Silica Safety for Countertop Fabrication Employers

Silicosis can be prevented by reducing or eliminating exposure to silica dust. If you own or run a countertop ​​fabrication business, you are required to take steps to keep your employees safe.

In December 2024, Cal/OSHA adopted updates to their permanent standard to protect workers from exposure to respirable crystalline silica.

• Guide for Stone Fabricators: Exposure to Respirable Crystalline Silica (PDF)  
• Guide for Stone Fabricators: Exposure to Respirable Crystalline Silica (Spanish, PDF) 
• Guide for Stone Fabricators: Exposure to Respirable Crystalline Silica (Armenian, PDF)

A guide for employers from CDPH​ about Cal/OSHA’s updated permanent standard.

​Safety Resources to Help Prevent Silica Exposures

• ​​Workplace Air Monitoring for Silica during Engineered Stone (Quartz) Fabrication Work: Guide for California Employers (PDF) 
• ​​Workplace Air Monitoring for Silica during Engineered Stone (Quartz) Fabrication Work: Guide for California Employers (Spanish, PDF) 
• ​​Workplace Air Monitoring for Silica during Engineered Stone (Quartz) Fabrication Work: Guide for California Employers (Armenian, PDF)​​

Get started with silica air monitoring required under Cal/OSHA silica standard (updated May 2025).

​Cal/OSHA - Additional Resources f​or Employers

For help measuring silica exposure or complying with the Cal/OSHA silica standards:​