Section 118(3) in The Coal Mines Regulations, 2017
(3)Every application for permission under sub-regulation (2) shall be accompanied by two copies of a plan showing the proposed layout of the workings, section of the seam or seams, the depth of the seams from the surface, the rate and direction of dip, the proposed dimensions of pillars and galleries in each seam or section, and the thickness of the parting between the seams or sections.