Latest News
Evaluation of seafood safety consumption following oil spills
| Program: Fish
Fact Sheet describing OEHHA activities involving oil spills and seafood
| Program: Fish
If, when, and how a fisheries closure occurs following an oil spill notification.
| Program: Fish
Restrictions on 1,3-Dichloropropene (1,3-D) to protect occupational bystanders. New regulations, developed jointly and mutually by the California Department of Pesticide Regulation and the Office of Environmental Health Hazard Assessment, are effective January 1, 2026 to reduce the risk of 1,3-D exposure to occupational bystanders.
| Program: Pesticides
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 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