(a) Permissible explosives or permissible blasting methods only shall be used in blasting coal or coal and other material in all mines where on shift.(b) Black blasting powder shall not be stored or used in underground coal mines.(c) Prior to use of Cardox or Airdox, both of which are classed as permissible blasting methods, or any other blasting device or method that may later be classed as permissible, the operator must secure written approval from the chief of the division. The chief in granting approval will issue instructions as to storage, transportation, handling, charging, tamping, detonating, and handling misfires. These instructions will be made conditions of the approval, and violations of any of them will be considered violations of this section.(d) Prior to use of dynamite or any other nonpermissible explosive for blasting in rock tunnels, shafts, etc., the operator must secure written approval from the chief of the division. The chief in granting approval shall issue instructions as to storage, transportation, handling, charging, tamping, detonating, and handling misfires. These instructions shall be made conditions of the approval, and violations of any of them will be considered violations of this section.
