All California businesses are classified using the Standard Classification System found in Part 3 of the California Workers' Compensation Uniform Statistical Reporting Plan - 1995 (Uniform Statistical Reporting Plan). The Uniform Statistical Reporting Plan is part of the California Code of Regulations and is approved by the Insurance Commissioner. The Standard Classification System, which contains approximately 500 industry classifications, describes groups of employers whose businesses are relatively similar. Each classification reflects the type of operations common to that group of employers.
- View standard classifications by classification code number
- View standard classifications in alphabetical order
- View Construction and Erection Classifications by code number
- View Dual Wage Classification Thresholds by Year (1986-2016)
Use the online search tool to search classification phraseologies by keyword and browse through a sortable list of all standard classifications.
The Classification and Test Audit Insight is a bi-weekly e-newsletter that highlights common classification and test audit issues of interest to auditors, underwriters and others.
- View the WCIRB E-Newsletter Archive
- Subscribe to the Classification and Test Audit Insight E-Newsletter
These reports are presented to the WCIRB's Classification and Rating and Governing Committees, and may be included in a WCIRB regulatory filing submitted to the California Insurance Commissioner for approval. View the reports>