Data, including losses and payroll by classification, resulting from every workers' compensation insurance policy written in California is reported to the WCIRB in a Unit Statistical Report (USR). These reports, submitted by your insurance company, are the source of the data used by the WCIRB to administer the Experience Rating System and to publish experience modifications.
USRs are reported at specific intervals defined in Part 4, Section I of the California Workers' Compensation Uniform Statistical Reporting Plan—1995 (Uniform Statistical Reporting Plan). When a worker is injured on the job and a workers' compensation claim file is opened, an estimate of the total claim value (present and future) is made by your insurer and is included on the next USR for your policy filed with the WCIRB.
The first time a claim is valued for unit statistical reporting is 18 months after the policy inception month. This 18-month value is reported on a "first level" USR, which must be submitted to the WCIRB two months after the valuation date, or 20 months after the policy inception month. Claims that are still open as of the first report are required to be valued and reported again 12 months later (30-month valuation, due to the WCIRB at 32 months after the policy inception month) on a "second report." This process continues either until all claims are closed or for a total of 10 reports. Typically, only data contained in the first three reports is used for experience rating purposes.
Unit Statistical Reporting
Inception Date of Policy | 18-Month USR Valuation | 30-Month USR Valuation | 42-Month USR Valuation | 54-Month USR Valuation | 66-Month USR Valuation | ... | 126-Month USR Valuation |
---|---|---|---|---|---|---|---|
Jan 2024 | Jul 2025 | Jul 2026 | Jul 2027 | Jul 2028 | Jul 2029 | ... | Jul 2034 |
Feb 2024 | Aug 2025 | Aug 2026 | Aug 2027 | Aug 2028 | Aug 2029 | ... | Aug 2034 |
Mar 2024 | Sep 2025 | Sep 2026 | Sep 2027 | Sep 2028 | Sep 2029 | ... | Sep 2034 |
Apr 2024 | Oct 2025 | Oct 2026 | Oct 2027 | Oct 2028 | Oct 2029 | ... | Oct 2034 |
May 2024 | Nov 2025 | Nov 2026 | Nov 2027 | Nov 2028 | Nov 2029 | ... | Nov 2034 |
Jun 2024 | Dec 2025 | Dec 2026 | Dec 2027 | Dec 2028 | Dec 2029 | ... | Dec 2034 |
July 2024 | Jan 2026 | Jan 2027 | Jan 2028 | Jan 2029 | Jan 2030 | ... | Jan 2035 |
Aug 2024 | Feb 2026 | Feb 2027 | Feb 2028 | Feb 2029 | Feb 2030 | ... | Feb 2035 |
Sep 2024 | Mar 2026 | Mar 2027 | Mar 2028 | Mar 2029 | Mar 2030 | ... | Mar 2035 |
Oct 2024 | Apr 2026 | Apr 2027 | Apr 2028 | Apr 2029 | Apr 2030 | ... | Apr 2035 |
Nov 2024 | May 2026 | May 2027 | May 2028 | May 2029 | May 2030 | ... | May 2035 |
Dec 2024 | Jun 2026 | Jun 2027 | Jun 2028 | Jun 2029 | Jun 2030 | ... | Jun 2035 |