Chlorpyrifos and n-Hexane Scheduled for Consideration for Listing at the November 29, 2017 Meeting of the Developmental and Reproductive Toxicant Identification Committee

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The California Environmental Protection Agency’s Office of Environmental Health Hazard Assessment (OEHHA) is the lead agency for the implementation of Proposition 65[1].  The Developmental and Reproductive Toxicant Identification Committee (DARTIC) of OEHHA’s Science Advisory Board serves as the state’s qualified experts and renders an opinion about whether a chemical has been clearly shown to cause reproductive toxicity[2]. The chemicals identified by the DARTIC are added to the Proposition 65 list.

Chlorpyrifos and n-hexane will be considered for possible listing by the DARTIC at its next meeting scheduled for Wednesday, November 29, 2017 beginning at 10 a.m. at the California Environmental Protection Agency, located at 1001 I Street in Sacramento.  Chlorpyrifos will be considered for possible listing based on the developmental toxicity endpoint.  n-Hexane will be considered for possible listing based on the developmental, male and female reproductive toxicity endpointsOEHHA will announce the agenda for the DARTIC meeting in the California Regulatory Notice Register and on its website in advance of the meeting.

Chlorpyrifos was previously considered by the DARTIC in 2008, but was not added to the Proposition 65 list at that time.  Substantial new, relevant data on developmental toxicity have become available since the chemical was previously considered for listing.

OEHHA in approximately one week will announce on its website the availability for public comment of hazard identification materials for chlorpyrifos and n-hexane.  An announcement will also be published subsequently in the California Regulatory Notice Register.

Footnotes and References

[1] The Safe Drinking Water and Toxic Enforcement Act of 1986, codified at Health and Safety Code section 25249.5 et seq., commonly referred to as “Proposition 65”.

[2] Title 27, Cal. Code of Regs., section 25302 et seq.