The Hazard Evaluation System and Information Service, or HESIS, investigates new and unrecognized workplace hazards, provides early warning, and works to prevent illness and disease on the job. See About HESIS for more details
Using Workers’ Compensation Claims for Occupational Health Surveillance in California, 2015-2017 (PDF) – a data brief that combines four datasets to calculate industry-specific rates of occupational injuries that led to a California’s workers compensation claim from 2015-2017. September 2026.
Dampness and Mold in Indoor Workplaces - a guide for workers and employers on how to fix mold, regulations that protect workers, and where to get help. June 2026.
Resources for Clinicians on Reproductive Health - Resources with links to assist clinicians in managing female and male reproductive health risks in occupational settings. April 2026.
H5N1 Bird Flu: Working with Wildlife (PDF, 1MB) - one page informative flyer for wildlife workers on measures to prevent bird flu exposure. March 2026.
Valley Fever: Tailgate Training Guide for California Construction Workers (PDF, 2MB) | Spanish (PDF, 2MB) - short, interactive training guide that covers worker training elements required by California Labor Code Section 6709, June 2025.