An employer, self-employed person or user shall -
(a) apply the safety distances for the respective categories of explosives as stipulated in Annexure 1 to these regulations;
(b) where less than five kilograms of explosives is used, apply to the chief inspector of occupational health and safety for a determination of a safety distance which the employer shall enforce;
(c) in the case of quantities of class 1.1 and 1.5 explosives exceeding five kilograms, ensure that the structures
or areas where they are manufactured, stored, tested or handled in any manner, are mounded: Provided that where, with the permission of the chief inspector of occupational health and safety, mounds are dispensed with, the distances given in columns (1), (2) and (3) of Annexure 1 shall be doubled.