Where blasting materials are used, a manager, acceptable to the Chief Inspector of Explosives, shall be
appointed to be responsible for the control, management and direction of the work. The appointment shall be made in writing, and the original letter of appointment, bearing the signature of the person making the
appointment, as well as the signature of the appointee, accepting the appointment, shall be sent forthwith to the Chief Inspector of Explosives and a copy thereof shall be retained by the appointee. Whenever the appointed
manager is necessarily away from his place of work owing to illness or for any other reasons whatsoever, he shall ensure that a competent person is appointed, as aforesaid, to act as his deputy.
