.-(1) Explosives are divided into four categories according to the risks which they present when initiated, namely:-(a)Category X-Those explosives, which have a fire or a slight explosion risk or both but the effect of which will be local.(b)Category Y-Those explosives, which have a mass fire risk or a moderate explosion risk, but not the risk of mass explosion.(c)Category Z-Those explosives, which have a mass explosion risk and major missile effect.(d)Category ZZ-Those explosives, which have a mass explosion risk and minor missile effect.(2)If any question arises as to whether any explosive belongs to Category X, Category Y, Category Z or Category ZZ, the matter shall be referred to the Chief Controller whose decision shall be final.(3)The safety distances shall be followed as per tables specified in Schedule VIII.
