A Prop 65 Crash Course: What You Need to Know (2026)

California’s Proposition 65, enacted in November 1986 with 63% voter support, requires warnings when products may expose consumers to listed chemicals above safe-harbor thresholds, but it does not ban those substances. The law’s list—updated annually and added via the Labor Code, CIC, DARTIC, FDA, or other agencies—covers foods, cosmetics, electronics and household items, prompting consumer choice and encouraging manufacturers to reformulate to avoid warnings.