CA SB20

Adds silicosis and silica-related lung cancer to the definition of "serious injury or illness" and "serious physical harm" under California's Occupational Safety and Health Act, expanding enforcement and penalty provisions

Prohibits dry cutting, grinding, polishing, or other high-exposure trigger tasks on artificial stone containing more than 0.1% crystalline silica; requires mandatory use of wet methods that effectively suppress dust

Requires fabrication shop owners to ensure employees performing high-exposure tasks receive required safety training, with annual written attestations to the Division of Occupational Safety and Health beginning July 1, 2026

Mandates the State Department of Public Health report silicosis cases related to artificial stone exposure to the Division within 3 business days, triggering mandatory workplace investigations

Directs the State Department of Public Health to identify businesses conducting high-exposure activities, provide outreach and education on silicosis prevention, and assist local health jurisdictions with surveillance efforts