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Information on the background of Proposition 65 and links to specific regulatory content.

Frequently asked questions about domoic acid in seafood, tips on how to reduce your risk, and where to find more information

Effective January 3, 2025, the Office of Environmental Health Hazard Assessment (OEHHA) has added vinyl acetate to the Proposition 65 list as a carcinogen. This listing was done via the “State’s Qualified Experts” mechanism, based on the Carcinogen Identification Committee’s (CIC) determination that this chemical was clearly shown to cause cancer.

Information about PAHs (Polycyclic aromatic hydrocarbons) in fish and shellfish translated into Spanish.

Information about PAHs (Polycyclic aromatic hydrocarbons) in fish and shellfish.

This document contains health risk information on regulated drinking water contaminants to assist public water systems in preparing these reports. NEW for the 2022 Report: New in this document are an updated Public Health Goal (PHG) for 1,2-dibromo-3-chloropropane (DBCP) and newly established PHGs for the trihalomethanes bromodichloromethane, bromoform, chloroform, and dibromochloromethane.

The current Proposition 65 list is dated December 29, 2023.

Safe methods of fire ash cleanup and the hazards associated with exposure.

The Office of Environmental Health Hazard Assessment (OEHHA) is adopting a new cancer inhalation Unit Risk Factor (IUR) for Isoprene.

The Office of Environmental Health Hazard Assessment (OEHHA) has amended Title 27, this regulatory action will make the Proposition 65 short-form warning more informative to consumers.