Requirements for Backfilling and Grading for Underground Operations (Rescinded November 30, 2018)

AUTHORITY: sections 444.530 and 444.810, RSMo 2000. Original rule filed Aug. 8, 1980, effective Dec. 11, 1980. Amended: Filed Dec. 10, 1980, effective April 11, 1981. Amended: Filed July 3, 1990, effective Nov. 30, 1990. Amended: Filed May 15, 1992, effective Jan. 15, 1993. Amended: Filed Dec. 17, 2012, effective July 30, 2013. Rescinded: Filed March 26, 2018, effective Nov. 30, 2018. Surface Coal Mining and Related Activities