California’s Office of Environmental Health Hazard Assessment (OEHHA) issued finalized amendments on January 14, 2020, to its regulations that will become effective on April 1, 2020. Per OEHHA in its Final Statement of Reasons, the amendments “clarify how intermediate parties in the chain of distribution can satisfy their obligation to provide a warning” under Proposition 65. OEHHA also revised the level of knowledge required to trigger warning obligations for retail sellers.