(1) Any operator of a mine shall designate only certified persons as shotfirers to
prepare the cartridge and set off and discharge the shots.
(2) Shotfirers shall at all times be under the direction of a certified mine foreman.
(3) The following conditions apply when shooting coal from the solid:
(a) All licensees engaged in shooting coal from the solid shall submit an application
for a permit to the commissioner on a form prescribed by the department.
(b) Before said permit is issued by the commissioner he shall have an investigation
conducted of the mine to determine the adequacy of the proposed solid blasting plan
in complying with KRS Chapter 351 and this chapter and administrative regulations
applicable to blasting coal in an underground mine.
(c) The mine inspector shall have the authority to stop production at the mine by
the issuance of a closure order to any operator who fails to obtain a permit when
shooting coal from the solid.
(4) When using the method of solid blasting, no more than one (1) face shall be charged
or detonated simultaneously.
(5) When shooting coal from the solid, not more than two (2) adjacent openers or
cut holes shall be primed with detonators having the same delay period. The nominal delay intervals between the succeeding rows of horizons shall not be
less than fifty (50) milliseconds nor more than one hundred (100) milliseconds.
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