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.

About Proposition 65

The Safe Drinking Water and Toxic Enforcement Act

The Proposition 65 List

The current Proposition 65 list is dated October 03, 2018

Meetings, Hearings and Workshops

Upcoming and past meetings, hearings and workshops

Notices

All Proposition 65 Notices

Laws and Regulations

Links and downloads related to Proposition 65 statute and regulations

Warnings

All Proposition 65 Notices

How chemicals are added to the Proposition 65 list

Learn how chemicals are added to the list

Authoritative Bodies Tracking Table

Contains information on the status of chemicals considered by OEHHA for addition to the Proposition 65 list

Interpretive Guidelines for Proposition 65

An Interpretive Guideline that interprets Proposition 65 and its implementing regulations

New Warning Regulations

Clear and reasonable warnings

Searchable Proposition 65 Chemical Database

Search the Proposition 65 Chemical Database

Safe harbor levels

Current Proposition 65 No Significant Risk Levels (NSRLs) Maximum Allowable Dose Levels (MADLs)

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 Wed, 05/29/2019 - 5:00pm

Reports, Notices, Documents

Pages