The WCIRB conducts research to assist in the formulation of proposed changes to the Insurance Commissioner’s regulations. Classification research studies 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. Below are reports from the past 10 years.
2020
2019
- Report on the Cotton Farms and Batting Study (October 15, 2019)
- Report on Hardware Stores and Hardware Dealers Study (May 7 and May 30, 2019)
- Report on Cotton Merchants and Warehouse Study (May 7, 2019)
- Report on the Review of Dual Wage Classification Thresholds (May 7, 2019)
- Report on the Hotel/Motel Industry Study (May 7, 2019)
- Report on Cider Manufacturing Industry Study (March 19, 2019)
- Report on Aircraft Industry Ticket Sellers and Information Clerks Study (January 22, 2019)
- Report on Ice Manufacturing, Ice Dealers, Creameries and Dairy Products Manufacturing Study (January 22, 2019)
- Report on Wrecking or Demolition and Building Raising or Moving Special Industry Classification Procedures Study (January 22, 2019)
- Report on Non-Electronic Instrument Mfg. Study (January 22, 2019)
2018
2017
2016
2015
2014
2013
- Report on Mining and Quarries (October 22, 2013)
- Report on Magnetic Tape Manufacturing (October 22, 2013)
- Report on Electrical Apparatus and Electric Appliance Manufacturing (October 22, 2013)
- Report on Farmers’ Markets and Amusement Parks or Exhibitions (July 23, 2013)
- Report on Retail Dry Cleaning or Laundries, Commercial Laundries and Dry Cleaning or Dyeing (June 14, 2013)
- Report on the 2013 Study of Dual Wage Thresholds (June 14, 2013)
- Report on Dual Wage Construction or Erection Classifications Time Card Verification of Hourly Wage (June 14, 2013)
- Report on Concrete Sawing or Drilling Industry (June 14, 2013)
- Report on the Dual Wage Threshold Painting Industry (March 5, 2013)
2012
2011
2010
2009