Regulation 4 Owner’s duties
The owner of every quarry at which explosives and detonators are used shall so far as is practicable—
(a)
satisfy himself that any person he appoints to be a manager has attained the age of 21 years and is competent to perform the duties imposed on him by these Regulations; and
(b)
provide such facilities and equipment as are necessary to enable shotfiring operations to be carried out safely.