Section 232(3) in The Coal Mines Regulations, 2011
(3)Air measurement stations shall be fixed at each split through which gas transportation pipe line passes in belowground working and air measurement at all such stations shall be taken in each shift and the record thereof maintained in the bound paged book kept for the purpose, signed by the ventilation officer, official in-charge of the CBM or AMM or CMM operation and counter signed and dated by the manager of the mine.
