AUTHORITY: sections 260.225, RSMo 2000, and 260.335, RSMo Supp. 2006. Emergency rule filed Dec. 2, 1992, effective Dec. 12, 1992, expired April 11, 1993. Original rule filed Dec. 2, 1992, effective Aug. 9, 1993. Amended: Filed Dec. 14, 1999, effective Aug. 30, 2000. Amended: Filed Jan. 5, 2007, effective Oct. 30, 2007. In the case of St. Louis—Jefferson Solid Waste Management District v. Department of Natural Resources, State of Missouri WD 85984, the court terminated 10 CSR 80-9.050, effective Oct. 24, 2023.