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 visit our Proposition 65 Warnings website

About Proposition 65

The Safe Drinking Water and Toxic Enforcement Act

The Proposition 65 List

The current Proposition 65 list is dated September 13, 2019

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

Visit this website to learn about warnings for exposures to chemicals on the Proposition 65 List

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

Safe Use Determinations

A Safe Use Determination (SUD) is a written statement issued by OEHHA, which interprets and applies Proposition 65 and its implementing regulations to a specific set of facts in response to a request by a business or a trade group

Interpretive Guidelines for Proposition 65

An Interpretive Guideline interprets Proposition 65 and its implementing regulations, as applied to specific facts

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

Acetaminophen will be considered for possible listing by the Committee at a public meeting scheduled for Wednesday, December 5, 2019. The meeting will be held in the Sierra Hearing Room at the CalEPA Headquarters building, 1001 I Street, Sacramento, California.

Fri, 09/20/2019 to Mon, 11/04/2019

The Office of Environmental Health Hazard Assessment is providing notice of changes to the proposed regulatory action to amend Section 25600.2 of Title 27 of the California Code of Regulations.  Section 25600.2 addresses the responsibility to provide consumer product exposure warnings for chemicals listed under Proposition 65.

Fri, 10/04/2019 to Mon, 10/21/2019

Cannabis (marijuana) smoke and Δ-9-tetrahydrocannabinol (THC) will be considered for possible listing by the DARTIC at the public meeting. This notice marks the beginning of a 45-day comment period on this document. OEHHA must receive comments and any supporting materials by Monday, November 18, 2019.

Fri, 10/04/2019 to Mon, 11/18/2019

Reports, Notices, Documents

Oct 4, 2019: Notice of Modification to Text of Proposed Regulation Title 27, California Code of Regulations Proposed Amendment to Section 25600.2 Responsibility to Provide Consumer Product Exposure Warnings
The Office of Environmental Health Hazard Assessment is providing notice of changes to the proposed regulatory action to amend Section 25600.2 of Title 27 of the California Code of Regulations.  Section 25600.2 addresses the responsibility to provide consumer product exposure warnings for chemicals listed under Proposition 65.
Oct 4, 2019: Announcement of the Developmental and Reproductive Toxicant Identification Committee Meeting Scheduled for December 11, 2019, Notice of Availability of Hazard Identification Materials for Cannabis (Marijuana) Smoke and Δ-9-Tetrahydrocannabinol (THC)
Cannabis (marijuana) smoke and Δ-9-tetrahydrocannabinol (THC) will be considered for possible listing by the DARTIC at the public meeting. This notice marks the beginning of a 45-day comment period on this document. OEHHA must receive comments and any supporting materials by Monday, November 18, 2019.
Sep 19, 2019: Withdrawal of Notice of Proposed Proposition 65 Rulemaking, Title 27, Cal Code of Regs, Section 25821 (a) and (c)
On October 5, 2018, the Office of Environmental Health Hazard Assessment (OEHHA) issued a notice of proposed rulemaking to adopt amendments to Title 27, California Code of Regulations, section 25821.  The amendments were intended to clarify when and how a person could average concentrations of a listed chemical in a food, and identified the use of the arithmetic mean as the default method of calculation of individual exposure. 

Pages