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The California Office of Environmental Health Hazard Assessment (OEHHA) added chlorpyrifos (CAS No. 2921–88-2) and n-hexane (CAS No. 110–54-3) to the list of chemicals known to the State of California to cause reproductive toxicity under the Safe Drinking Water and Toxic Enforcement Act of 1986, Proposition 65, and based on Title 27, California Code of Regulations, section 25305(b)(1).

OEHHA announced the availability for public review of the hazard identification materials for chlorpyrifos and n-hexane in September 2017. The Developmental and Reproductive Toxicant Identification Committee (DARTIC) had finalized the listing of the two chemicals on their November 29th meeting.

Read the complete and updated Proposition 65 list. The final listing became effective on December 15, 2017.