Below are links to the current and immediately preceding versions of the California Workers' Compensation Uniform Statistical Reporting Plan–1995 (USRP), California Workers' Compensation Experience Rating Plan–1995 (ERP) and Miscellaneous Regulations for the Recording and Reporting of Data–1995 (Miscellaneous Regulations). These publications are part of the Insurance Commissioner's regulations for workers' compensation insurance and may be helpful in answering questions concerning workers' compensation insurance in California. (Order hard copies of these documents on the Research, Data and Publications page.)
Below are links to advisory publications produced by the WCIRB. These publications are not approved by the Insurance Commissioner. They are provided as a service to WCIRB members.
California Basic Underwriting Manual – Effective January 1, 2020
California Insolvent Insurer Rating Adjustment Plan – Effective January 1, 2014
Advisory California Rules for the Recording and Reporting of USL&H Workers' Compensation Act Coverage – Published October 23, 2014