California’s Safe Drinking Water and Toxic Enforcement Act of 1986, aka Proposition 65 (Prop 65) was revised August 30, 2018. The revised Prop 65 requires a warning label, example shown below, for any consumer product containing any of the more than 950 chemicals known to the State of California to cause cancer or birth defects.
Manufacturers that produce or ship products into California are responsible for Prop 65 compliance. This can be a challenge. Many manufacturers aren’t sure where products will end up. In the global economy a product manufactured in Paris, TX may go to a distribution warehouse in Paris, TN and from there be sent to end-users in Perris CA, Paris, France – or anywhere.