California OEHHA Adds Bisphenol S (BPS) to Proposition 65 List for Developmental Toxicity

Effective December 8, 2025, the California Office of Environmental Health Hazard Assessment (OEHHA) has added bisphenol S (BPS) to the list of chemicals known to the state to cause reproductive toxicity, specifically identifying it as a developmental toxicant. This listing action was taken under the Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65) following a determination by the Developmental and Reproductive Toxicant Identification Committee (DARTIC).