Explanation of Standard Deviation Rating System for All Contractors (Rescinded September 30, 2026)

AUTHORITY: sections 226.020, 226.130, 227.030, and 227.105, RSMo 2000. Original rule filed Dec. 31, 1990, effective July 8, 1991. Amended: Filed April 13, 1994, effective Oct. 30, 1994. Amended: Filed June 12, 1996, effective Jan. 30, 1997. Emergency rescission and rule filed Nov. 20, 1997, effective Jan. 1, 1998, expired June 29, 1998. Rescinded and readopted: Filed Nov. 20, 1997, effective May 30, 1998. Emergency amendment filed Dec. 1, 2000, effective Jan. 1, 2001, expired June 29, 2001. Amended: Filed Dec. 1, 2000, effective May 30, 2001. Amended: Filed Nov. 20, 2002, effective June 30, 2003. Amended: Filed Dec. 5, 2006, effective July 30, 2007. Rescinded: Filed Feb. 6, 2026, effective Sept. 30, 2026.