OEHHA issued a request for relevant information regarding the carcinogenicity of ethoprop as part of the Proposition 65 Carcinogen Identification Committee (CIC) process, indicating a potential delisting review pathway. Compliance teams that manufacture, distribute, or sell products that may involve ethoprop should monitor this review because a future delisting decision could change warning obligations, but no delisting has occurred at this stage.
OEHHA posted a Request for Relevant Information on the carcinogenicity of ethoprop, indicating the chemical is being referred to the Carcinogen Identification Committee (CIC) for review for possible delisting from the Proposition 65 list. This is not a final delisting, but it is an official step in the delisting evaluation process and invites stakeholders to submit relevant data within OEHHA’s stated information-request window. Compliance teams tracking Proposition 65-listed substances should monitor this proceeding because it could eventually change listing status and related warning/enforcement exposure for ethoprop.
OEHHA issued a request for relevant information regarding the carcinogenicity of ethoprop in connection with a Carcinogen Identification Committee (CIC) review that could result in a potential delisting under Proposition 65. Compliance teams should monitor this proceeding because a delisting could change warning/settlement exposure for products/operations involving ethoprop; however, no delisting decision is indicated in the provided sources.
OEHHA added N‑methyl‑N‑formylhydrazine to the Proposition 65 list as a chemical known to cause cancer. Businesses selling products in California should evaluate whether the chemical is present in products or workplace/consumer exposure scenarios and determine if Prop 65 warning, reformulation, or exposure mitigation actions are needed based on anticipated exposure pathways.
OEHHA added N-methyl-N-formylhydrazine to the Proposition 65 list as a chemical known to cause cancer (effective December 8, 2025). Compliance teams should evaluate whether products, emissions, or workplace activities could expose individuals in California to this substance and whether Prop 65 warnings or exposure assessments are required.
OEHHA posted the latest consolidated 'Proposition 65 List' package (dated December 5, 2025) with downloadable formats (e.g., PDF/Excel/CSV). While this is not itself a new restriction, it is the authoritative consolidated reference used for Prop 65 applicability determinations; compliance teams should use this version (or any newer posted version) as the controlled reference for internal chemical screening and compliance checks.
OEHHA issued a listing notice expanding the existing Proposition 65 reproductive toxicity listing for Bisphenol S (BPS) by adding the developmental toxicity endpoint. This change means Prop 65 warnings/enforcement considerations for BPS exposures now explicitly include developmental toxicity, in addition to previously covered reproductive toxicity endpoints, affecting product hazard assessments and warning determinations for businesses selling into California.
OEHHA updated/posted the current Proposition 65 chemical list download resources (PDF/Excel/CSV) on its Proposition 65 List webpage, with the list date shown as December 5, 2025. Compliance teams can use these official files as the authoritative reference for verifying whether a substance is listed and for maintaining internal restricted-substance/warning determinations.
OEHHA expanded the scope of the existing Proposition 65 reproductive toxicity listing for bisphenol S (BPS) by adding the developmental toxicity endpoint (effective December 8, 2025) via the State’s Qualified Experts mechanism (DARTIC). Compliance teams should reassess whether exposures to BPS trigger Prop 65 warning obligations considering the expanded reproductive toxicity endpoint and ensure warnings/supply chain communications remain accurate.
The CPPA announced approval of a major CCPA/CPRA regulations package (approved by OAL) that includes requirements and frameworks for cybersecurity audits, risk assessments, and rules governing automated decisionmaking technology (ADMT), along with updates to existing CCPA regulations. This is directly relevant to Vendor Cybersecurity & Data Privacy because these obligations commonly flow down into vendor/service-provider governance: businesses will need stronger documentation of cybersecurity programs, assessment processes, audit readiness, and risk management for processing activities often performed by vendors (e.g., cloud/SaaS processors). The CPPA announcement states an effective date of Jan 1, 2026, with staged compliance timelines referenced for audit certifications, risk assessment submissions/attestations, and ADMT significant-decision obligations.
OEHHA issued a proposed rulemaking to amend Title 27, California Code of Regulations, section 25705 (No Significant Risk Levels for carcinogens) to add new safe harbor NSRLs: 1‑bromopropane at 54 µg/day and diethanolamine (dermal exposure only) at 6.4 µg/day. OEHHA also issued an extension notice moving the public comment deadline to November 7, 2025. If finalized, these NSRLs would affect Proposition 65 warning determinations and risk assessments for products or workplaces involving these substances, particularly for dermal exposure scenarios for diethanolamine.
OEHHA issued a Notice of Proposed Rulemaking to amend Title 27 of the California Code of Regulations, section 25705(b), to add new No Significant Risk Levels (NSRLs) used as Proposition 65 cancer “safe harbor” exposure levels. The proposal would add an NSRL of 54 µg/day for 1-bromopropane and an NSRL of 6.4 µg/day for diethanolamine for dermal exposure only (explicitly not applicable to other exposure routes). OEHHA’s notice sets a public comment deadline of October 6, 2025, and provides that a public hearing will be held only if requested by September 22, 2025. Compliance teams may wish to submit comments and, if adopted, consider how these NSRLs affect internal Prop 65 exposure assessments and warning determinations.
OEHHA listed vinyl acetate under Proposition 65 as a chemical known to cause cancer (listing effective January 3, 2025). The Prop 65 warning requirement for significant exposures becomes enforceable starting January 3, 2026 (one-year grace period typical for new listings). Compliance teams should assess products/operations that may expose California consumers/workers to vinyl acetate and implement compliant Prop 65 warnings and related substantiation/documentation before the enforceability date.
OEHHA issued an official notice listing vinyl acetate on the Proposition 65 list as a chemical known to the State of California to cause cancer. Businesses whose products or operations may result in consumer or occupational exposures to vinyl acetate in California should evaluate whether warnings are required and update compliance documentation and supplier inquiries accordingly.
OEHHA adopted amendments to the Proposition 65 'clear and reasonable warnings' safe-harbor regulations, including updates impacting use and content of short-form warnings (e.g., requiring identification of at least one listed chemical). The amendments are effective January 1, 2025. Compliance teams should update labeling/artwork, online warnings, and related procedures to meet the amended safe-harbor content requirements and transition provisions.
The Office of Administrative Law approved OEHHA’s rulemaking updating the Proposition 65 ‘clear and reasonable warnings’ regulation (safe harbor warning methods and content). The amendments became effective January 1, 2025, impacting how businesses may structure compliant warnings (including content and format elements) for listed-chemical exposures in California.