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OEHHA is referring ethoprop to the Carcinogen Identification Committee for a recommendation concerning whether the chemical should continue to be included on the list of chemicals known to the state to cause cancer.
| Program: Proposition 65
The California Environmental Protection Agency’s Office of Environmental Health Hazard Assessment intends to list perfluorobutanoic acid (PFBA) and related salts as known to the state to cause reproductive toxicity.
| Program: Proposition 65
The California Environmental Protection Agency’s Office of Environmental Health Hazard Assessment intends to list perfluorohexanoic acid (PFHxA) and related salts as known to the state to cause reproductive toxicity.
| Program: Proposition 65
The California Environmental Protection Agency’s Office of Environmental Health Hazard Assessment intends to list perfluorodecanoic acid (PFDA) and related salts as known to the state to cause reproductive toxicity.
| Program: Proposition 65

Fishery closure and re-opening recommendations due to biotoxin levels

| Program: Fish

OEHHA recognizes the value of tribal knowledge in reporting on climate change impacts, and of raising awareness of tribal-specific impacts.

| Program: Climate Change
Explore the indicators that show how climate change is affecting California. The 2026 edition is organized into seven volumes, including 49 indicators and eight tribal reports.
| Program: Climate Change
The California Environmental Protection Agency’s Office of Environmental Health Hazard Assessment (OEHHA) intends to list atrazine as known to the state to cause cancer under the Safe Drinking Water and Toxic Enforcement Act of 1986, sections 25249.5 et seq. of the Health and Safety Code (HSC), otherwise known as Proposition 65.
| Program: Proposition 65
The Office of Environmental Health Hazard Assessment (OEHHA) will host an online pre-regulatory workshop to discuss a potential set of amendments related to vinyl acetate to existing Proposition 65 regulations on September 30, 2026.
| Program: Proposition 65
The Office of Environmental Health Hazard Assessment (OEHHA) is announcing a second draft document describing the proposed updated Public Health Goal (PHG) for N-nitrosodimethylamine (NDMA) in drinking water.
| Program: Water