The Secretary conditionally approved the Indiana regulatory program, as submitted on March 3, 1980, amended and clarified on June 4, 1980, resubmitted on September 28, 1981, and clarified on December 8, 1981, April 8, 1982, May 18-19, 1982 and May 26, 1982, effective July 29, 1982. He fully approved the Indiana program, as amended on April 19 and 28, 1983, effective August 19, 1983. Copies of the approved program are available at:
30 C.F.R. §914.10