California Code, Education Code - EDC § 49411

(a) The State Department of Education, in cooperation with the Division of Occupational Safety and Health within the Department of Industrial Relations, shall formulate a listing of chemical compounds used in school programs that includes the potential hazards and estimated shelf life of each compound.

(b) The Superintendent of Public Instruction, in cooperation with the Division of Occupational Safety and Health within the Department of Industrial Relations, shall develop guidelines for school districts for the regular removal and disposal of all chemicals whose estimated shelf life has elapsed.

(c) The county superintendent of schools may implement a system for disposing of chemicals from schools within the county or may permit school districts to arrange for the disposal of the chemicals.