AUTHORITY: section 622.027, RSMo 1994. Emergency rule filed June 14, 1985, effective July 1, 1985, expired Oct. 28, 1985. Original rule filed Aug. 1, 1985, effective Oct. 29, 1985. Emergency amendment filed Aug. 1, 1986, effective Aug. 13, 1986, expired Oct. 23, 1986. Amended: Filed July 31, 1986, effective Oct. 27, 1986. Amended: Filed Aug. 3, 1995, effective Feb. 25, 1996. Emergency Railroad Safety amendment filed Aug. 16, 1996, effective Aug. 28, 1996, expired Feb. 23, 1997. Emergency rescission filed Nov. 26, 2002, effective Dec. 6, 2002, expired May 30, 2003. Rescinded: Filed Nov. 26, 2002, effective May 30, 2003.