293.510	Dangerous mines to be closed by state, expenses. (8/28/1959)
293.520	Experience required for miners, except trainees. (8/28/1959)
293.530	Notice of opening and abandonment of mines — abandoned mines to be sealed. (8/28/1959)
293.540	Outlets may be required, when — location of shafts. (8/28/1959)
293.550	Ventilation of mines. (8/28/1959)
293.560	State inspections for health safety — procedure when ventilation inadequate. (8/28/1959)
293.570	State inspection for dust — waterlines to be installed, when, sprinkling. (8/28/1959)
293.580	Explosives, storage, handling and use. (8/28/1959)
293.590	Hoisting equipment and operating regulations. (8/28/1967)
293.600	Director may require crossheads in shaft sinking operations. (8/28/1959)