Section 27-22. Mines and quarries containing flammable dust

Coal mines shall be deemed to be susceptible to flammable dust, except where the HSE plan shows that none of the coal seams being worked contains dust liable to propagate an explosion.
Only explosives and initiating devices that are intended for use in mines susceptible to flammable dust may be used in such mines.
Measures shall be taken to reduce flammable dust deposits and to remove, neutralise or bind the dust.
The propagation of flammable dust or firedamp explosions, which are liable to trigger further flammable dust explosions, shall be limited by a system of explosion barriers. The location of such explosion barriers shall be described in a document that must be kept updated and available in the workplace.