64:27:01:18.  Depletion allowance. The depletion of the source of minerals and mineral products is not a deductible expense.

          Source: 2 SDR 21, effective September 18, 1975; 13 SDR 129, 13 SDR 134, effective July 1, 1987; 21 SDR 219, effective July 1, 1995.

          General Authority:SDCL 10-39-49.

          Law Implemented:SDCL 10-39-45.2.