4Power to suspend Act by Order in Council in event of emergency
His Majesty may, in the event of war or of imminent national danger or great emergency, or in the event of any grave economic disturbance due to the demand for coal exceeding the supply available at the time, by Order in Council suspend the operation of this Act to such extent and for such period as may be named in the Order, either as respects all coal mines or any class of coal mines.