Chemical Delisted Effective June 6, 2014 as Known to the State of California to Cause Reproductive Toxicity: Chlorsulfuron

Effective June 6, 2014, the Office of Environmental Health Hazard Assessment (OEHHA) is removing chlorsulfuron from the list of chemicals known to the State of California to cause reproductive toxicity for purposes of Proposition 65¹.

Chlorsulfuron was added to the list on May 14, 1999, based on its formal identification by the U.S. Environmental Protection Agency (U.S. EPA), an authoritative body², as causing reproductive toxicity. On November 18, 2013, U.S. EPA concluded that there is no compelling evidence of reproductive toxicity for chlorsulfuron³. Following receipt of a petition from DuPont Crop Protection, OEHHA reviewed the basis for listing the chemical. Subsequently, pursuant to regulatory requirements⁴, OEHHA referred chlorsulfuron to the Developmental and Reproductive Toxicant Identification Committee (DARTIC) for reconsideration. In its official capacity as the “state’s qualified experts”, the DARTIC at a public meeting on May 21, 2014 determined that the chemical has not been clearly shown through scientifically valid testing according to generally accepted principles to cause reproductive toxicity. Consequently, the chemical is being removed from the list.