Public CommentProposedPublic CommentProposed Regulation
OEHHA issues request for relevant information on carcinogenicity of ethoprop (potential delisting review)
California Proposition 65California Office of Environmental Health Hazard Assessment (OEHHA)US
Announced
Dec 19, 2025
Description
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.