​​What’s New at OHB?

State Compensation Insurance Fund Safety Event on May 9, 2025
What’s New in the Revised Lead Construction Regulation

Join the live, virtual webinar at 10am PST, led by experts from the California Department of Public Health, Cal/OSHA, and State Fund, they will walk you through everything you need to know about the new regulations including extensive revisions to the standard and how to apply them to your workplace.​ Please register for the event.​​

Valley Fever 

UPDATED! Valley Fever: Tailgate Training ​​Guide f​or California Construction Workers ​(PDF, 2MB) | Spa​nish (PDF, 2MB)​​ – short, interactive training guide that covers worker training elements required by California Labor Code Section 6709, June 2025​

Engineered Stone (ES) Silicosis Dashboard

The ES Silicosis Dashboard​ contains surveillance data for ES Silicosis cases reported to the state since surveillance began in 2019. Data are updated weekly and are also available for download.

Program for Respirator Outreach, Training, Education, and Community Testing (PROTECT)

The PROTECT program​ provides workers and the general public the tools they need to protect themselves from respiratory hazards, such as wildfire smoke or infectious diseases such as COVID-19.

For Cannabis Industry Workers and Employers

Health and Safety in the Cannabis industry​

For Stone Fabrication Workers

​​​Hazard Alert for Workers (PDF) | Hazard Alert for Workers (Spanish, PDF) | Hazard Alert for Workers (Chinese, PDF) - a fact sheet for workers

For Stone Fabrication Employers

UPDATED! Guide for Stone Fabricators: Exposure to Respirable Crystalline Silica (PDF)
A guide for employers from CDPH​ about Cal/OSHA’s updated permanent standard.​

UPDATED! Workplace Air Monitoring for Silica: Employer Guide (PDF, 1MB)​ - easy-to-use guide to get started (updated May 2025)

For Health Care Providers

UPDATED! Silicosis in Countertop Fabrication Workers: What Providers Need to Know (PDF)​

​Silicosis in Countertop Fabrication Workers, UCLA (free CME)

Recent Work by OHB Staff

​NEW! Work-related asthma in the cannabis industry: Findings from California, Massachusetts, Michigan and Washington​​, Journal of Occupational and Environmental Medicine (June 2025)

UPDATED! Occupational Heat Related Illness (HRI) Emergency Department Visits, California, 2016–2021 (PDF)​, Analysis Report - key findings from analysis of emergency department visits for work-related heat illness​ (Updated April 2025)​​

Indoor Air Quality Assessments in 10 Long-Term Care Facilities during the COVID-19 Pandemic​, California, 2021–2023​, Journal of the American Medical Directors Association (October 2024)​

​Unmet Mental Health Needs Among California Workers Since the Start of the COVID-19 Pandemic​, Journal of Occupational and Environmental Medicine (April 2024)​​​