NEWS

OEHHA Seeks Data as it Considers Removing Ethoprop from Prop. 65 List

The Office of Environmental Health Hazard Assessment (OEHHA) has started the process to potentially remove the insecticide ethoprop from the Proposition 65 list, requesting the Carcinogen Identification Committee (CIC) consider voting on the matter at its next meeting.

Study Examines Perceptions of Prop. 65 Warnings Across the Country

Three business school professors have published a study looking at the effectiveness of Proposition 65 warnings, arguing that the toxics warning law is a potentially "powerful intervention" to help fight against rising cancer rates.

OEHHA Offers Guidance on Prop. 65 Enforcement Related to Vinyl Acetate

Ahead of any potential enforcement action, the Office of Environmental Health Hazard Assessment (OEHHA) has issued a Proposition 65 informational letter related to the newly listed chemical vinyl acetate.

FYI Column: January 2026

Here is a roundup of recent news articles that may be of interest to Prop. 65 Clearinghouse readers.

Prop. 65 60-Day Notices Roundup and Analysis: September 2025

In the month of September, there were a total of 545 60-day notices of violation filed with the California Attorney General's office.

Metal Plating Co.'s Reach Prop. 65 Settlements over Drinking Water PFAS Claims

The Center for Environmental Health (CEH) has reached settlements with several metal plating companies it had sued over alleged violations of Proposition 65 for potentially discharging per- and poly-fluoroalkyl substances (PFAS) into drinking water sources.

OEHHA Officially Adds MFH and New BPS Endpoint to Prop. 65 List

The Office of Environmental Health Hazard Assessment (OEHHA) has formally listed N-Methyl-N-Formylhydrazine (MFH) as a carcinogen under Proposition 65. It has also added the developmental toxicant endpoint to the already-listed chemical bisphenol-S (BPS).

OEHHA Issues Letter to Businesses on Prop. 65 Warnings for BPS in Receipts, Labels

The Office of Environmental Health Hazard Assessment (OEHHA) has issued an information letter to businesses regarding warnings for bisphenol-S (BPS) in receipts and shipping labels.

OEHHA Drinking Water Proposal for 1,4-Dioxane Panned by Businesses, Water Suppliers

A wide swathe of the business sector and water suppliers have come out in opposition to a recent proposal by the Office of Environmental Health Hazard Assessment (OEHHA) setting a water quality guideline for the chemical 1,4 dioxane (1,4-D).

State Appellate Court Poised to Hear Arguments in Fight over 60-Day Notices

A state appellate court is set to weigh in on a Proposition 65 dispute over how strict the paperwork requirements are for parties filing 60-day notices of violation.

FYI Column: December 2025

Here is a roundup of recent news articles that may be of interest to Prop. 65 Clearinghouse readers.

Prop. 65 60-Day Notices Roundup and Analysis: August 2025

In the month of August, there were a total of 629 60-day notices of violation filed with the California Attorney General's office.

State Water Board Finalizes New Water Monitoring Levels for Several PFAS

The State Water Resources Control Board (SWB) has adopted new water quality monitoring guidelines for several per-and polyfluoroalkyl substances (PFAS), including the first-ever standards for perfluorohexanoic acid (PFHxA).

Prop. 65 Plaintiff's Attorney Disciplined by State Bar for Conduct in Disability Rights Cases

The California State Bar has taken disciplinary action against an attorney who represents a frequent filer of Proposition 65 notices of violation, suspending him from practicing law in California for a year and imposing financial penalties and other conditions.

Substance in Edible Mushroom Listed as a Carcinogen under Proposition 65

The Carcinogen Identification Committee (CIC) within the Office of Environmental Health Hazard Assessment (OEHHA) has approved listing N-Methyl-N-Formylhydrazine (MFH) as a carcinogen under Proposition 65.

First 60-Day Notices Filed for Aflatoxins, Targeting Foods Sold Online, and for Tetrahydrofuran

The first ever 60-day notices of violation have been filed for aflatoxins, a carcinogen produced by fungi that was listed under Proposition 65 in 1988. Also, the first notice has been filed for the chemical tetrahydrofuran, which was listed as a carcinogen under Prop. 65 in 2021.

DTSC Finalizes Rules for Continued Sales of Spray Polyurethane Foam Systems in California

The Department of Toxic Substances Control (DTSC) has finalized requirements that makers of spray polyurethane foam products must follow under the Safer Consumer Products (SCP) program if they continue to sell such products in California.

Notices of Violation, Litigation Pile up over BPS in Receipts

Since the Proposition 65 warning requirement for bisphenol S (BPS) went into effect 10 months ago, there has been an avalanche of notices of violation filed against hundreds of businesses alleging people are being exposed to the chemical in store receipts without a warning.

FYI Column: November 2025

Here is a roundup of recent news articles that may be of interest to Prop. 65 Clearinghouse readers.

Prop. 65 60-Day Notices Roundup and Analysis: July 2025

In the month of July, there were a total of 630 60-day notices of violation filed with the California Attorney General's office.