
Quick Links
- CHSWC research reports
- Current CHSWC Annual Report of programs and data
- Guidebook for Injured Workers
- Guides about filing workers' comp claims
- Carve-Out/Alternative Dispute Resolution
- Young workers and workers' compensation
- Meetings, information bulletins and subscribtions to CHSWC
- Frequently asked questions about workers' comp for employers
About CHSWC
Commission on Health and Safety and Workers' Compensation
Fraud and Illegally Uninsured Employers
CHSWC works with the California Department of Insurance (CDI) and the Fraud Assessment Commission (FAC) to improve anti-fraud efforts in the workers' compensation system. Memoranda of Understanding (MOUs) with several agencies are used to access and match administrative data on coverage, billing and claims records with the purpose of assessing the magnitude and types of fraud in the system. Research on fraud includes pilot projects of data matching methodologies and research studies.
If Your Employer is Illegally Uninsured: How to Apply for Workers’ Compensation Benefits, June 2011
English version
Spanish version- Workers’ Compensation Medical Payment Accuracy Study, California Department of Insurance, June 2008
version - Reporting Workers' Compensation Injuries in California: How Many are Missed?, August 2008
version - Report on the workers' compensation anti-fraud program - attachment A , August 2001
- Report on the campaign against workers' compensation fraud, May 2000
- Employers illegally uninsured for workers' compensation - CHSWC recommendations to identify them and bring them into compliance, December 1998
- Workers' Compensation Anti-Fraud Activities-Report on the CHSWC Public Fact-Finding Hearing, September 1997
Project description
Status: completed
- Fraud in Workers’ Compensation Payroll Reporting: How Much Employer Fraud Exists? What is the Impact on Honest Employers?
version January 2009 (Update to the 2007 CHSWC report of same title presented at a Commission meeting; 2009 update funded by the Fraud Assessment Commission) - Fraud in Workers’ Compensation Payroll Reporting: How Much Employer Fraud Exists? What is the Impact on Honest Employers?
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version August 2007 - Split Class Codes: Evidence of Fraudulent Payroll Reporting, August 2007
version
version - Workers’ Compensation Compliance and Proof of Coverage, February 2006
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- Employers illegally uninsured for workers' compensation - CHSWC recommendations to identify them and bring them into compliance, December 1998
Project description
Status: completed
September 2011

