OEHHA adds N-methyl-N-formylhydrazine to the Proposition 65 list as a chemical known to cause cancer

OEHHA added N-methyl-N-formylhydrazine to the Proposition 65 list as a chemical known to cause cancer (effective December 8, 2025). Compliance teams should evaluate whether products, emissions, or workplace activities could expose individuals in California to this substance and whether Prop 65 warnings or exposure assessments are required.