Commission on Health and Safety and Workers’ Compensation http://www.dir.ca.gov/chswc/

California Society of Industrial Medicine and Surgery http://www.csims.net/

Association of Occupational Health Professionals http://www.aohp.org/

Division of Workers Compensation http://www.dir.ca.gov/

Work Comp Central http://www.workcompcentral.com/

Western Orthopedic Association http://www.woa-assn.org/

California Workers Comp Institute http://www.cwci.org/

National Institute for Occupational Safety and Health http://www.cdc.gov/niosh/

California Coalition on Workers Compensation http://www.ccwcworkcomp.org/

Billing Link: Division of Workers Compensation Official Medical Fee Schedule 1999 to Present http://www.dir.ca.gov/DWC/OMFS9904.htm