310 Ind. Admin. Code 12-5-121.5Download PDFCurrent through October 23, 2024Section 310 IAC 12-5-121.5 - Underground mining; backfilling and grading; previously mined areas (Repealed)310 IAC 12-5-121.5Repealed by Natural Resources Commission; filed Jun 21, 2001, 2:53 p.m.: 24 IR 3613, eff Dec 1, 2001