The Safe Drinking Water and Toxic Enforcement Act of 1986, also referred to as Proposition 65, is a California initiative to address concerns regarding exposure to toxic chemicals. Proposition 65 requires warning labels on products that contain certain levels of the 600+ elements that the California Air Resources Board considers a carcinogen or a reproductive toxicant. These elements include lead, brass, PVC and a multitude of other everyday elements.
The general Proposition 65 notice is: WARNING: This product that contains a substance known to the state of California to cause cancer, birth defects or other reproductive harm.