On December 8, 2025, N-methyl-N-formylhydrazine (MFH) was added to the Prop 65 List as a carcinogen. As a result, the Prop 65 warning...

On December 23, 2025, the agency implementing California’s Proposition 65, the Office of Environmental Health Hazard Assessment (OEHHA),...

On December 8, 2025, the agency implementing California’s Proposition 65, the Office of Environmental Health Hazard Assessment (OEHHA),...

On August 12, 2025, the District Court for the Eastern District of California enjoined the filing and prosecution of new lawsuits to...

Starting on Jan. 3, 2026, warning requirements for vinyl acetate can be enforced under California’s Proposition 65, which is commonly...

On January 3, 2025, vinyl acetate was added to the Prop 65 list as a carcinogen. Vinyl acetate is a synthetic chemical, and a colorless...

On May 2, 2025, the Eastern District of California found that Prop 65 warning requirements for dietary acrylamide violate the First...

On December 6, 2024, OEHHA announced that amendments to the Prop 65 safe-harbor warning regulations have been approved and finalized. The...

There has been a recent increase in the number of Prop 65 60-Day Notices targeting diethanolamine in cosmetics.  Diethanolamine is...

On December 29, 2023, OEHHA listed bisphenol S (BPS) under Prop 65 as a chemical known to the State of California to cause female...

On June 12, 2024, in The Personal Care Products Council v. Bonita (No. 23-1006), the U.S. District Court for the Eastern District of...

Donald Sobelman and Wendy Hernandez discuss "New Proposition 65 Warning Requirements for Cannabis and Hemp-Derived Products." Proposition...

California’s regulatory framework for cannabis and hemp-derived products, including CBD, continues to evolve, most recently via updated...

Updated Proposition 65 warning requirements for cannabis products came into effect on January 3, 2021. As of that date, anyone offering...

California's Environmental Protection Agency's Office of Environmental Health Hazard Assessment (OEHHA), the agency that oversees...

January 1, 2011 is the statutory deadline for California's Department of Toxic Substances Control (DTSC) to adopt its potentially...