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OEHHA may send letters to interested parties that assist in understanding Proposition 65 statutes and regulations, and their application.
| Program: Proposition 65
OEHHA is referring ethoprop to the Carcinogen Identification Committee, the state’s qualified experts for carcinogenicity determinations under Proposition 65, for review for possible delisting.
| Program: Proposition 65
Fish consumption advisory for Bass Lake in Madera County.
| Program: Fish
The mission of the individual sections within OEHHA and reports that pertain to their mission
| Program: Public Information
Effective December 8, 2025, the Office of Environmental Health Hazard Assessment has added the developmental toxicity endpoint to the reproductive toxicity listing of bisphenol S (BPS) under Proposition 65. This addition was done via the “State’s Qualified Experts” listing mechanism, based on the Developmental and Reproductive Toxicant Identification Committee’s determination that this chemical was clearly shown to cause developmental toxicity.
| Program: Proposition 65
Effective December 8, 2025, the Office of Environmental Health Hazard Assessment added N-methyl-N-formylhydrazine 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 determination that this chemical was clearly shown to cause cancer.
| Program: Proposition 65
Fish consumption advisory for Mammoth Creek in Mono County.
| Program: Fish
OEHHA has selected p,pʹ-bisphenol chemicals for the DARTIC’s review for possible listing under Proposition 65 as causing reproductive toxicity. p,pʹ-Bisphenol chemicals include p,pʹ-bisphenols, and ethers and esters of p,pʹ-bisphenols.
| Program: Proposition 65
Fish consumption advisory for Hodges Reservoir in San Diego County.
| Program: Fish