For these regulations, there are taken to be 8 categories of shot-firing as follows:

(a) category 1: underground shot-firing (being the shot-firing involved in tunnelling or in underground or undersea mining);

(b) category 2: surface shot-firing (being the shot-firing involved in above-ground quarrying, road construction and open-cut mining);

(c) category 3: structural shot-firing (being the shot-firing involved in building construction, building demolition and civil engineering work, but with no underground component beyond open excavations of the kind typically required for such things as building foundations, dam or canal construction or highway sidings or underpasses);

(d) category 4: pyrotechnical shot-firing (being the shot-firing involved in firing fireworks in fireworks displays);

(e) category 5: special events shot-firing (being the shot-firing involved in firing cannon or like ordnance at tourism venues or historical re-enactments or musical or theatrical performances);

(f) category 6: agrarian shot-firing (being the shot-firing involved in land clearing or other agricultural or forestry operations);

(g) category 7: exploratory shot-firing (being the shot-firing involved in geological exploration or in seismological, paleontological or other scientific research or experimentation);

(h) category 8: special operations shot-firing (being shot-firing not covered by any other category of shot-firing).