Regulation 137(1) A manager of a mine shall provide, in each shaft in the mine which has an inclination,(a) of more than thirty degrees from the horizontal, a 1adderway which is positioned in a manner that protects it from damage as a result of blasting; and(b) of more than forty degrees from the horizontal, a ladder-way which is connected to the bottom of the shaft by chains or chain ladders.(2) The Chief Inspector may under special circumstances, and subject to specified conditions grant exemptions in writing from the provisions of sub-regulation (1).(3) The manager of a mine shall ensure that in the mine(a) vertical and steeply inclined workings in use are connected with the levels by means of proper ladder ways and separated from the rock passes;(b) in underhand stopes in which the angle of the face of the stope exceeds forty degrees from the horizontal, chains or chain ladders are provided for use of persons employed on the face of the stopes; and(c) ladder ways are kept accessible at all times and covered during shaft repairs but not locked up.(4) Sub-regulation (3) (a) does not apply to underhand stopes which are worked in a manner that ensures that the face of the stope does not exceed an angle of forty degrees from the horizontal