The Office of Environmental Health Hazard Assessment proposed to amend Cal. Code Regs. tit. 27, §25805, listing S,S,S§tributyl Phosphorotrithioate under Proposition 65 as a chemical known to the state to cause cancer. The comment period ends November 15, 2010. http://www.oal.ca.gov/res/docs/42z-2010.pdf p. 1705.