California proposition 65, the "1986 safety of drinking water and toxic substances enforcement law", in November 1986, the aim is to protect the residents of California and the state's drinking water, the water contains no known may cause cancer, birth defects or other reproductive development harmful substances, and truthfully inform residents when products appear this kind of material.The California 65 Controlled Substances List, which is published quarterly by the OEHHA and first published in 1987, now includes more than 900 substances.

 Core control requirements:

1. No Use of water pollution: No person shall knowingly discharge or release into water supplies or land that may contaminate water supplies any substance known to the State of California that is carcinogenic or reproductively toxic.

2. Warning requirements: After a chemical is placed on a controlled list, manufacturers and distributors must complete the warning within 12 months and terminate the release of the chemical to the source of drinking water within 20 months.After that date, government or individual law enforcement officials, including individuals or organizations representing the public interest, may initiate proceedings against violators of the statute.Warning requirements must be "clear and reasonable" and can take many forms.

3. Limit requirements for Hazardous Substances: The California 65 Control List does not itself set limits for substances. Limit limits for hazardous substances in products, refer to existing lawsuits or agreements against such products. In these documents, limit requirements and test methods for certain substances in certain products may be reached.

4. When conducting the California 65 control, a company shall first compare the material control requirements established in the lawsuit of existing such products, and then investigate the harmful substances in the products with reference to this control.