The additional health and safety requirements on an employer of persons at work at a mine are as follows:—
1.—(1) Where it is shown by the health and safety document that such a measure is necessary, a system of work permits shall be introduced for carrying out hazardous operations and usually straightforward operations which may interact with other activities to cause serious hazards.
(2) Work permits shall specify the conditions to be fulfilled and the precautions to be taken before, during and after, the work concerned and shall be issued by the employer or person at work in charge of those operations.