AUTHORITY: sections 104.310-104.550, RSMo Supp. 1988. Emergency rule filed Dec. 9, 1983, effective Jan. 1, 1984, expired April 17, 1984. Original rule filed Dec. 9, 1983, effective April 11, 1984. Emergency amendment filed March 25, 1987, effective April 4, 1987, expired Aug. 2, 1987. Amended: Filed March 25, 1987, effective July 13, 1987. Emergency rescission and rule filed Dec. 16, 1988, effective Dec. 26, 1988, expired April 16 CSR 30-3 26, 1989. Rescinded and readopted: Filed Feb. 28, 1989, effective May 11, 1989. Rescinded: Filed Dec. 13, 1989, effective March 26, 1990.