New California Prop 65 warning rules arrive in 2028

The upcoming 2028 regulations mark the end of the generic warning era. Companies can no longer rely on broad disclosures, as new mandates require specific substances to be identified on product labels. This shift carries significant liability: if a company lists a chemical that is not actually present or fails to demonstrate a legitimate exposure risk, its safe harbor protection is effectively voided.

Beyond the 2028 warning requirements, the sessions will dissect recent updates from the 2026 Omnibus. Claigan experts intend to focus on practical strategies for chemical identification and the technical documentation necessary to prove that a warning might not be required at all. Given the high volume of litigation surrounding these regulations, the firm emphasizes that identifying the correct substance is now a critical component of corporate risk management. The webinars are scheduled for 10 a.m. and 2 p.m. ET, with registration available through the Claigan Environmental website.