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 about Proposition 65? Check our Frequently asked Questions page or contact the Proposition 65 office: (916) 445-6900 or email

Reports, Notices, Documents

May 19, 2017: Acceptance of a Request for a Safe Use Determination for Diisononyl Phthalate (DINP) in Interface Glasbac® And Glasbac®Re Modular Carpet Tile and Opportunity for Public Comment
OEHHA has received a request for a Safe Use Determination (SUD) for the use of diisononyl phthalate (DINP) in Interface GlasBac® and GlasBac®RE modular carpet tile, specifically that exposures to DINP in the carpet tile do not present significant cancer risks under Proposition 65, and therefore do not require a warning.  The request is made by Interface, Inc. pursuant to Title 27 of the California Code of Regulations, section 25204(b)(3).