Mont. Admin. r. 17.24.519ADownload PDFCurrent through Register Vol. 23, December 6, 2024Rule 17.24.519A - THICK OVERBURDEN AND EXCESS SPOIL (REPEALED)Mont. Admin. r. 17.24.519ANEW, 1989 MAR p. 399, Eff. 1/13/89; AMD, 1994 MAR p. 2957, Eff. 11/11/94; TRANS, from DSL, 1996 MAR p. 3042; REP, 1999 MAR p. 811, Eff. 4/23/99.82-4-204, MCA; IMP, 82-4-231, 82-4-232, MCA;