Proposition 65 and PFAS
California’s Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65) requires businesses to warn consumers when products expose them to chemicals listed as known carcinogens or reproductive toxicants. Several PFAS compounds — including PFOA and PFOS — have been listed under Proposition 65, requiring warning labels on products containing these substances above defined no-significant-risk levels.
Proposition 65 PFAS warnings appear on certain PFAS-treated consumer products sold in California. The warning requirements have driven some manufacturers to reformulate products for the California market — creating ‘California effect’ market changes where products reformulated for California standards are sold nationally, de facto raising product standards for all U.S. consumers.
AB 1200 and Additional PFAS Disclosure
California Assembly Bill 1200, signed in 2021, requires manufacturers of cookware and food packaging to disclose PFAS on product labels or through QR codes. This goes beyond Prop 65 by requiring disclosure even below Prop 65 threshold levels, creating a right-to-know obligation for PFAS in these specific product categories regardless of risk level.
AB 652 extended similar disclosure requirements to juvenile products including car seats, strollers, and nursing pillows — products where PFAS exposure of infants and young children is a particular concern. Manufacturers must disclose intentionally added PFAS and, if using PFAS for flame retardant purposes, must phase out use as alternatives become available.
Industry and Consumer Impact
PFAS labeling requirements create significant compliance burdens for manufacturers who must test products, maintain documentation, and update labels across California-specific and national product lines. Supply chain transparency requirements — documenting PFAS content from chemical suppliers through product manufacturers to retailers — are driving broader supply chain PFAS data management.
Consumer-facing PFAS disclosure empowers shopping decisions and creates economic incentives for PFAS elimination beyond regulatory mandates. Consumer goods companies that proactively eliminate PFAS and market their products as PFAS-free find competitive advantage in California’s environmentally aware consumer market — a dynamic that accelerates voluntary PFAS phase-out beyond the pace of regulation alone.