Division 1.2 Written instructions and permits to work

Where required by the explosion protection document:

• work in hazardous places must be carried out in accordance with written instructions issued by the employer,

• a system of permits to work must be applied for carrying out both hazardous activities and activities which may interact with other work to cause hazards.

Permits to work must be issued by a person with responsibility for this function prior to the commencement of work.