drafted by the National Council on Compensation Insurance, Inc. (NCCI) to be used on policies issued on or after January 1, 2020 to notify policyholders of the impending expiration of TRIPRA and that, if it expires, a premium charge for losses that may occur in the event of certain acts of terrorism may either continue to apply or change from the amount currently applied.
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2019-06 Reporting of Indemnity Transaction Data – Reporting Guide

The WCIRB has prepared a WCIRB Indemnity Data Reporting Guide that includes detailed instruction for the reporting of this data that is now available on the WCIRB’s website.
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2019-05 Robotic Process Automation Service for Insurers in WCIRB Connect®

The WCIRB is offering insurers the opportunity to access experience modifications (X-Mods) in WCIRB Connect using a Robotic Process Automation (“Bot”) service. This service allows authorized insurers that have executed a Connect Services Agreement and Bot Addendum to automate the retrieval of X-Mods, which would otherwise have to be accessed manually. This option is available only for member insurers.
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2019-04 Minutes of the 103rd Annual Meeting of the Workers' Compensation Insurance Rating Bureau of California

On March 20, 2019, members of the Workers’ Compensation Insurance Rating Bureau of California convened for WCIRB’s 103rd Annual Meeting.
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2019-03 2019 Terrorism Risk Insurance Data Calls

As in the last several years, the National Association of Insurance Commissioners (NAIC) has requested that the WCIRB submit, on the industry’s behalf, insurer-specific California workers’ compensation terrorism exposure data. The CDI sent a directive to the WCIRB to submit terrorism data for policies incepting in 2016 to the NAIC through the New York State Department of Financial Services.
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2019-02 Notice of the 2019 Meeting of the WCIRB Membership

The WCIRB's Annual Meeting of its Membership will be held at 4:00 PM on Wednesday, March 20, 2019.
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2019-01 Reporting Indemnity Transaction Data

The WCIRB Governing Committee has adopted a plan to facilitate the collection of indemnity transaction data in California by the end of the third quarter of 2020 in a manner consistent with a directive from the California Insurance Commissioner.
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