Proposition 65

Proposition 65, officially known as the Safe Drinking Water and Toxic Enforcement Act of 1986, was enacted as a ballot initiative in November 1986. The proposition protects the state's drinking water sources from being contaminated with chemicals known to cause cancer, birth defects or other reproductive harm, and requires businesses to inform Californians about exposures to such chemicals.

Proposition 65 requires the state to maintain and update a list of chemicals known to the state to cause cancer or reproductive toxicity.

Questions?

Questions about Proposition 65? Check our Frequently asked Questions page or contact the Proposition 65 office: (916) 445-6900 or email P65.Questions@oehha.ca.gov.

Upcoming Events

The Carcinogen Identification Committee of OEHHA’s Science Advisory Board serves as the state’s qualified experts and renders an opinion about whether a chemical has been clearly shown to cause cancer.  The chemicals identified as carcinogens by the CIC are added to the Proposition 65 list. 

Fri, 03/15/2019 - 10:00am to Mon, 04/29/2019 - 5:00pm

Reports, Notices, Documents

Mar 15, 2019: Acetaminophen Selected by OEHHA for Consideration for Listing by the Carcinogen Identification Committee and Request for Relevant Information on the Carcinogenic Hazard of this Chemical
The Carcinogen Identification Committee of OEHHA’s Science Advisory Board serves as the state’s qualified experts and renders an opinion about whether a chemical has been clearly shown to cause cancer.  The chemicals identified as carcinogens by the CIC are added to the Proposition 65 list. 

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