As federal agencies continue to prioritize regulatory initiatives to address per- and polyfluoroalkyl substances (PFAS) as part of a whole-of-government approach, states are marching forward to implement drastic restrictions and reporting requirements for the use of PFAS in products. California is no exception.

PFAS are now within the purview of the state’s most sweeping right-to-know law, the Safe Drinking Water and Toxic Enforcement Act of 1986, better known as Proposition 65. PFAS are a class of chemicals widely used in consumer, commercial and industrial products and can be highly persistent in the environment. Recent actions by California’s Office of Environmental Health Hazard Assessment (OEHHA) to add certain PFAS to the list of chemicals “known to the state” to cause cancer or reproductive harm under Proposition 65 have broad-reaching implications throughout the U.S. and the global supply chain.