Protection of dangerous openings where mine closed

(1) Prior to abandonment of a mine, a manager shall ensure that all shafts, raises, stope openings and adits opening to the surface are capped with a sufficiently engineered structure or filled so that they will not pose a future hazard to persons or animal life. (2) The engineered caps shall be secured to solid rock and shall be capable of supporting a uniformly distributed load of 12 Kilopascals or a concentrated load of 24 Kilonewtons whichever is greater. for covers.